--- _id: '52097' author: - first_name: Iman full_name: Hami Dindar, Iman id: '54836' last_name: Hami Dindar - first_name: Mona full_name: Mirzaei, Mona last_name: Mirzaei - first_name: Elmar full_name: Baumhögger, Elmar id: '15164' last_name: Baumhögger - first_name: Nicole full_name: Lutters, Nicole id: '22006' last_name: Lutters orcid: 0009-0006-7828-8448 - first_name: Eugeny Y. full_name: Kenig, Eugeny Y. id: '665' last_name: Kenig citation: ama: 'Hami Dindar I, Mirzaei M, Baumhögger E, Lutters N, Kenig EY. Experimental and Theoretical Investigation of CO2 Absorption in Aqueous Solution of Glucosamine: Material Property and Equilibrium Data. Journal of Chemical & Engineering Data. Published online 2024. doi:10.1021/acs.jced.3c00554' apa: 'Hami Dindar, I., Mirzaei, M., Baumhögger, E., Lutters, N., & Kenig, E. Y. (2024). Experimental and Theoretical Investigation of CO2 Absorption in Aqueous Solution of Glucosamine: Material Property and Equilibrium Data. Journal of Chemical & Engineering Data. https://doi.org/10.1021/acs.jced.3c00554' bibtex: '@article{Hami Dindar_Mirzaei_Baumhögger_Lutters_Kenig_2024, title={Experimental and Theoretical Investigation of CO2 Absorption in Aqueous Solution of Glucosamine: Material Property and Equilibrium Data}, DOI={10.1021/acs.jced.3c00554}, journal={Journal of Chemical & Engineering Data}, publisher={American Chemical Society (ACS)}, author={Hami Dindar, Iman and Mirzaei, Mona and Baumhögger, Elmar and Lutters, Nicole and Kenig, Eugeny Y.}, year={2024} }' chicago: 'Hami Dindar, Iman, Mona Mirzaei, Elmar Baumhögger, Nicole Lutters, and Eugeny Y. Kenig. “Experimental and Theoretical Investigation of CO2 Absorption in Aqueous Solution of Glucosamine: Material Property and Equilibrium Data.” Journal of Chemical & Engineering Data, 2024. https://doi.org/10.1021/acs.jced.3c00554.' ieee: 'I. Hami Dindar, M. Mirzaei, E. Baumhögger, N. Lutters, and E. Y. Kenig, “Experimental and Theoretical Investigation of CO2 Absorption in Aqueous Solution of Glucosamine: Material Property and Equilibrium Data,” Journal of Chemical & Engineering Data, 2024, doi: 10.1021/acs.jced.3c00554.' mla: 'Hami Dindar, Iman, et al. “Experimental and Theoretical Investigation of CO2 Absorption in Aqueous Solution of Glucosamine: Material Property and Equilibrium Data.” Journal of Chemical & Engineering Data, American Chemical Society (ACS), 2024, doi:10.1021/acs.jced.3c00554.' short: I. Hami Dindar, M. Mirzaei, E. Baumhögger, N. Lutters, E.Y. Kenig, Journal of Chemical & Engineering Data (2024). date_created: 2024-02-27T11:00:37Z date_updated: 2024-03-08T09:08:37Z department: - _id: '9' - _id: '145' doi: 10.1021/acs.jced.3c00554 keyword: - General Chemical Engineering - General Chemistry language: - iso: eng publication: Journal of Chemical & Engineering Data publication_identifier: issn: - 0021-9568 - 1520-5134 publication_status: published publisher: American Chemical Society (ACS) quality_controlled: '1' status: public title: 'Experimental and Theoretical Investigation of CO2 Absorption in Aqueous Solution of Glucosamine: Material Property and Equilibrium Data' type: journal_article user_id: '22006' year: '2024' ... --- _id: '52226' author: - first_name: Mike full_name: Weber, Mike id: '72973' last_name: Weber - first_name: Nicole full_name: Lutters, Nicole id: '22006' last_name: Lutters orcid: 0009-0006-7828-8448 - first_name: Eugeny Y. full_name: Kenig, Eugeny Y. id: '665' last_name: Kenig citation: ama: 'Weber M, Lutters N, Kenig EY. Dynamics of an Absorption/Desorption Plant: Experimental Study and Model Validation. Industrial &amp; Engineering Chemistry Research. Published online 2024. doi:10.1021/acs.iecr.3c03262' apa: 'Weber, M., Lutters, N., & Kenig, E. Y. (2024). Dynamics of an Absorption/Desorption Plant: Experimental Study and Model Validation. Industrial &amp; Engineering Chemistry Research. https://doi.org/10.1021/acs.iecr.3c03262' bibtex: '@article{Weber_Lutters_Kenig_2024, title={Dynamics of an Absorption/Desorption Plant: Experimental Study and Model Validation}, DOI={10.1021/acs.iecr.3c03262}, journal={Industrial &amp; Engineering Chemistry Research}, publisher={American Chemical Society (ACS)}, author={Weber, Mike and Lutters, Nicole and Kenig, Eugeny Y.}, year={2024} }' chicago: 'Weber, Mike, Nicole Lutters, and Eugeny Y. Kenig. “Dynamics of an Absorption/Desorption Plant: Experimental Study and Model Validation.” Industrial &amp; Engineering Chemistry Research, 2024. https://doi.org/10.1021/acs.iecr.3c03262.' ieee: 'M. Weber, N. Lutters, and E. Y. Kenig, “Dynamics of an Absorption/Desorption Plant: Experimental Study and Model Validation,” Industrial &amp; Engineering Chemistry Research, 2024, doi: 10.1021/acs.iecr.3c03262.' mla: 'Weber, Mike, et al. “Dynamics of an Absorption/Desorption Plant: Experimental Study and Model Validation.” Industrial &amp; Engineering Chemistry Research, American Chemical Society (ACS), 2024, doi:10.1021/acs.iecr.3c03262.' short: M. Weber, N. Lutters, E.Y. Kenig, Industrial &amp; Engineering Chemistry Research (2024). date_created: 2024-03-01T09:36:20Z date_updated: 2024-03-08T09:10:16Z department: - _id: '9' - _id: '145' doi: 10.1021/acs.iecr.3c03262 keyword: - Industrial and Manufacturing Engineering - General Chemical Engineering - General Chemistry language: - iso: eng publication: Industrial & Engineering Chemistry Research publication_identifier: issn: - 0888-5885 - 1520-5045 publication_status: published publisher: American Chemical Society (ACS) quality_controlled: '1' status: public title: 'Dynamics of an Absorption/Desorption Plant: Experimental Study and Model Validation' type: journal_article user_id: '22006' year: '2024' ... --- _id: '52738' abstract: - lang: eng text: Through tailoring the geometry and design of biomaterials, additive manufacturing is revolutionizing the production of metallic patient-specific implants, e.g., the Ti-6Al-7Nb alloy. Unfortunately, studies investigating this alloy showed that additively produced samples exhibit anisotropic microstructures. This anisotropy compromises the mechanical properties and complicates the loading state in the implant. Moreover, the minimum requirements as specified per designated standards such as ISO 5832-11 are not met. The remedy to this problem is performing a conventional heat treatment. As this route requires energy, infrastructure, labor, and expertise, which in turn mean time and money, many of the additive manufacturing benefits are negated. Thus, the goal of this work was to achieve better isotropy by applying only adapted additive manufacturing process parameters, specifically focusing on the build orientations. In this work, samples orientated in 90°, 45°, and 0° directions relative to the building platform were manufactured and tested. These tests included mechanical (tensile and fatigue tests) as well as microstructural analyses (SEM and EBSD). Subsequently, the results of these tests such as fractography were correlated with the acquired mechanical properties. These showed that 90°-aligned samples performed best under fatigue load and that all requirements specified by the standard regarding monotonic load were met. article_number: '117' author: - first_name: Dennis full_name: Milaege, Dennis id: '35461' last_name: Milaege - first_name: Niklas full_name: Eschemann, Niklas last_name: Eschemann - first_name: Kay-Peter full_name: Hoyer, Kay-Peter id: '48411' last_name: Hoyer - first_name: Mirko full_name: Schaper, Mirko id: '43720' last_name: Schaper citation: ama: Milaege D, Eschemann N, Hoyer K-P, Schaper M. Anisotropic Mechanical and Microstructural Properties of a Ti-6Al-7Nb Alloy for Biomedical Applications Manufactured via Laser Powder Bed Fusion. Crystals. 2024;14(2). doi:10.3390/cryst14020117 apa: Milaege, D., Eschemann, N., Hoyer, K.-P., & Schaper, M. (2024). Anisotropic Mechanical and Microstructural Properties of a Ti-6Al-7Nb Alloy for Biomedical Applications Manufactured via Laser Powder Bed Fusion. Crystals, 14(2), Article 117. https://doi.org/10.3390/cryst14020117 bibtex: '@article{Milaege_Eschemann_Hoyer_Schaper_2024, title={Anisotropic Mechanical and Microstructural Properties of a Ti-6Al-7Nb Alloy for Biomedical Applications Manufactured via Laser Powder Bed Fusion}, volume={14}, DOI={10.3390/cryst14020117}, number={2117}, journal={Crystals}, publisher={MDPI AG}, author={Milaege, Dennis and Eschemann, Niklas and Hoyer, Kay-Peter and Schaper, Mirko}, year={2024} }' chicago: Milaege, Dennis, Niklas Eschemann, Kay-Peter Hoyer, and Mirko Schaper. “Anisotropic Mechanical and Microstructural Properties of a Ti-6Al-7Nb Alloy for Biomedical Applications Manufactured via Laser Powder Bed Fusion.” Crystals 14, no. 2 (2024). https://doi.org/10.3390/cryst14020117. ieee: 'D. Milaege, N. Eschemann, K.-P. Hoyer, and M. Schaper, “Anisotropic Mechanical and Microstructural Properties of a Ti-6Al-7Nb Alloy for Biomedical Applications Manufactured via Laser Powder Bed Fusion,” Crystals, vol. 14, no. 2, Art. no. 117, 2024, doi: 10.3390/cryst14020117.' mla: Milaege, Dennis, et al. “Anisotropic Mechanical and Microstructural Properties of a Ti-6Al-7Nb Alloy for Biomedical Applications Manufactured via Laser Powder Bed Fusion.” Crystals, vol. 14, no. 2, 117, MDPI AG, 2024, doi:10.3390/cryst14020117. short: D. Milaege, N. Eschemann, K.