--- _id: '60913' abstract: - lang: eng text: ABSTRACTSpin‐coated polylactide (PLA) thin films were exposed to nitrogen plasma for varying time intervals. The progressive etching of the PLA film in direct contact with the nitrogen plasma was monitored in situ using polarization modulated infrared reflection absorption spectroscopy (PM‐IRRAS). No appreciative changes in composition were seen with PM‐IRRAS, indicating that the etching did not significantly affect the bulk composition. Atomic force microscopy characterization of the plasma‐etched films showed that the PLA films are homogeneously etched. Subsequent ex situ XPS analysis of the treated surface revealed the presence of C‐N bonds in the surface‐near region that could be associated with amino and/or amide surface species. PLA films were also alternatively exposed to nitrogen ion beams produced by an electron‐cyclotron‐resonance (ECR) plasma source and were investigated in vacuo by XPS. This treatment revealed the partial substitution of surface oxygen species by nitrogen, resulting in a similar surface modification as in the plasma case. The comparison of XPS data and water contact angle studies suggest that the activated surfaces show a reorientation of macromolecular fragments in the surface‐near region depending on the polarity of the phase with which they are in contact. Under ultra‐high vacuum (UHV) conditions, the surface tends to lower its surface energy, while in contact with the aqueous phase, subsurface polar groups orientate outwards, which enables the formation of hydrogen bonds. author: - first_name: Sandra Alicja full_name: Golebiowska, Sandra Alicja id: '69524' last_name: Golebiowska orcid: 0009-0001-1261-9455 - first_name: Markus full_name: Voigt, Markus id: '15182' last_name: Voigt - first_name: Teresa full_name: de los Arcos, Teresa last_name: de los Arcos - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier citation: ama: Golebiowska SA, Voigt M, de los Arcos T, Grundmeier G. In Situ PM‐IRRAS and XPS Analysis of Nitrogen Plasma Surface Modification of Polylactide Thin Films. Surface and Interface Analysis. 2025;57(7):499-509. doi:10.1002/sia.7406 apa: Golebiowska, S. A., Voigt, M., de los Arcos, T., & Grundmeier, G. (2025). In Situ PM‐IRRAS and XPS Analysis of Nitrogen Plasma Surface Modification of Polylactide Thin Films. Surface and Interface Analysis, 57(7), 499–509. https://doi.org/10.1002/sia.7406 bibtex: '@article{Golebiowska_Voigt_de los Arcos_Grundmeier_2025, title={In Situ PM‐IRRAS and XPS Analysis of Nitrogen Plasma Surface Modification of Polylactide Thin Films}, volume={57}, DOI={10.1002/sia.7406}, number={7}, journal={Surface and Interface Analysis}, publisher={Wiley}, author={Golebiowska, Sandra Alicja and Voigt, Markus and de los Arcos, Teresa and Grundmeier, Guido}, year={2025}, pages={499–509} }' chicago: 'Golebiowska, Sandra Alicja, Markus Voigt, Teresa de los Arcos, and Guido Grundmeier. “In Situ PM‐IRRAS and XPS Analysis of Nitrogen Plasma Surface Modification of Polylactide Thin Films.” Surface and Interface Analysis 57, no. 7 (2025): 499–509. https://doi.org/10.1002/sia.7406.' ieee: 'S. A. Golebiowska, M. Voigt, T. de los Arcos, and G. Grundmeier, “In Situ PM‐IRRAS and XPS Analysis of Nitrogen Plasma Surface Modification of Polylactide Thin Films,” Surface and Interface Analysis, vol. 57, no. 7, pp. 499–509, 2025, doi: 10.1002/sia.7406.' mla: Golebiowska, Sandra Alicja, et al. “In Situ PM‐IRRAS and XPS Analysis of Nitrogen Plasma Surface Modification of Polylactide Thin Films.” Surface and Interface Analysis, vol. 57, no. 7, Wiley, 2025, pp. 499–509, doi:10.1002/sia.7406. short: S.A. Golebiowska, M. Voigt, T. de los Arcos, G. Grundmeier, Surface and Interface Analysis 57 (2025) 499–509. date_created: 2025-08-11T11:45:55Z date_updated: 2025-12-08T08:13:24Z department: - _id: '302' doi: 10.1002/sia.7406 intvolume: ' 57' issue: '7' language: - iso: eng page: 499-509 project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Surface and Interface Analysis publication_identifier: issn: - 0142-2421 - 1096-9918 publication_status: published publisher: Wiley status: public title: In Situ PM‐IRRAS and XPS Analysis of Nitrogen Plasma Surface Modification of Polylactide Thin Films type: journal_article user_id: '69524' volume: 57 year: '2025' ... --- _id: '62236' abstract: - lang: eng text: AbstractDue to its excellent biocompatibility, pure iron is a very promising implant material, but often features corrosion rates that are too low. Using additive manufacturing and modified powders the microstructure and, thus, the material properties, e.g., the corrosion properties, can be tailored for specific applications. Within the scope of this study, pure iron powder was modified with different amounts of CeO2 or Fe2O3 nanoparticles and subsequently processed by Electron Beam Powder Bed Fusion (PBF-EB/M). The corrosion-fatigue behavior of CeO2 and Fe2O3 modified iron was investigated using rotation bending tests under the influence of simulated body fluid (m-SBF). While the modification using Fe2O3 showed reduced fatigue and corrosion-fatigue strengths, it could be demonstrated that the modification with CeO2 is characterized by improved fatigue properties. The superior fatigue properties in air are attributed to the positive impact of dispersion strengthening. Additionally, an increased degradation rate compared to pure iron could be observed, eventually promoting an earlier failure of the specimens in the corrosion fatigue tests. article_number: '49' author: - first_name: Steffen full_name: Wackenrohr, Steffen last_name: Wackenrohr - first_name: Christof Johannes Jaime full_name: Torrent, Christof Johannes Jaime last_name: Torrent - first_name: Sebastian full_name: Herbst, Sebastian last_name: Herbst - first_name: Florian full_name: Nürnberger, Florian last_name: Nürnberger - first_name: Philipp full_name: Krooss, Philipp last_name: Krooss - first_name: Johanna-Maria full_name: Frenck, Johanna-Maria last_name: Frenck - first_name: Christoph full_name: Ebbert, Christoph id: '7266' last_name: Ebbert - first_name: Markus full_name: Voigt, Markus id: '15182' last_name: Voigt - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier - first_name: Thomas full_name: Niendorf, Thomas last_name: Niendorf - first_name: Hans Jürgen full_name: Maier, Hans Jürgen last_name: Maier citation: ama: Wackenrohr S, Torrent CJJ, Herbst S, et al. Corrosion fatigue behavior of nanoparticle modified iron processed by electron powder bed fusion. npj Materials Degradation. 2024;8(1). doi:10.1038/s41529-024-00470-w apa: Wackenrohr, S., Torrent, C. J. J., Herbst, S., Nürnberger, F., Krooss, P., Frenck, J.-M., Ebbert, C., Voigt, M., Grundmeier, G., Niendorf, T., & Maier, H. J. (2024). Corrosion fatigue behavior of nanoparticle modified iron processed by electron powder bed fusion. Npj Materials Degradation, 8(1), Article 49. https://doi.org/10.1038/s41529-024-00470-w bibtex: '@article{Wackenrohr_Torrent_Herbst_Nürnberger_Krooss_Frenck_Ebbert_Voigt_Grundmeier_Niendorf_et al._2024, title={Corrosion fatigue behavior of nanoparticle modified iron processed by electron powder bed fusion}, volume={8}, DOI={10.1038/s41529-024-00470-w}, number={149}, journal={npj Materials Degradation}, publisher={Springer Science and Business Media LLC}, author={Wackenrohr, Steffen and Torrent, Christof Johannes Jaime and Herbst, Sebastian and Nürnberger, Florian and Krooss, Philipp and Frenck, Johanna-Maria and Ebbert, Christoph and Voigt, Markus and Grundmeier, Guido and Niendorf, Thomas and et al.