-P. Hoyer, M. Schaper, Crystals 14 (2024). date_created: 2024-03-22T13:46:37Z date_updated: 2024-03-22T14:22:36Z department: - _id: '158' - _id: '321' doi: 10.3390/cryst14020117 intvolume: ' 14' issue: '2' keyword: - Inorganic Chemistry - Condensed Matter Physics - General Materials Science - General Chemical Engineering language: - iso: eng publication: Crystals publication_identifier: issn: - 2073-4352 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: Anisotropic Mechanical and Microstructural Properties of a Ti-6Al-7Nb Alloy for Biomedical Applications Manufactured via Laser Powder Bed Fusion type: journal_article user_id: '35461' volume: 14 year: '2024' ... --- _id: '47589' author: - first_name: Felix full_name: Krämer, Felix last_name: Krämer - first_name: Jan full_name: Paradies, Jan id: '53339' last_name: Paradies orcid: 0000-0002-3698-668X - first_name: Israel full_name: Fernández, Israel last_name: Fernández - first_name: Frank full_name: Breher, Frank last_name: Breher citation: ama: Krämer F, Paradies J, Fernández I, Breher F. A crystalline aluminium–carbon-based ambiphile capable of activation and catalytic transfer of ammonia in non-aqueous media. Nature Chemistry. Published online 2023. doi:10.1038/s41557-023-01340-9 apa: Krämer, F., Paradies, J., Fernández, I., & Breher, F. (2023). A crystalline aluminium–carbon-based ambiphile capable of activation and catalytic transfer of ammonia in non-aqueous media. Nature Chemistry. https://doi.org/10.1038/s41557-023-01340-9 bibtex: '@article{Krämer_Paradies_Fernández_Breher_2023, title={A crystalline aluminium–carbon-based ambiphile capable of activation and catalytic transfer of ammonia in non-aqueous media}, DOI={10.1038/s41557-023-01340-9}, journal={Nature Chemistry}, publisher={Springer Science and Business Media LLC}, author={Krämer, Felix and Paradies, Jan and Fernández, Israel and Breher, Frank}, year={2023} }' chicago: Krämer, Felix, Jan Paradies, Israel Fernández, and Frank Breher. “A Crystalline Aluminium–Carbon-Based Ambiphile Capable of Activation and Catalytic Transfer of Ammonia in Non-Aqueous Media.” Nature Chemistry, 2023. https://doi.org/10.1038/s41557-023-01340-9. ieee: 'F. Krämer, J. Paradies, I. Fernández, and F. Breher, “A crystalline aluminium–carbon-based ambiphile capable of activation and catalytic transfer of ammonia in non-aqueous media,” Nature Chemistry, 2023, doi: 10.1038/s41557-023-01340-9.' mla: Krämer, Felix, et al. “A Crystalline Aluminium–Carbon-Based Ambiphile Capable of Activation and Catalytic Transfer of Ammonia in Non-Aqueous Media.” Nature Chemistry, Springer Science and Business Media LLC, 2023, doi:10.1038/s41557-023-01340-9. short: F. Krämer, J. Paradies, I. Fernández, F. Breher, Nature Chemistry (2023). date_created: 2023-10-04T14:40:07Z date_updated: 2023-10-04T14:41:12Z department: - _id: '2' - _id: '389' doi: 10.1038/s41557-023-01340-9 keyword: - General Chemical Engineering - General Chemistry language: - iso: eng publication: Nature Chemistry publication_identifier: issn: - 1755-4330 - 1755-4349 publication_status: published publisher: Springer Science and Business Media LLC status: public title: A crystalline aluminium–carbon-based ambiphile capable of activation and catalytic transfer of ammonia in non-aqueous media type: journal_article user_id: '53339' year: '2023' ... --- _id: '47997' abstract: - lang: eng text: The crystal family of potassium titanyl phosphate (KTiOPO4) is a promising material group for applications in quantum and nonlinear optics. The fabrication of low-loss optical waveguides, as well as high-grade periodically poled ferroelectric domain structures, requires a profound understanding of the material properties and crystal structure. In this regard, Raman spectroscopy offers the possibility to study and visualize domain structures, strain, defects, and the local stoichiometry, which are all factors impacting device performance. However, the accurate interpretation of Raman spectra and their changes with respect to extrinsic and intrinsic defects requires a thorough assignment of the Raman modes to their respective crystal features, which to date is only partly conducted based on phenomenological modelling. To address this issue, we calculated the phonon spectra of potassium titanyl phosphate and the related compounds rubidium titanyl phosphate (RbTiOPO4) and potassium titanyl arsenate (KTiOAsO4) based on density functional theory and compared them with experimental data. Overall, this allows us to assign various spectral features to eigenmodes of lattice substructures with improved detail compared to previous assignments. Nevertheless, the analysis also shows that not all features of the spectra can unambigiously be explained yet. A possible explanation might be that defects or long range fields not included in the modeling play a crucial rule for the resulting Raman spectrum. In conclusion, this work provides an improved foundation into the vibrational properties in the KTiOPO4 material family. article_number: '1423' author: - first_name: Sergej full_name: Neufeld, Sergej last_name: Neufeld - first_name: Uwe full_name: Gerstmann, Uwe id: '171' last_name: Gerstmann orcid: 0000-0002-4476-223X - first_name: Laura full_name: Padberg, Laura id: '40300' last_name: Padberg - first_name: Christof full_name: Eigner, Christof id: '13244' last_name: Eigner orcid: https://orcid.org/0000-0002-5693-3083 - first_name: Gerhard full_name: Berth, Gerhard id: '53' last_name: Berth - first_name: Christine full_name: Silberhorn, Christine id: '26263' last_name: Silberhorn - first_name: Lukas M. full_name: Eng, Lukas M. last_name: Eng - first_name: Wolf Gero full_name: Schmidt, Wolf Gero id: '468' last_name: Schmidt orcid: 0000-0002-2717-5076 - first_name: Michael full_name: Rüsing, Michael id: '22501' last_name: Rüsing orcid: 0000-0003-4682-4577 citation: ama: Neufeld S, Gerstmann U, Padberg L, et al. Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family. Crystals. 2023;13(10). doi:10.3390/cryst13101423 apa: Neufeld, S., Gerstmann, U., Padberg, L., Eigner, C., Berth, G., Silberhorn, C., Eng, L. M., Schmidt, W. G., & Rüsing, M. (2023). Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family. Crystals, 13(10), Article 1423. https://doi.org/10.3390/cryst13101423 bibtex: '@article{Neufeld_Gerstmann_Padberg_Eigner_Berth_Silberhorn_Eng_Schmidt_Rüsing_2023, title={Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family}, volume={13}, DOI={10.3390/cryst13101423}, number={101423}, journal={Crystals}, publisher={MDPI AG}, author={Neufeld, Sergej and Gerstmann, Uwe and Padberg, Laura and Eigner, Christof and Berth, Gerhard and Silberhorn, Christine and Eng, Lukas M. and Schmidt, Wolf Gero and Rüsing, Michael}, year={2023} }' chicago: Neufeld, Sergej, Uwe Gerstmann, Laura Padberg, Christof Eigner, Gerhard Berth, Christine Silberhorn, Lukas M. Eng, Wolf Gero Schmidt, and Michael Rüsing. “Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family.” Crystals 13, no. 10 (2023). https://doi.org/10.3390/cryst13101423. ieee: 'S. Neufeld et al., “Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family,” Crystals, vol. 13, no. 10, Art. no. 1423, 2023, doi: 10.3390/cryst13101423.' mla: Neufeld, Sergej, et al. “Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family.” Crystals, vol. 13, no. 10, 1423, MDPI AG, 2023, doi:10.3390/cryst13101423. short: S. Neufeld, U. Gerstmann, L. Padberg, C. Eigner, G. Berth, C. Silberhorn, L.M. Eng, W.G. Schmidt, M. Rüsing, Crystals 13 (2023). date_created: 2023-10-11T09:10:53Z date_updated: 2023-10-11T09:15:58Z department: - _id: '169' doi: 10.3390/cryst13101423 funded_apc: '1' intvolume: ' 13' issue: '10' keyword: - Inorganic Chemistry - Condensed Matter Physics - General Materials Science - General Chemical Engineering language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.3390/cryst13101423 oa: '1' project: - _id: '168' grant_number: '231447078' name: 'TRR 142 - B07: TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften von Lithiumniobat (B07*)' - _id: '55' name: 'TRR 142 - B: TRR 142 - Project Area B' - _id: '266' grant_number: PROFILNRW-2020-067 name: 'PhoQC: PhoQC: Photonisches Quantencomputing' publication: Crystals publication_identifier: issn: - 2073-4352 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family type: journal_article user_id: '22501' volume: 13 year: '2023' ... --- _id: '49107' abstract: - lang: eng text: The effect of plaque deposition (atherosclerosis) on blood flow behaviour is investigated via computational fluid dynamics and structural mechanics simulations. To mitigate the narrowing of coronary artery atherosclerosis (stenosis), the computational modelling of auxetic and non-auxetic stents was performed in this study to minimise or even avoid these deposition agents in the future. Computational modelling was performed in unrestricted (open) conditions and restricted (in an artery) conditions. Finally, stent designs were produced by additive manufacturing, and mechanical testing of the stents was undertaken. Auxetic stent 1 and auxetic stent 2 exhibit very little foreshortening and radial recoil in unrestricted deployment conditions compared to non-auxetic stent 3. However, stent 2 shows structural instability (strut failure) during unrestricted deployment conditions. For the restricted deployment condition, stent 1 shows a higher radial recoil compared to stent 3. In the tensile test simulations, short elongation for stent 1 due to strut failure is demonstrated, whereas no structural instability is noticed for stent 2 and stent 3 until 0.5 (mm/mm) strain. The as-built samples show a significant thickening of the struts of the stents resulting in short elongations during tensile testing compared to the simulations (stent 2 and stent 3). A modelling framework for the stent deployment system that enables the selection of appropriate stent designs before in vivo testing is required. This leads to the acceleration of the development process and a reduction in time, resulting in less material wastage. The modelling framework shall be useful for doctors designing patient-specific stents. article_number: '1592' author: - first_name: Sudipta full_name: Pramanik, Sudipta last_name: Pramanik - first_name: Dennis full_name: Milaege, Dennis last_name: Milaege - first_name: Maxwell full_name: Hein, Maxwell id: '52771' last_name: Hein orcid: 0000-0002-3732-2236 - first_name: Kay-Peter full_name: Hoyer, Kay-Peter id: '48411' last_name: Hoyer - first_name: Mirko full_name: Schaper, Mirko id: '43720' last_name: Schaper citation: ama: 'Pramanik S, Milaege D, Hein M, Hoyer K-P, Schaper M. Additive Manufacturing and Mechanical Properties of Auxetic and Non-Auxetic Ti24Nb4Zr8Sn Biomedical Stents: A Combined Experimental and Computational Modelling Approach. Crystals. 