}, year={2024} }' chicago: Wackenrohr, Steffen, Christof Johannes Jaime Torrent, Sebastian Herbst, Florian Nürnberger, Philipp Krooss, Johanna-Maria Frenck, Christoph Ebbert, et al. “Corrosion Fatigue Behavior of Nanoparticle Modified Iron Processed by Electron Powder Bed Fusion.” Npj Materials Degradation 8, no. 1 (2024). https://doi.org/10.1038/s41529-024-00470-w. ieee: 'S. Wackenrohr et al., “Corrosion fatigue behavior of nanoparticle modified iron processed by electron powder bed fusion,” npj Materials Degradation, vol. 8, no. 1, Art. no. 49, 2024, doi: 10.1038/s41529-024-00470-w.' mla: Wackenrohr, Steffen, et al. “Corrosion Fatigue Behavior of Nanoparticle Modified Iron Processed by Electron Powder Bed Fusion.” Npj Materials Degradation, vol. 8, no. 1, 49, Springer Science and Business Media LLC, 2024, doi:10.1038/s41529-024-00470-w. short: S. Wackenrohr, C.J.J. Torrent, S. Herbst, F. Nürnberger, P. Krooss, J.-M. Frenck, C. Ebbert, M. Voigt, G. Grundmeier, T. Niendorf, H.J. Maier, Npj Materials Degradation 8 (2024). date_created: 2025-11-18T12:11:06Z date_updated: 2025-11-18T12:11:30Z department: - _id: '35' - _id: '302' - _id: '321' doi: 10.1038/s41529-024-00470-w intvolume: ' 8' issue: '1' language: - iso: eng publication: npj Materials Degradation publication_identifier: issn: - 2397-2106 publication_status: published publisher: Springer Science and Business Media LLC status: public title: Corrosion fatigue behavior of nanoparticle modified iron processed by electron powder bed fusion type: journal_article user_id: '7266' volume: 8 year: '2024' ... --- _id: '30922' abstract: - lang: eng text: AbstractPure iron is very attractive as a biodegradable implant material due to its high biocompatibility. In combination with additive manufacturing, which facilitates great flexibility of the implant design, it is possible to selectively adjust the microstructure of the material in the process, thereby control the corrosion and fatigue behavior. In the present study, conventional hot-rolled (HR) pure iron is compared to pure iron manufactured by electron beam melting (EBM). The microstructure, the corrosion behavior and the fatigue properties were studied comprehensively. The investigated sample conditions showed significant differences in the microstructures that led to changes in corrosion and fatigue properties. The EBM iron showed significantly lower fatigue strength compared to the HR iron. These different fatigue responses were observed under purely mechanical loading as well as with superimposed corrosion influence and are summarized in a model that describes the underlying failure mechanisms. article_number: '18' author: - first_name: Steffen full_name: Wackenrohr, Steffen last_name: Wackenrohr - first_name: Christof Johannes Jaime full_name: Torrent, Christof Johannes Jaime last_name: Torrent - first_name: Sebastian full_name: Herbst, Sebastian last_name: Herbst - first_name: Florian full_name: Nürnberger, Florian last_name: Nürnberger - first_name: Philipp full_name: Krooss, Philipp last_name: Krooss - first_name: Christoph full_name: Ebbert, Christoph last_name: Ebbert - first_name: Markus full_name: Voigt, Markus id: '15182' last_name: Voigt - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier - first_name: Thomas full_name: Niendorf, Thomas last_name: Niendorf - first_name: Hans Jürgen full_name: Maier, Hans Jürgen last_name: Maier citation: ama: Wackenrohr S, Torrent CJJ, Herbst S, et al. Corrosion fatigue behavior of electron beam melted iron in simulated body fluid. npj Materials Degradation. 