2023;13(11). doi:10.3390/cryst13111592' apa: 'Pramanik, S., Milaege, D., Hein, M., Hoyer, K.-P., & Schaper, M. (2023). Additive Manufacturing and Mechanical Properties of Auxetic and Non-Auxetic Ti24Nb4Zr8Sn Biomedical Stents: A Combined Experimental and Computational Modelling Approach. Crystals, 13(11), Article 1592. https://doi.org/10.3390/cryst13111592' bibtex: '@article{Pramanik_Milaege_Hein_Hoyer_Schaper_2023, title={Additive Manufacturing and Mechanical Properties of Auxetic and Non-Auxetic Ti24Nb4Zr8Sn Biomedical Stents: A Combined Experimental and Computational Modelling Approach}, volume={13}, DOI={10.3390/cryst13111592}, number={111592}, journal={Crystals}, publisher={MDPI AG}, author={Pramanik, Sudipta and Milaege, Dennis and Hein, Maxwell and Hoyer, Kay-Peter and Schaper, Mirko}, year={2023} }' chicago: 'Pramanik, Sudipta, Dennis Milaege, Maxwell Hein, Kay-Peter Hoyer, and Mirko Schaper. “Additive Manufacturing and Mechanical Properties of Auxetic and Non-Auxetic Ti24Nb4Zr8Sn Biomedical Stents: A Combined Experimental and Computational Modelling Approach.” Crystals 13, no. 11 (2023). https://doi.org/10.3390/cryst13111592.' ieee: 'S. Pramanik, D. Milaege, M. Hein, K.-P. Hoyer, and M. Schaper, “Additive Manufacturing and Mechanical Properties of Auxetic and Non-Auxetic Ti24Nb4Zr8Sn Biomedical Stents: A Combined Experimental and Computational Modelling Approach,” Crystals, vol. 13, no. 11, Art. no. 1592, 2023, doi: 10.3390/cryst13111592.' mla: 'Pramanik, Sudipta, et al. “Additive Manufacturing and Mechanical Properties of Auxetic and Non-Auxetic Ti24Nb4Zr8Sn Biomedical Stents: A Combined Experimental and Computational Modelling Approach.” Crystals, vol. 13, no. 11, 1592, MDPI AG, 2023, doi:10.3390/cryst13111592.' short: S. Pramanik, D. Milaege, M. Hein, K.-P. Hoyer, M. Schaper, Crystals 13 (2023). date_created: 2023-11-21T15:29:49Z date_updated: 2023-11-21T15:30:57Z department: - _id: '9' - _id: '158' doi: 10.3390/cryst13111592 intvolume: ' 13' issue: '11' keyword: - Inorganic Chemistry - Condensed Matter Physics - General Materials Science - General Chemical Engineering language: - iso: eng publication: Crystals publication_identifier: issn: - 2073-4352 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: 'Additive Manufacturing and Mechanical Properties of Auxetic and Non-Auxetic Ti24Nb4Zr8Sn Biomedical Stents: A Combined Experimental and Computational Modelling Approach' type: journal_article user_id: '48411' volume: 13 year: '2023' ... --- _id: '47551' article_number: '108132' author: - first_name: Thorben full_name: Hochhaus, Thorben last_name: Hochhaus - first_name: Bastian full_name: Bruns, Bastian last_name: Bruns - first_name: Marcus full_name: Grünewald, Marcus last_name: Grünewald - first_name: Julia full_name: Riese, Julia id: '101499' last_name: Riese orcid: 0000-0002-3053-0534 citation: ama: 'Hochhaus T, Bruns B, Grünewald M, Riese J. Optimal scheduling of a large-scale power-to-ammonia process: Effects of parameter optimization on the indirect demand response potential. Computers & Chemical Engineering. 2023;170. doi:10.1016/j.compchemeng.2023.108132' apa: 'Hochhaus, T., Bruns, B., Grünewald, M., & Riese, J. (2023). Optimal scheduling of a large-scale power-to-ammonia process: Effects of parameter optimization on the indirect demand response potential. Computers & Chemical Engineering, 170, Article 108132. https://doi.org/10.1016/j.compchemeng.2023.108132' bibtex: '@article{Hochhaus_Bruns_Grünewald_Riese_2023, title={Optimal scheduling of a large-scale power-to-ammonia process: Effects of parameter optimization on the indirect demand response potential}, volume={170}, DOI={10.1016/j.compchemeng.2023.108132}, number={108132}, journal={Computers & Chemical Engineering}, publisher={Elsevier BV}, author={Hochhaus, Thorben and Bruns, Bastian and Grünewald, Marcus and Riese, Julia}, year={2023} }' chicago: 'Hochhaus, Thorben, Bastian Bruns, Marcus Grünewald, and Julia Riese. “Optimal Scheduling of a Large-Scale Power-to-Ammonia Process: Effects of Parameter Optimization on the Indirect Demand Response Potential.” Computers & Chemical Engineering 170 (2023). https://doi.org/10.1016/j.compchemeng.2023.108132.' ieee: 'T. Hochhaus, B. Bruns, M. Grünewald, and J. Riese, “Optimal scheduling of a large-scale power-to-ammonia process: Effects of parameter optimization on the indirect demand response potential,” Computers & Chemical Engineering, vol. 170, Art. no. 108132, 2023, doi: 10.1016/j.compchemeng.2023.108132.' mla: 'Hochhaus, Thorben, et al. “Optimal Scheduling of a Large-Scale Power-to-Ammonia Process: Effects of Parameter Optimization on the Indirect Demand Response Potential.” Computers & Chemical Engineering, vol. 170, 108132, Elsevier BV, 2023, doi:10.1016/j.compchemeng.2023.108132.' short: T. Hochhaus, B. Bruns, M. Grünewald, J. Riese, Computers & Chemical Engineering 170 (2023). date_created: 2023-10-04T14:11:47Z date_updated: 2024-03-08T11:30:41Z doi: 10.1016/j.compchemeng.2023.108132 extern: '1' intvolume: ' 170' keyword: - Computer Science Applications - General Chemical Engineering language: - iso: eng publication: Computers & Chemical Engineering publication_identifier: issn: - 0098-1354 publication_status: published publisher: Elsevier BV quality_controlled: '1' status: public title: 'Optimal scheduling of a large-scale power-to-ammonia process: Effects of parameter optimization on the indirect demand response potential' type: journal_article user_id: '101499' volume: 170 year: '2023' ... --- _id: '53078' abstract: - lang: eng text: In spray-flame synthesis of nanoparticles, a precise understanding of the reaction processes is necessary to find optimal process parameters for the formation of the desired products. Coupling the chemistries of flame, solvent, and gas-phase species initially formed from the particle precursor in combination with the complex flow geometry of the spray flame means a special challenge for the modeling of the reaction processes. A new burner has been developed that is capable to observe the reaction of precursor solutions frequently used in spray-flame synthesis. The burner provides an almost flat, laminar, and steady flame with homogeneous addition of a fine aerosol and thus enables detailed investigation and modeling of the coupled reactions inde-pendent of spray formation and turbulent mixing. With its two separate supply channel matrices, the burner also enables the use of reactants that would otherwise react with each other already before reaching the flame. These features enable the investigation of a wide range of flame-based synthesis methods for nanoparticles and, due to the flat-flame geometry, kinetics models for these processes can be developed and validated. This work describes the matrix burner development and its gas flow optimization by simulation. Droplet-size dis-tributions generated by ultrasonic nebulization and their interaction with the burner structure are investigated by phase-Doppler anemometry. As an example for nanoparticle-for ming flames from solutions, iron-oxide nanoparticle-generating flames using iron(III) nitrate nonahydrate dissolved in 1-butanol were investigated. This effort includes measurements of two-dimensional maps of the flame temperature by a thermocouple and height-dependent concentration profiles of the main species by time-of-flight mass spectrometry. Exper-imental data are compared with 1D simulations using a reduced reaction mechanism. The results show that the new burner is well suited for the development of reaction models for precursors supplied in the liquid phase usually applied in spray-flame synthesis configurations.& COPY; 2022 The Combustion Institute. Published by Elsevier Inc. All rights reserved. article_type: original author: - first_name: Sascha full_name: Apazeller, Sascha last_name: Apazeller - first_name: Munko full_name: Gonchikzhapov, Munko last_name: Gonchikzhapov - first_name: Monika full_name: Nanjaiah, Monika last_name: Nanjaiah - first_name: Tina full_name: Kasper, Tina last_name: Kasper - first_name: Irenäus full_name: Wlokas, Irenäus last_name: Wlokas - first_name: Hartmut full_name: Wiggers, Hartmut last_name: Wiggers - first_name: Christof full_name: Schulz, Christof last_name: Schulz citation: ama: Apazeller S, Gonchikzhapov M, Nanjaiah M, et al. A new dual matrix burner for one-dimensional investigation of aerosol flames. Proceedings of the Combustion Institute. 2023;39(1):909-918. doi:10.1016/j.proci.2022.07.166 apa: Apazeller, S., Gonchikzhapov, M., Nanjaiah, M., Kasper, T., Wlokas, I., Wiggers, H., & Schulz, C. (2023). A new dual matrix burner for one-dimensional investigation of aerosol flames. Proceedings of the Combustion Institute, 39(1), 909–918. https://doi.org/10.1016/j.proci.2022.07.166 bibtex: '@article{Apazeller_Gonchikzhapov_Nanjaiah_Kasper_Wlokas_Wiggers_Schulz_2023, title={A new dual matrix burner for one-dimensional investigation of aerosol flames}, volume={39}, DOI={10.1016/j.proci.2022.07.166}, number={1}, journal={Proceedings of the Combustion Institute}, publisher={Elsevier BV}, author={Apazeller, Sascha and Gonchikzhapov, Munko and Nanjaiah, Monika and Kasper, Tina and Wlokas, Irenäus and Wiggers, Hartmut and Schulz, Christof}, year={2023}, pages={909–918} }' chicago: 'Apazeller, Sascha, Munko Gonchikzhapov, Monika Nanjaiah, Tina Kasper, Irenäus Wlokas, Hartmut Wiggers, and Christof Schulz. “A New Dual Matrix Burner for One-Dimensional Investigation of Aerosol Flames.” Proceedings of the Combustion Institute 39, no. 1 (2023): 909–18. https://doi.org/10.1016/j.proci.2022.07.166.' ieee: 'S. Apazeller et al., “A new dual matrix burner for one-dimensional investigation of aerosol flames,” Proceedings of the Combustion Institute, vol. 39, no. 1, pp. 909–918, 2023, doi: 10.1016/j.proci.2022.07.166.' mla: Apazeller, Sascha, et al. “A New Dual Matrix Burner for One-Dimensional Investigation of Aerosol Flames.” Proceedings of the Combustion Institute, vol. 39, no. 1, Elsevier BV, 2023, pp. 909–18, doi:10.1016/j.proci.2022.07.166. short: S. Apazeller, M. Gonchikzhapov, M. Nanjaiah, T. Kasper, I. Wlokas, H. Wiggers, C. Schulz, Proceedings of the Combustion Institute 39 (2023) 909–918. date_created: 2024-03-27T16:14:34Z date_updated: 2024-03-27T16:30:15Z department: - _id: '728' doi: 10.1016/j.proci.2022.07.166 intvolume: ' 39' issue: '1' keyword: - Physical and Theoretical Chemistry - Mechanical Engineering - General Chemical Engineering language: - iso: eng page: 909-918 publication: Proceedings of the Combustion Institute publication_identifier: issn: - 1540-7489 publication_status: published publisher: Elsevier BV quality_controlled: '1' status: public title: A new dual matrix burner for one-dimensional investigation of aerosol flames type: journal_article user_id: '94562' volume: 39 year: '2023' ... --- _id: '36812' author: - first_name: Sascha full_name: Apazeller, Sascha last_name: Apazeller - first_name: Munko full_name: Gonchikzhapov, Munko id: '94996' last_name: Gonchikzhapov orcid: https://orcid.org/0000-0002-7773-047X - first_name: Monika full_name: Nanjaiah, Monika last_name: Nanjaiah - first_name: Tina full_name: Kasper, Tina id: '94562' last_name: Kasper orcid: '0000-0003-3993-5316 ' - first_name: Irenäus full_name: Wlokas, Irenäus last_name: Wlokas - first_name: Hartmut full_name: Wiggers, Hartmut last_name: Wiggers - first_name: Christof full_name: Schulz, Christof last_name: Schulz citation: ama: Apazeller S, Gonchikzhapov M, Nanjaiah M, et al. A new dual matrix burner for one-dimensional investigation of aerosol flames. Proceedings of the Combustion Institute. Published online 2023. doi:10.1016/j.proci.2022.07.166 apa: Apazeller, S., Gonchikzhapov, M., Nanjaiah, M., Kasper, T., Wlokas, I., Wiggers, H., & Schulz, C. (2023). A new dual matrix burner for one-dimensional investigation of aerosol flames. Proceedings of the Combustion Institute. https://doi.org/10.1016/j.proci.2022.07.166 bibtex: '@article{Apazeller_Gonchikzhapov_Nanjaiah_Kasper_Wlokas_Wiggers_Schulz_2023, title={A new dual matrix burner for one-dimensional investigation of aerosol flames}, DOI={10.1016/j.proci.2022.07.166}, journal={Proceedings of the Combustion Institute}, publisher={Elsevier BV}, author={Apazeller, Sascha and Gonchikzhapov, Munko and Nanjaiah, Monika and Kasper, Tina and Wlokas, Irenäus and Wiggers, Hartmut and Schulz, Christof}, year={2023} }' chicago: Apazeller, Sascha, Munko Gonchikzhapov, Monika Nanjaiah, Tina Kasper, Irenäus Wlokas, Hartmut Wiggers, and Christof Schulz. “A New Dual Matrix Burner for One-Dimensional Investigation of Aerosol Flames.” Proceedings of the Combustion Institute, 2023. https://doi.org/10.1016/j.proci.2022.07.166. ieee: 'S. Apazeller et al., “A new dual matrix burner for one-dimensional investigation of aerosol flames,” Proceedings of the Combustion Institute, 2023, doi: 10.1016/j.proci.2022.07.166.' mla: Apazeller, Sascha, et al. “A New Dual Matrix Burner for One-Dimensional Investigation of Aerosol Flames.” Proceedings of the Combustion Institute, Elsevier BV, 2023, doi:10.1016/j.proci.2022.07.166. short: S. Apazeller, M. Gonchikzhapov, M. Nanjaiah, T. Kasper, I. Wlokas, H. Wiggers, C. Schulz, Proceedings of the Combustion Institute (2023). date_created: 2023-01-13T16:28:59Z date_updated: 2024-03-27T17:31:06Z department: - _id: '9' - _id: '728' doi: 10.1016/j.proci.2022.07.166 keyword: - Physical and Theoretical Chemistry - Mechanical Engineering - General Chemical Engineering language: - iso: eng publication: Proceedings of the Combustion Institute publication_identifier: issn: - 1540-7489 publication_status: published publisher: Elsevier BV status: public title: A new dual matrix burner for one-dimensional investigation of aerosol flames type: journal_article user_id: '94562' year: '2023' ... --- _id: '53074' article_number: '112820' author: - first_name: Tina full_name: Kasper, Tina last_name: Kasper - first_name: Nils full_name: Hansen, Nils last_name: Hansen citation: ama: Kasper T, Hansen N. Resonance enhanced multiphoton ionization detection of aromatics formation in fuel-rich flames. Combustion and Flame. 2023;257. doi:10.1016/j.combustflame.2023.112820 apa: Kasper, T., & Hansen, N. (2023). Resonance enhanced multiphoton ionization detection of aromatics formation in fuel-rich flames. Combustion and Flame, 257, Article 112820. https://doi.org/10.1016/j.combustflame.2023.112820 bibtex: '@article{Kasper_Hansen_2023, title={Resonance enhanced multiphoton ionization detection of aromatics formation in fuel-rich flames}, volume={257}, DOI={10.1016/j.combustflame.2023.112820}, number={112820}, journal={Combustion and Flame}, publisher={Elsevier BV}, author={Kasper, Tina and Hansen, Nils}, year={2023} }' chicago: Kasper, Tina, and Nils Hansen. “Resonance Enhanced Multiphoton Ionization Detection of Aromatics Formation in Fuel-Rich Flames.” Combustion and Flame 257 (2023). https://doi.org/10.1016/j.combustflame.2023.112820. ieee: 'T. Kasper and N. Hansen, “Resonance enhanced multiphoton ionization detection of aromatics formation in fuel-rich flames,” Combustion and Flame, vol. 257, Art. no. 112820, 2023, doi: 10.1016/j.combustflame.2023.112820.' mla: Kasper, Tina, and Nils Hansen. “Resonance Enhanced Multiphoton Ionization Detection of Aromatics Formation in Fuel-Rich Flames.” Combustion and Flame, vol. 257, 112820, Elsevier BV, 2023, doi:10.1016/j.combustflame.2023.112820. short: T. Kasper, N. Hansen, Combustion and Flame 257 (2023). date_created: 2024-03-27T16:07:31Z date_updated: 2024-03-27T16:23:48Z department: - _id: '728' doi: 10.1016/j.combustflame.2023.112820 intvolume: ' 257' keyword: - General Physics and Astronomy - Energy Engineering and Power Technology - Fuel Technology - General Chemical Engineering - General Chemistry language: - iso: eng publication: Combustion and Flame publication_identifier: issn: - 0010-2180 publication_status: published publisher: Elsevier BV status: public title: Resonance enhanced multiphoton ionization detection of aromatics formation in fuel-rich flames type: journal_article user_id: '94562' volume: 257 year: '2023' ... --- _id: '53170' abstract: - lang: eng text: AbstractCoating medical implants with antibacterial polymers may prevent postoperative infections which are a common issue for conventional titanium implants and can even lead to implant failure. Easily applicable diblock copolymers are presented that form polymer brushes via “grafting to” mechanism on titanium and equip the modified material with antibacterial properties. The polymers carry quaternized pyridinium units to combat bacteria and phosphonic acid groups which allow the linear chains to be anchored to metal surfaces in a convenient coating process. The polymers are synthesized via reversible‐addition‐fragmentation‐chain‐transfer (RAFT) polymerization and postmodifications and are characterized using NMR spectroscopy and SEC. Low grafting densities are a major drawback of the “grafting to” approach compared to “grafting from”. Thus, the number of phosphonic acid groups in the anchor block are varied to investigate and optimize the surface binding. Modified titanium surfaces are examined regarding their composition, wetting behavior, streaming potential, and coating stability. Evaluation of the antimicrobial properties revealed reduced bacterial adhesion and biofilm formation for certain polymers, albeit the cell biocompatibility against human gingival fibroblasts is also impaired. The presented findings show the potential of easy‐to‐apply polymer coatings and aid in designing next‐generation implant surface modifications. article_type: original author: - first_name: Rafael full_name: Methling, Rafael last_name: Methling - first_name: Oliver full_name: Dückmann, Oliver last_name: Dückmann - first_name: Frank full_name: Simon, Frank last_name: Simon - first_name: Cornelia full_name: Wolf‐Brandstetter, Cornelia last_name: Wolf‐Brandstetter - first_name: Dirk full_name: Kuckling, Dirk id: '287' last_name: Kuckling citation: ama: Methling R, Dückmann O, Simon F, Wolf‐Brandstetter C, Kuckling D. Antimicrobial Brushes on Titanium via “Grafting to” Using Phosphonic Acid/Pyridinium Containing Block Copolymers. Macromolecular Materials and Engineering. 