2022;6(1). doi:10.1038/s41529-022-00226-4 apa: Wackenrohr, S., Torrent, C. J. J., Herbst, S., Nürnberger, F., Krooss, P., Ebbert, C., Voigt, M., Grundmeier, G., Niendorf, T., & Maier, H. J. (2022). Corrosion fatigue behavior of electron beam melted iron in simulated body fluid. Npj Materials Degradation, 6(1), Article 18. https://doi.org/10.1038/s41529-022-00226-4 bibtex: '@article{Wackenrohr_Torrent_Herbst_Nürnberger_Krooss_Ebbert_Voigt_Grundmeier_Niendorf_Maier_2022, title={Corrosion fatigue behavior of electron beam melted iron in simulated body fluid}, volume={6}, DOI={10.1038/s41529-022-00226-4}, number={118}, journal={npj Materials Degradation}, publisher={Springer Science and Business Media LLC}, author={Wackenrohr, Steffen and Torrent, Christof Johannes Jaime and Herbst, Sebastian and Nürnberger, Florian and Krooss, Philipp and Ebbert, Christoph and Voigt, Markus and Grundmeier, Guido and Niendorf, Thomas and Maier, Hans Jürgen}, year={2022} }' chicago: Wackenrohr, Steffen, Christof Johannes Jaime Torrent, Sebastian Herbst, Florian Nürnberger, Philipp Krooss, Christoph Ebbert, Markus Voigt, Guido Grundmeier, Thomas Niendorf, and Hans Jürgen Maier. “Corrosion Fatigue Behavior of Electron Beam Melted Iron in Simulated Body Fluid.” Npj Materials Degradation 6, no. 1 (2022). https://doi.org/10.1038/s41529-022-00226-4. ieee: 'S. Wackenrohr et al., “Corrosion fatigue behavior of electron beam melted iron in simulated body fluid,” npj Materials Degradation, vol. 6, no. 1, Art. no. 18, 2022, doi: 10.1038/s41529-022-00226-4.' mla: Wackenrohr, Steffen, et al. “Corrosion Fatigue Behavior of Electron Beam Melted Iron in Simulated Body Fluid.” Npj Materials Degradation, vol. 6, no. 1, 18, Springer Science and Business Media LLC, 2022, doi:10.1038/s41529-022-00226-4. short: S. Wackenrohr, C.J.J. Torrent, S. Herbst, F. Nürnberger, P. Krooss, C. Ebbert, M. Voigt, G. Grundmeier, T. Niendorf, H.J. Maier, Npj Materials Degradation 6 (2022). date_created: 2022-04-20T07:55:17Z date_updated: 2022-04-20T07:59:08Z department: - _id: '35' - _id: '302' - _id: '321' doi: 10.1038/s41529-022-00226-4 intvolume: ' 6' issue: '1' keyword: - Materials Chemistry - Materials Science (miscellaneous) - Chemistry (miscellaneous) - Ceramics and Composites language: - iso: eng publication: npj Materials Degradation publication_identifier: issn: - 2397-2106 publication_status: published publisher: Springer Science and Business Media LLC status: public title: Corrosion fatigue behavior of electron beam melted iron in simulated body fluid type: journal_article user_id: '7266' volume: 6 year: '2022' ... --- _id: '30923' abstract: - lang: eng text: Additive manufacturing (AM) processes are not solely used where maximum design freedom meets low lot sizes. Direct microstructure design and topology optimization can be realized concomitantly during processing by adjusting the geometry, the material composition, and the solidification behavior of the material considered. However, when complex specific requirements have to be met, a targeted part design is highly challenging. In the field of biodegradable implant surgery, a cytocompatible material of an application-adapted shape has to be characterized by a specific degradation behavior and reliably predictable mechanical properties. For instance, small amounts of oxides can have a significant effect on microstructural development, thus likewise affecting the strength and corrosion behavior of the processed material. In the present study, biocompatible pure Fe was processed using electron powder bed fusion (E-PBF). Two different modifications of the Fe were processed by incorporating Fe oxide and Ce oxide in different proportions in order to assess their impact on the microstructural evolution, the mechanical response and the corrosion behavior. The