2023;308(8). doi:10.1002/mame.202200665 apa: Methling, R., Dückmann, O., Simon, F., Wolf‐Brandstetter, C., & Kuckling, D. (2023). Antimicrobial Brushes on Titanium via “Grafting to” Using Phosphonic Acid/Pyridinium Containing Block Copolymers. Macromolecular Materials and Engineering, 308(8). https://doi.org/10.1002/mame.202200665 bibtex: '@article{Methling_Dückmann_Simon_Wolf‐Brandstetter_Kuckling_2023, title={Antimicrobial Brushes on Titanium via “Grafting to” Using Phosphonic Acid/Pyridinium Containing Block Copolymers}, volume={308}, DOI={10.1002/mame.202200665}, number={8}, journal={Macromolecular Materials and Engineering}, publisher={Wiley}, author={Methling, Rafael and Dückmann, Oliver and Simon, Frank and Wolf‐Brandstetter, Cornelia and Kuckling, Dirk}, year={2023} }' chicago: Methling, Rafael, Oliver Dückmann, Frank Simon, Cornelia Wolf‐Brandstetter, and Dirk Kuckling. “Antimicrobial Brushes on Titanium via ‘Grafting to’ Using Phosphonic Acid/Pyridinium Containing Block Copolymers.” Macromolecular Materials and Engineering 308, no. 8 (2023). https://doi.org/10.1002/mame.202200665. ieee: 'R. Methling, O. Dückmann, F. Simon, C. Wolf‐Brandstetter, and D. Kuckling, “Antimicrobial Brushes on Titanium via ‘Grafting to’ Using Phosphonic Acid/Pyridinium Containing Block Copolymers,” Macromolecular Materials and Engineering, vol. 308, no. 8, 2023, doi: 10.1002/mame.202200665.' mla: Methling, Rafael, et al. “Antimicrobial Brushes on Titanium via ‘Grafting to’ Using Phosphonic Acid/Pyridinium Containing Block Copolymers.” Macromolecular Materials and Engineering, vol. 308, no. 8, Wiley, 2023, doi:10.1002/mame.202200665. short: R. Methling, O. Dückmann, F. Simon, C. Wolf‐Brandstetter, D. Kuckling, Macromolecular Materials and Engineering 308 (2023). date_created: 2024-04-03T11:08:51Z date_updated: 2024-04-03T11:10:05Z department: - _id: '163' doi: 10.1002/mame.202200665 intvolume: ' 308' issue: '8' keyword: - Materials Chemistry - Polymers and Plastics - Organic Chemistry - General Chemical Engineering language: - iso: eng publication: Macromolecular Materials and Engineering publication_identifier: issn: - 1438-7492 - 1439-2054 publication_status: published publisher: Wiley status: public title: Antimicrobial Brushes on Titanium via “Grafting to” Using Phosphonic Acid/Pyridinium Containing Block Copolymers type: journal_article user_id: '94' volume: 308 year: '2023' ... --- _id: '46481' abstract: - lang: eng text: AbstractAlthough iron is a dream candidate to substitute noble metals in photoactive complexes, realization of emissive and photoactive iron compounds is demanding due to the fast deactivation of their charge-transfer states. Emissive iron compounds are scarce and dual emission has not been observed before. Here we report the FeIII complex [Fe(ImP)2][PF6] (HImP = 1,1′-(1,3-phenylene)bis(3-methyl-1-imidazol-2-ylidene)), showing a Janus-type dual emission from ligand-to-metal charge transfer (LMCT)- and metal-to-ligand charge transfer (MLCT)-dominated states. This behaviour is achieved by a ligand design that combines four N-heterocyclic carbenes with two cyclometalating aryl units. The low-lying π* levels of the cyclometalating units lead to energetically accessible MLCT states that cannot evolve into LMCT states. With a lifetime of 4.6 ns, the strongly reducing and oxidizing MLCT-dominated state can initiate electron transfer reactions, which could constitute a basis for future applications of iron in photoredox catalysis. author: - first_name: Jakob full_name: Steube, Jakob id: '40342' last_name: Steube orcid: 0000-0003-3178-4429 - first_name: Ayla full_name: Kruse, Ayla last_name: Kruse - first_name: Olga S. full_name: Bokareva, Olga S. last_name: Bokareva - first_name: Thomas full_name: Reuter, Thomas last_name: Reuter - first_name: Serhiy full_name: Demeshko, Serhiy last_name: Demeshko - first_name: Roland full_name: Schoch, Roland id: '48467' last_name: Schoch orcid: 0000-0003-2061-7289 - first_name: Miguel A. full_name: Argüello Cordero, Miguel A. last_name: Argüello Cordero - first_name: Athul full_name: Krishna, Athul last_name: Krishna - first_name: Stephan full_name: Hohloch, Stephan last_name: Hohloch - first_name: Franc full_name: Meyer, Franc last_name: Meyer - first_name: Katja full_name: Heinze, Katja last_name: Heinze - first_name: Oliver full_name: Kühn, Oliver last_name: Kühn - first_name: Stefan full_name: Lochbrunner, Stefan last_name: Lochbrunner - first_name: Matthias full_name: Bauer, Matthias id: '47241' last_name: Bauer orcid: 0000-0002-9294-6076 citation: ama: Steube J, Kruse A, Bokareva OS, et al. Janus-type emission from a cyclometalated iron(iii) complex. Nature Chemistry. 2023;15(4):468-474. doi:10.1038/s41557-023-01137-w apa: Steube, J., Kruse, A., Bokareva, O. S., Reuter, T., Demeshko, S., Schoch, R., Argüello Cordero, M. A., Krishna, A., Hohloch, S., Meyer, F., Heinze, K., Kühn, O., Lochbrunner, S., & Bauer, M. (2023). Janus-type emission from a cyclometalated iron(iii) complex. Nature Chemistry, 15(4), 468–474. https://doi.org/10.1038/s41557-023-01137-w bibtex: '@article{Steube_Kruse_Bokareva_Reuter_Demeshko_Schoch_Argüello Cordero_Krishna_Hohloch_Meyer_et al._2023, title={Janus-type emission from a cyclometalated iron(iii) complex}, volume={15}, DOI={10.1038/s41557-023-01137-w}, number={4}, journal={Nature Chemistry}, publisher={Springer Science and Business Media LLC}, author={Steube, Jakob and Kruse, Ayla and Bokareva, Olga S. and Reuter, Thomas and Demeshko, Serhiy and Schoch, Roland and Argüello Cordero, Miguel A. and Krishna, Athul and Hohloch, Stephan and Meyer, Franc and et al.}, year={2023}, pages={468–474} }' chicago: 'Steube, Jakob, Ayla Kruse, Olga S. Bokareva, Thomas Reuter, Serhiy Demeshko, Roland Schoch, Miguel A. Argüello Cordero, et al. “Janus-Type Emission from a Cyclometalated Iron(Iii) Complex.” Nature Chemistry 15, no. 4 (2023): 468–74. https://doi.org/10.1038/s41557-023-01137-w.' ieee: 'J. Steube et al., “Janus-type emission from a cyclometalated iron(iii) complex,” Nature Chemistry, vol. 15, no. 4, pp. 468–474, 2023, doi: 10.1038/s41557-023-01137-w.' mla: Steube, Jakob, et al. “Janus-Type Emission from a Cyclometalated Iron(Iii) Complex.” Nature Chemistry, vol. 15, no. 4, Springer Science and Business Media LLC, 2023, pp. 468–74, doi:10.1038/s41557-023-01137-w. short: J. Steube, A. Kruse, O.S. Bokareva, T. Reuter, S. Demeshko, R. Schoch, M.A. Argüello Cordero, A. Krishna, S. Hohloch, F. Meyer, K. Heinze, O. Kühn, S. Lochbrunner, M. Bauer, Nature Chemistry 15 (2023) 468–474. date_created: 2023-08-11T19:57:32Z date_updated: 2024-09-05T11:44:07Z department: - _id: '306' doi: 10.1038/s41557-023-01137-w intvolume: ' 15' issue: '4' keyword: - General Chemical Engineering - General Chemistry language: - iso: eng page: 468-474 publication: Nature Chemistry publication_identifier: issn: - 1755-4330 - 1755-4349 publication_status: published publisher: Springer Science and Business Media LLC status: public title: Janus-type emission from a cyclometalated iron(iii) complex type: journal_article user_id: '48467' volume: 15 year: '2023' ... --- _id: '42165' abstract: - lang: eng text: AbstractComposite materials, such as fiber reinforced polymers, become increasingly important due to their excellent mechanical and lightweight properties. In this respect, this paper reports the characterization of a unidirectional carbon fiber reinforced polymer composite material. Particularly, the mechanical behavior of the overall composite and of the individual constituents of the composite is investigated. To this end, tensile and shear tests are performed for the composite. As a result, statistics for five transversely isotropic material parameters can be established for the composite. For the description of the mechanical properties of the constituents, tensile tests for the carbon fiber as well as for the polymer matrix are carried out. In addition, the volume fraction of fibers in the matrix is determined experimentally using an ashing technique and Archimedes’ principle. For the Young’s modulus of the fiber, the Young’s modulus and transverse contraction of the matrix, as well as the volume fraction of the constituents, statistics can be concluded. The resulting mechanical properties on both scales are useful for the application and validation of different material models and homogenization methods. Finally, in order to validate the obtained properties in the future, inhomogeneous tests were performed, once a flat plate with a hole and a flat plate with semicircular notches. author: - first_name: Eduard full_name: Penner, Eduard last_name: Penner - first_name: Ismail full_name: Caylak, Ismail id: '75' last_name: Caylak - first_name: Rolf full_name: Mahnken, Rolf id: '335' last_name: Mahnken citation: ama: Penner E, Caylak I, Mahnken R. Experimental Investigations of Carbon Fiber Reinforced Polymer Composites and Their Constituents to Determine Their Elastic Material Properties and Complementary Inhomogeneous Experiments with Local Strain Considerations. Fibers and Polymers. Published online 2023. doi:10.1007/s12221-023-00122-x apa: Penner, E., Caylak, I., & Mahnken, R. (2023). Experimental Investigations of Carbon Fiber Reinforced Polymer Composites and Their Constituents to Determine Their Elastic Material Properties and Complementary Inhomogeneous Experiments with Local Strain Considerations. Fibers and Polymers. https://doi.org/10.1007/s12221-023-00122-x bibtex: '@article{Penner_Caylak_Mahnken_2023, title={Experimental Investigations of Carbon Fiber Reinforced Polymer Composites and Their Constituents to Determine Their Elastic Material Properties and Complementary Inhomogeneous Experiments with Local Strain Considerations}, DOI={10.1007/s12221-023-00122-x}, journal={Fibers and Polymers}, publisher={Springer Science and Business Media LLC}, author={Penner, Eduard and Caylak, Ismail and Mahnken, Rolf}, year={2023} }' chicago: Penner, Eduard, Ismail Caylak, and Rolf Mahnken. “Experimental Investigations of Carbon Fiber Reinforced Polymer Composites and Their Constituents to Determine Their Elastic Material Properties and Complementary Inhomogeneous Experiments with Local Strain Considerations.” Fibers and Polymers, 2023. https://doi.org/10.1007/s12221-023-00122-x. ieee: 'E. Penner, I. Caylak, and R. Mahnken, “Experimental Investigations of Carbon Fiber Reinforced Polymer Composites and Their Constituents to Determine Their Elastic Material Properties and Complementary Inhomogeneous Experiments with Local Strain Considerations,” Fibers and Polymers, 2023, doi: 10.1007/s12221-023-00122-x.' mla: Penner, Eduard, et al. “Experimental Investigations of Carbon Fiber Reinforced Polymer Composites and Their Constituents to Determine Their Elastic Material Properties and Complementary Inhomogeneous Experiments with Local Strain Considerations.” Fibers and Polymers, Springer Science and Business Media LLC, 2023, doi:10.1007/s12221-023-00122-x. short: E. Penner, I. Caylak, R. Mahnken, Fibers and Polymers (2023). date_created: 2023-02-16T12:37:11Z date_updated: 2023-03-24T08:42:33Z department: - _id: '9' - _id: '154' - _id: '321' doi: 10.1007/s12221-023-00122-x keyword: - Polymers and Plastics - General Chemical Engineering - General Chemistry language: - iso: eng publication: Fibers and Polymers publication_identifier: issn: - 1229-9197 - 1875-0052 publication_status: published publisher: Springer Science and Business Media LLC status: public title: Experimental Investigations of Carbon Fiber Reinforced Polymer Composites and Their Constituents to Determine Their Elastic Material Properties and Complementary Inhomogeneous Experiments with Local Strain Considerations type: journal_article user_id: '335' year: '2023' ... --- _id: '43128' article_number: '118460' author: - first_name: Moritz Johannes full_name: Rüther, Moritz Johannes id: '38188' last_name: Rüther - first_name: Sven Helge full_name: Klippstein, Sven Helge id: '71545' last_name: Klippstein - first_name: SathishKumar full_name: Ponusamy, SathishKumar id: '77383' last_name: Ponusamy - first_name: Torben full_name: Rüther, Torben id: '76950' last_name: Rüther - first_name: Hans-Joachim full_name: Schmid, Hans-Joachim id: '464' last_name: Schmid orcid: 000-0001-8590-1921 citation: ama: Rüther MJ, Klippstein SH, Ponusamy S, Rüther T, Schmid H-J. Flowability of polymer powders at elevated temperatures for additive manufacturing. Powder Technology. 2023;422. doi:10.1016/j.powtec.2023.118460 apa: Rüther, M. J., Klippstein, S. H., Ponusamy, S., Rüther, T., & Schmid, H.-J. (2023). Flowability of polymer powders at elevated temperatures for additive manufacturing. Powder Technology, 422, Article 118460. https://doi.org/10.1016/j.powtec.2023.118460 bibtex: '@article{Rüther_Klippstein_Ponusamy_Rüther_Schmid_2023, title={Flowability of polymer powders at elevated temperatures for additive manufacturing}, volume={422}, DOI={10.1016/j.powtec.2023.118460}, number={118460}, journal={Powder Technology}, publisher={Elsevier BV}, author={Rüther, Moritz Johannes and Klippstein, Sven Helge and Ponusamy, SathishKumar and Rüther, Torben and Schmid, Hans-Joachim}, year={2023} }' chicago: Rüther, Moritz Johannes, Sven Helge Klippstein, SathishKumar Ponusamy, Torben Rüther, and Hans-Joachim Schmid. “Flowability of Polymer Powders at Elevated Temperatures for Additive Manufacturing.” Powder Technology 422 (2023). https://doi.org/10.1016/j.powtec.2023.118460. ieee: 'M. J. Rüther, S. H. Klippstein, S. Ponusamy, T. Rüther, and H.-J. Schmid, “Flowability of polymer powders at elevated temperatures for additive manufacturing,” Powder Technology, vol. 422, Art. no. 118460, 2023, doi: 10.1016/j.powtec.2023.118460.' mla: Rüther, Moritz Johannes, et al. “Flowability of Polymer Powders at Elevated Temperatures for Additive Manufacturing.” Powder Technology, vol. 422, 118460, Elsevier BV, 2023, doi:10.1016/j.powtec.2023.118460. short: M.J. Rüther, S.H. Klippstein, S. Ponusamy, T. Rüther, H.-J. Schmid, Powder Technology 422 (2023). date_created: 2023-03-27T19:57:12Z date_updated: 2023-04-27T12:33:28Z department: - _id: '150' - _id: '624' - _id: '219' doi: 10.1016/j.powtec.2023.118460 intvolume: ' 422' keyword: - General Chemical Engineering language: - iso: eng publication: Powder Technology publication_identifier: issn: - 0032-5910 publication_status: published publisher: Elsevier BV quality_controlled: '1' status: public title: Flowability of polymer powders at elevated temperatures for additive manufacturing type: journal_article user_id: '71545' volume: 422 year: '2023' ... --- _id: '42517' author: - first_name: Kosti full_name: Tapio, Kosti last_name: Tapio - first_name: Charlotte full_name: Kielar, Charlotte last_name: Kielar - first_name: Johannes M. full_name: Parikka, Johannes M. last_name: Parikka - first_name: Adrian full_name: Keller, Adrian id: '48864' last_name: Keller orcid: 0000-0001-7139-3110 - first_name: Heini full_name: Järvinen, Heini last_name: Järvinen - first_name: Karim full_name: Fahmy, Karim last_name: Fahmy - first_name: J. Jussi full_name: Toppari, J. Jussi last_name: Toppari citation: ama: Tapio K, Kielar C, Parikka JM, et al. Large-Scale Formation of DNA Origami Lattices on Silicon. Chemistry of Materials. 2023;35:1961–1971. doi:10.1021/acs.chemmater.2c03190 apa: Tapio, K., Kielar, C., Parikka, J. M., Keller, A., Järvinen, H., Fahmy, K., & Toppari, J. J. (2023). Large-Scale Formation of DNA Origami Lattices on Silicon. Chemistry of Materials, 35, 1961–1971. https://doi.org/10.1021/acs.chemmater.2c03190 bibtex: '@article{Tapio_Kielar_Parikka_Keller_Järvinen_Fahmy_Toppari_2023, title={Large-Scale Formation of DNA Origami Lattices on Silicon}, volume={35}, DOI={10.1021/acs.chemmater.2c03190}, journal={Chemistry of Materials}, publisher={American Chemical Society (ACS)}, author={Tapio, Kosti and Kielar, Charlotte and Parikka, Johannes M. and Keller, Adrian and Järvinen, Heini and Fahmy, Karim and Toppari, J. Jussi}, year={2023}, pages={1961–1971} }' chicago: 'Tapio, Kosti, Charlotte Kielar, Johannes M. Parikka, Adrian Keller, Heini Järvinen, Karim Fahmy, and J. Jussi Toppari. “Large-Scale Formation of DNA Origami Lattices on Silicon.” Chemistry of Materials 35 (2023): 1961–1971. https://doi.org/10.1021/acs.chemmater.2c03190.' ieee: 'K. Tapio et al., “Large-Scale Formation of DNA Origami Lattices on Silicon,” Chemistry of Materials, vol. 35, pp. 1961–1971, 2023, doi: 10.1021/acs.chemmater.2c03190.' mla: Tapio, Kosti, et al. “Large-Scale Formation of DNA Origami Lattices on Silicon.” Chemistry of Materials, vol. 35, American Chemical Society (ACS), 2023, pp. 1961–1971, doi:10.1021/acs.chemmater.2c03190. short: K. Tapio, C. Kielar, J.M. Parikka, A. Keller, H. Järvinen, K. Fahmy, J.J. Toppari, Chemistry of Materials 35 (2023) 1961–1971. date_created: 2023-02-27T07:42:33Z date_updated: 2023-05-05T10:50:56Z department: - _id: '302' doi: 10.1021/acs.chemmater.2c03190 intvolume: ' 35' keyword: - Materials Chemistry - General Chemical Engineering - General Chemistry language: - iso: eng page: 1961–1971 publication: Chemistry of Materials publication_identifier: issn: - 0897-4756 - 1520-5002 publication_status: published publisher: American Chemical Society (ACS) status: public title: Large-Scale Formation of DNA Origami Lattices on Silicon type: journal_article user_id: '48864' volume: 35 year: '2023' ... --- _id: '44837' abstract: - lang: eng text: Hydrothermal carbonization (HTC) is an efficient thermochemical method for the conversion of organic feedstock to carbonaceous solids. HTC of different saccharides is known to produce microspheres (MS) with mostly Gaussian size distribution, which are utilized as functional materials in various applications, both as pristine MS and as a precursor for hard carbon MS. Although the average size of the MS can be influenced by adjusting the process parameters, there is no reliable mechanism to affect their size distribution. Our results demonstrate that HTC of trehalose, in contrast to other saccharides, results in a distinctly bimodal sphere diameter distribution consisting of small spheres with diameters of (2.1 ± 0.2) μm and of large spheres with diameters of (10.4 ± 2.6) μm. Remarkably, after pyrolytic post-carbonization at 1000 °C the MS develop a multimodal pore size distribution with abundant macropores > 100 nm, mesopores > 10 nm and micropores < 2 nm, which were examined by small-angle X-ray scattering and visualized by charge-compensated helium ion microscopy. The bimodal size distribution and hierarchical porosity provide an extraordinary set of properties and potential variables for the tailored synthesis of hierarchical porous carbons, making trehalose-derived hard carbon MS a highly promising material for applications in catalysis, filtration, and energy storage devices. author: - first_name: Martin full_name: Wortmann, Martin last_name: Wortmann - first_name: Waldemar full_name: Keil, Waldemar last_name: Keil - first_name: Elise full_name: Diestelhorst, Elise last_name: Diestelhorst - first_name: Michael full_name: Westphal, Michael last_name: Westphal - first_name: René full_name: Haverkamp, René last_name: Haverkamp - first_name: Bennet full_name: Brockhagen, Bennet last_name: Brockhagen - first_name: Jan full_name: Biedinger, Jan last_name: Biedinger - first_name: Laila full_name: Bondzio, Laila last_name: Bondzio - first_name: Christian full_name: Weinberger, Christian id: '11848' last_name: Weinberger - first_name: Dominik full_name: Baier, Dominik last_name: Baier - first_name: Michael full_name: Tiemann, Michael id: '23547' last_name: Tiemann orcid: 0000-0003-1711-2722 - first_name: Andreas full_name: Hütten, Andreas last_name: Hütten - first_name: Thomas full_name: Hellweg, Thomas last_name: Hellweg - first_name: Günter full_name: Reiss, Günter last_name: Reiss - first_name: Claudia full_name: Schmidt, Claudia last_name: Schmidt - first_name: Klaus full_name: Sattler, Klaus last_name: Sattler - first_name: Natalie full_name: Frese, Natalie last_name: Frese citation: ama: Wortmann M, Keil W, Diestelhorst E, et al. Hard carbon microspheres with bimodal size distribution and hierarchical porosity via hydrothermal carbonization of trehalose. RSC Advances. 2023;13(21):14181-14189. doi:10.1039/d3ra01301d apa: Wortmann, M., Keil, W., Diestelhorst, E., Westphal, M., Haverkamp, R., Brockhagen, B., Biedinger, J., Bondzio, L., Weinberger, C., Baier, D., Tiemann, M., Hütten, A., Hellweg, T., Reiss, G., Schmidt, C., Sattler, K., & Frese, N. (2023). Hard carbon microspheres with bimodal size distribution and hierarchical porosity via hydrothermal carbonization of trehalose. RSC Advances, 13(21), 14181–14189. https://doi.org/10.1039/d3ra01301d bibtex: '@article{Wortmann_Keil_Diestelhorst_Westphal_Haverkamp_Brockhagen_Biedinger_Bondzio_Weinberger_Baier_et al._2023, title={Hard carbon microspheres with bimodal size distribution and hierarchical porosity via hydrothermal carbonization of trehalose}, volume={13}, DOI={10.1039/d3ra01301d}, number={21}, journal={RSC Advances}, publisher={Royal Society of Chemistry (RSC)}, author={Wortmann, Martin and Keil, Waldemar and Diestelhorst, Elise and Westphal, Michael and Haverkamp, René and Brockhagen, Bennet and Biedinger, Jan and Bondzio, Laila and Weinberger, Christian and Baier, Dominik and et al.}, year={2023}, pages={14181–14189} }' chicago: 'Wortmann, Martin, Waldemar Keil, Elise Diestelhorst, Michael Westphal, René Haverkamp, Bennet Brockhagen, Jan Biedinger, et al. “Hard Carbon Microspheres with Bimodal Size Distribution and Hierarchical Porosity via Hydrothermal Carbonization of Trehalose.” RSC Advances 13, no. 21 (2023): 14181–89. https://doi.org/10.1039/d3ra01301d.' ieee: 'M. Wortmann et al., “Hard carbon microspheres with bimodal size distribution and hierarchical porosity via hydrothermal carbonization of trehalose,” RSC Advances, vol. 13, no. 21, pp. 14181–14189, 2023, doi: 10.1039/d3ra01301d.' mla: Wortmann, Martin, et al. “Hard Carbon Microspheres with Bimodal Size Distribution and Hierarchical Porosity via Hydrothermal Carbonization of Trehalose.” RSC Advances, vol. 13, no. 21, Royal Society of Chemistry (RSC), 2023, pp. 14181–89, doi:10.1039/d3ra01301d. short: M. Wortmann, W. Keil, E. Diestelhorst, M. Westphal, R. Haverkamp, B. Brockhagen, J. Biedinger, L. Bondzio, C. Weinberger, D. Baier, M. Tiemann, A. Hütten, T. Hellweg, G. Reiss, C. Schmidt, K. Sattler, N. Frese, RSC Advances 13 (2023) 14181–14189. date_created: 2023-05-12T07:16:15Z date_updated: 2023-05-12T07:18:51Z department: - _id: '35' - _id: '2' - _id: '307' doi: 10.1039/d3ra01301d intvolume: ' 13' issue: '21' keyword: - General Chemical Engineering - General Chemistry language: - iso: eng main_file_link: - open_access: '1' oa: '1' page: 14181-14189 publication: RSC Advances publication_identifier: issn: - 2046-2069 publication_status: published publisher: Royal Society of Chemistry (RSC) quality_controlled: '1' status: public title: Hard carbon microspheres with bimodal size distribution and hierarchical porosity via hydrothermal carbonization of trehalose type: journal_article user_id: '23547' volume: 13 year: '2023' ... --- _id: '46278' abstract: - lang: eng text: 'Site-controlled Ga droplets on AlGaAs substrates are fabricated using area-selective deposition of Ga through apertures in a mask during molecular beam epitaxy (MBE). The Ga droplets can be crystallized into GaAs quantum dots using a crystallization step under As flux. In order to model the complex process, including the masked deposition of the droplets and a reduction of their number during a thermal annealing step, a multiscale kinetic Monte Carlo (mkMC) simulation of self-assembled Ga droplet formation on AlGaAs is expanded for area-selective deposition. The simulation has only two free model parameters: the activation energy for surface diffusion and the activation energy for thermal escape of adatoms from a droplet. Simulated droplet numbers within the opening of the aperture agree quantitatively with the experimental results down to the perfect site-control, with one droplet per aperture. However, the model parameters are different compared to those of the self-assembled droplet growth. We attribute this to the presence of the mask in close proximity to the surface, which modifies the local process temperature and the As background. This approach also explains the dependence of the model parameters on the size of the aperture.' article_number: '466' author: - first_name: Stefan full_name: Feddersen, Stefan last_name: Feddersen - first_name: Viktoryia full_name: Zolatanosha, Viktoryia last_name: Zolatanosha - first_name: Ahmed full_name: Alshaikh, Ahmed last_name: Alshaikh - first_name: Dirk full_name: Reuter, Dirk id: '37763' last_name: Reuter - first_name: Christian full_name: Heyn, Christian last_name: Heyn citation: ama: Feddersen S, Zolatanosha V, Alshaikh A, Reuter D, Heyn C. Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets. Nanomaterials. 2023;13(3). doi:10.3390/nano13030466 apa: Feddersen, S., Zolatanosha, V., Alshaikh, A., Reuter, D., & Heyn, C. (2023). Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets. Nanomaterials, 13(3), Article 466. https://doi.org/10.3390/nano13030466 bibtex: '@article{Feddersen_Zolatanosha_Alshaikh_Reuter_Heyn_2023, title={Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets}, volume={13}, DOI={10.3390/nano13030466}, number={3466}, journal={Nanomaterials}, publisher={MDPI AG}, author={Feddersen, Stefan and Zolatanosha, Viktoryia and Alshaikh, Ahmed and Reuter, Dirk and Heyn, Christian}, year={2023} }' chicago: Feddersen, Stefan, Viktoryia Zolatanosha, Ahmed Alshaikh, Dirk Reuter, and Christian Heyn. “Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets.” Nanomaterials 13, no. 3 (2023). https://doi.org/10.3390/nano13030466. ieee: 'S. Feddersen, V. Zolatanosha, A. Alshaikh, D. Reuter, and C. Heyn, “Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets,” Nanomaterials, vol. 13, no. 3, Art. no. 466, 2023, doi: 10.3390/nano13030466.' mla: Feddersen, Stefan, et al. “Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets.” Nanomaterials, vol. 13, no. 3, 466, MDPI AG, 2023, doi:10.3390/nano13030466. short: S. Feddersen, V. Zolatanosha, A. Alshaikh, D. Reuter, C. Heyn, Nanomaterials 13 (2023). date_created: 2023-08-03T11:13:28Z date_updated: 2023-08-03T11:14:10Z department: - _id: '15' - _id: '230' doi: 10.3390/nano13030466 intvolume: ' 13' issue: '3' keyword: - General Materials Science - General Chemical Engineering language: - iso: eng publication: Nanomaterials publication_identifier: issn: - 2079-4991 publication_status: published publisher: MDPI AG status: public title: Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets type: journal_article user_id: '42514' volume: 13 year: '2023' ... --- _id: '48580' abstract: - lang: eng text: "Abstract\r\n Sandwich packings represent new separation column internals, with a potential to intensify mass transfer. They comprise two conventional structured packings with different specific geometrical surface areas. In this work, the complex fluid dynamics in sandwich packings is modeled using a novel approach based on a one-dimensional, steady momentum balance of the liquid and gas phases. The interactions between the three present phases (gas, liquid, and solid) are considered by closures incorporated into the momentum balance. The formulation of these closures is derived from two fluid-dynamic analogies for the film and froth flow patterns. The adjustable parameters in the closures are regressed for the film flow using dry pressure drop measurements and liquid hold-up data in trickle flow conditions. For the froth flow, the tuning parameters are fitted to overall pressure drop measurements and local liquid hold-up data acquired from ultra-fast X-ray tomography (UFXCT). The model predicts liquid hold-up and pressure drop data with an average relative deviation of 16.4 % and 19 %, respectively. Compared to previous fluid dynamic models for sandwich packings, the number of adjustable parameters could be reduced while maintaining comparable accuracy." author: - first_name: Patrick full_name: Franke, Patrick id: '93922' last_name: Franke - first_name: Iman full_name: Shabanilemraski, Iman last_name: Shabanilemraski - first_name: Markus full_name: Schubert, Markus last_name: Schubert - first_name: Uwe full_name: Hampel, Uwe last_name: Hampel - first_name: Eugeny Y. full_name: Kenig, Eugeny Y. id: '665' last_name: Kenig citation: ama: Franke P, Shabanilemraski I, Schubert M, Hampel U, Kenig EY. A new approach to model the fluid dynamics in sandwich packings. Chemical Product and Process Modeling. 2023;0(0). doi:10.1515/cppm-2023-0054 apa: Franke, P., Shabanilemraski, I., Schubert, M., Hampel, U., & Kenig, E. Y. (2023). A new approach to model the fluid dynamics in sandwich packings. Chemical Product and Process Modeling, 0(0). https://doi.org/10.1515/cppm-2023-0054 bibtex: '@article{Franke_Shabanilemraski_Schubert_Hampel_Kenig_2023, title={A new approach to model the fluid dynamics in sandwich packings}, volume={0}, DOI={10.1515/cppm-2023-0054}, number={0}, journal={Chemical Product and Process Modeling}, publisher={Walter de Gruyter GmbH}, author={Franke, Patrick and Shabanilemraski, Iman and Schubert, Markus and Hampel, Uwe and Kenig, Eugeny Y.}, year={2023} }' chicago: Franke, Patrick, Iman Shabanilemraski, Markus Schubert, Uwe Hampel, and Eugeny Y. Kenig. “A New Approach to Model the Fluid Dynamics in Sandwich Packings.” Chemical Product and Process Modeling 0, no. 0 (2023). https://doi.org/10.1515/cppm-2023-0054. ieee: 'P. Franke, I. Shabanilemraski, M. Schubert, U. Hampel, and E. Y. Kenig, “A new approach to model the fluid dynamics in sandwich packings,” Chemical Product and Process Modeling, vol. 0, no. 0, 2023, doi: 10.1515/cppm-2023-0054.' mla: Franke, Patrick, et al. “A New Approach to Model the Fluid Dynamics in Sandwich Packings.” Chemical Product and Process Modeling, vol. 0, no. 0, Walter de Gruyter GmbH, 2023, doi:10.1515/cppm-2023-0054. short: P. Franke, I. Shabanilemraski, M. Schubert, U. Hampel, E.Y. Kenig, Chemical Product and Process Modeling 0 (2023). date_created: 2023-10-31T18:43:20Z date_updated: 2025-02-07T11:29:15Z doi: 10.1515/cppm-2023-0054 issue: '0' keyword: - Modeling and Simulation - General Chemical Engineering language: - iso: eng publication: Chemical Product and Process Modeling publication_identifier: issn: - 1934-2659 publication_status: published publisher: Walter de Gruyter GmbH quality_controlled: '1' status: public title: A new approach to model the fluid dynamics in sandwich packings type: journal_article user_id: '93922' volume: '0' year: '2023' ... --- _id: '37200' abstract: - lang: eng text: (1) This work answers the question of whether and to what extent there is a significant difference in mechanical properties when different additive manufacturing processes are applied to the material 1.2709. The Laser-Powder-Bed-Fusion (L-PBF) and Laser-Metal-Deposition (LMD) processes are considered, as they differ fundamentally in the way a part is manufactured. (2) Known process parameters for low-porosity parts were used to fabricate tensile strength specimens. Half of the specimens were heat-treated, and all specimens were tested for mechanical properties in a quasi-static tensile test. In addition, the material hardness was determined. (3) It was found that, firstly, heat treatment resulted in a sharp increase in mechanical properties such as hardness, elastic modulus, yield strength and ultimate strength. In addition to the increase in these properties, the elongation at break also decreases significantly after heat treatment. The choice of process, on the other hand, does not give either process a clear advantage in terms of mechanical properties but shows that it is necessary to consider the essential mechanical properties for a desired application. article_number: '157' article_type: original author: - first_name: Stefan full_name: Gnaase, Stefan id: '25730' last_name: Gnaase - first_name: Dennis full_name: Niggemeyer, Dennis id: '77214' last_name: Niggemeyer - first_name: Dennis full_name: Lehnert, Dennis id: '90491' last_name: Lehnert - first_name: Christian full_name: Bödger, Christian id: '93904' last_name: Bödger - first_name: Thomas full_name: Tröster, Thomas id: '553' last_name: Tröster citation: ama: Gnaase S, Niggemeyer D, Lehnert D, Bödger C, Tröster T. Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD &amp; L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709. Crystals. 2023;13(2). doi:10.3390/cryst13020157 apa: Gnaase, S., Niggemeyer, D., Lehnert, D., Bödger, C., & Tröster, T. (2023). Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD &amp; L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709. Crystals, 13(2), Article 157. https://doi.org/10.3390/cryst13020157 bibtex: '@article{Gnaase_Niggemeyer_Lehnert_Bödger_Tröster_2023, title={Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD &amp; L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709}, volume={13}, DOI={10.3390/cryst13020157}, number={2157}, journal={Crystals}, publisher={MDPI AG}, author={Gnaase, Stefan and Niggemeyer, Dennis and Lehnert, Dennis and Bödger, Christian and Tröster, Thomas}, year={2023} }' chicago: Gnaase, Stefan, Dennis Niggemeyer, Dennis Lehnert, Christian Bödger, and Thomas Tröster. “Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD &amp; L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709.” Crystals 13, no. 2 (2023). https://doi.org/10.3390/cryst13020157. ieee: 'S. Gnaase, D. Niggemeyer, D. Lehnert, C. Bödger, and T. Tröster, “Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD &amp; L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709,” Crystals, vol. 13, no. 2, Art. no. 157, 2023, doi: 10.3390/cryst13020157.' mla: Gnaase, Stefan, et al. “Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD &amp; L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709.” Crystals, vol. 13, no. 2, 157, MDPI AG, 2023, doi:10.3390/cryst13020157. short: S. Gnaase, D. Niggemeyer, D. Lehnert, C. Bödger, T. Tröster, Crystals 13 (2023). date_created: 2023-01-18T05:44:59Z date_updated: 2025-03-18T12:45:57Z ddc: - '670' department: - _id: '149' - _id: '9' - _id: '321' doi: 10.3390/cryst13020157 file: - access_level: closed content_type: application/pdf creator: cboedger date_created: 2024-11-22T15:55:07Z date_updated: 2024-11-22T15:55:07Z file_id: '57334' file_name: crystals-13-00157.pdf file_size: 5838834 relation: main_file success: 1 file_date_updated: 2024-11-22T15:55:07Z intvolume: ' 13' issue: '2' keyword: - Inorganic Chemistry - Condensed Matter Physics - General Materials Science - General Chemical Engineering language: - iso: eng publication: Crystals publication_identifier: issn: - 2073-4352 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD & L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709 type: journal_article user_id: '90491' volume: 13 year: '2023' ... --- _id: '53079' article_type: original author: - first_name: Thomas full_name: Bierkandt, Thomas last_name: Bierkandt - first_name: Patrick full_name: Hemberger, Patrick last_name: Hemberger - first_name: Patrick full_name: Oßwald, Patrick last_name: Oßwald - first_name: Nina full_name: Gaiser, Nina last_name: Gaiser - first_name: Martin full_name: Hoener, Martin last_name: Hoener - first_name: Dominik full_name: Krüger, Dominik last_name: Krüger - first_name: Tina full_name: Kasper, Tina id: '94562' last_name: Kasper orcid: '0000-0003-3993-5316 ' - first_name: Markus full_name: Köhler, Markus last_name: Köhler citation: ama: Bierkandt T, Hemberger P, Oßwald P, et al. A combustion chemistry study of tetramethylethylene in a laminar premixed low-pressure hydrogen flame. Proceedings of the Combustion Institute. 2023;39(2):1699-1708. doi:10.1016/j.proci.2022.07.205 apa: Bierkandt, T., Hemberger, P., Oßwald, P., Gaiser, N., Hoener, M., Krüger, D., Kasper, T., & Köhler, M. (2023). A combustion chemistry study of tetramethylethylene in a laminar premixed low-pressure hydrogen flame. Proceedings of the Combustion Institute, 39(2), 1699–1708. https://doi.org/10.1016/j.proci.2022.07.205 bibtex: '@article{Bierkandt_Hemberger_Oßwald_Gaiser_Hoener_Krüger_Kasper_Köhler_2023, title={A combustion chemistry study of tetramethylethylene in a laminar premixed low-pressure hydrogen flame}, volume={39}, DOI={10.1016/j.proci.2022.07.205}, number={2}, journal={Proceedings of the Combustion Institute}, publisher={Elsevier BV}, author={Bierkandt, Thomas and Hemberger, Patrick and Oßwald, Patrick and Gaiser, Nina and Hoener, Martin and Krüger, Dominik and Kasper, Tina and Köhler, Markus}, year={2023}, pages={1699–1708} }' chicago: 'Bierkandt, Thomas, Patrick Hemberger, Patrick Oßwald, Nina Gaiser, Martin Hoener, Dominik Krüger, Tina Kasper, and Markus Köhler. “A Combustion Chemistry Study of Tetramethylethylene in a Laminar Premixed Low-Pressure Hydrogen Flame.” Proceedings of the Combustion Institute 39, no. 2 (2023): 1699–1708. https://doi.org/10.1016/j.proci.2022.07.205.' ieee: 'T. Bierkandt et al., “A combustion chemistry study of tetramethylethylene in a laminar premixed low-pressure hydrogen flame,” Proceedings of the Combustion Institute, vol. 39, no. 2, pp. 1699–1708, 2023, doi: 10.1016/j.proci.2022.07.205.' mla: Bierkandt, Thomas, et al. “A Combustion Chemistry Study of Tetramethylethylene in a Laminar Premixed Low-Pressure Hydrogen Flame.” Proceedings of the Combustion Institute, vol. 39, no. 2, Elsevier BV, 2023, pp. 1699–708, doi:10.1016/j.proci.2022.07.205. short: T. Bierkandt, P. Hemberger, P. Oßwald, N. Gaiser, M. Hoener, D. Krüger, T. Kasper, M. Köhler, Proceedings of the Combustion Institute 39 (2023) 1699–1708. date_created: 2024-03-27T16:16:17Z date_updated: 2025-07-08T10:35:30Z department: - _id: '728' doi: 10.1016/j.proci.2022.07.205 intvolume: ' 39' issue: '2' keyword: - Physical and Theoretical Chemistry - Mechanical Engineering - General Chemical Engineering language: - iso: eng page: 1699-1708 publication: Proceedings of the Combustion Institute publication_identifier: issn: - 1540-7489 publication_status: published publisher: Elsevier BV quality_controlled: '1' status: public title: A combustion chemistry study of tetramethylethylene in a laminar premixed low-pressure hydrogen flame type: journal_article user_id: '94562' volume: 39 year: '2023' ...