quasistatic mechanical and chemical properties were analyzed and correlated with the final microstructural appearance. author: - first_name: Christof J. J. full_name: Torrent, Christof J. J. last_name: Torrent - first_name: Philipp full_name: Krooß, Philipp last_name: Krooß - first_name: Jingyuan full_name: Huang, Jingyuan last_name: Huang - first_name: Markus full_name: Voigt, Markus id: '15182' last_name: Voigt - first_name: Christoph full_name: Ebbert, Christoph last_name: Ebbert - first_name: Steffen full_name: Knust, Steffen last_name: Knust - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier - first_name: Thomas full_name: Niendorf, Thomas last_name: Niendorf citation: ama: Torrent CJJ, Krooß P, Huang J, et al. Oxide Modified Iron in Electron Beam Powder Bed Fusion—From Processability to Corrosion Properties. Alloys. 2022;1(1):31-53. doi:10.3390/alloys1010004 apa: Torrent, C. J. J., Krooß, P., Huang, J., Voigt, M., Ebbert, C., Knust, S., Grundmeier, G., & Niendorf, T. (2022). Oxide Modified Iron in Electron Beam Powder Bed Fusion—From Processability to Corrosion Properties. Alloys, 1(1), 31–53. https://doi.org/10.3390/alloys1010004 bibtex: '@article{Torrent_Krooß_Huang_Voigt_Ebbert_Knust_Grundmeier_Niendorf_2022, title={Oxide Modified Iron in Electron Beam Powder Bed Fusion—From Processability to Corrosion Properties}, volume={1}, DOI={10.3390/alloys1010004}, number={1}, journal={Alloys}, publisher={MDPI AG}, author={Torrent, Christof J. J. and Krooß, Philipp and Huang, Jingyuan and Voigt, Markus and Ebbert, Christoph and Knust, Steffen and Grundmeier, Guido and Niendorf, Thomas}, year={2022}, pages={31–53} }' chicago: 'Torrent, Christof J. J., Philipp Krooß, Jingyuan Huang, Markus Voigt, Christoph Ebbert, Steffen Knust, Guido Grundmeier, and Thomas Niendorf. “Oxide Modified Iron in Electron Beam Powder Bed Fusion—From Processability to Corrosion Properties.” Alloys 1, no. 1 (2022): 31–53. https://doi.org/10.3390/alloys1010004.' ieee: 'C. J. J. Torrent et al., “Oxide Modified Iron in Electron Beam Powder Bed Fusion—From Processability to Corrosion Properties,” Alloys, vol. 1, no. 1, pp. 31–53, 2022, doi: 10.3390/alloys1010004.' mla: Torrent, Christof J. J., et al. “Oxide Modified Iron in Electron Beam Powder Bed Fusion—From Processability to Corrosion Properties.” Alloys, vol. 1, no. 1, MDPI AG, 2022, pp. 31–53, doi:10.3390/alloys1010004. short: C.J.J. Torrent, P. Krooß, J. Huang, M. Voigt, C. Ebbert, S. Knust, G. Grundmeier, T. Niendorf, Alloys 1 (2022) 31–53. date_created: 2022-04-20T07:57:11Z date_updated: 2022-04-20T07:59:23Z department: - _id: '35' - _id: '302' - _id: '321' doi: 10.3390/alloys1010004 intvolume: ' 1' issue: '1' language: - iso: eng page: 31-53 publication: Alloys publication_identifier: issn: - 2674-063X publication_status: published publisher: MDPI AG status: public title: Oxide Modified Iron in Electron Beam Powder Bed Fusion—From Processability to Corrosion Properties type: journal_article user_id: '7266' volume: 1 year: '2022' ... --- _id: '29806' author: - first_name: Jingyuan full_name: Huang, Jingyuan last_name: Huang - first_name: Markus full_name: Voigt, Markus id: '15182' last_name: Voigt - first_name: Steffen full_name: Wackenrohr, Steffen last_name: Wackenrohr - first_name: Christoph full_name: Ebbert, Christoph id: '7266' last_name: Ebbert - first_name: Adrian full_name: Keller, Adrian id: '48864' last_name: Keller orcid: 0000-0001-7139-3110 - first_name: Hans Jürgen full_name: Maier, Hans Jürgen last_name: Maier - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier citation: ama: Huang J, Voigt M, Wackenrohr S, et al. Influence of hydrogel coatings on corrosion and fatigue of iron in simulated body fluid. Materials and Corrosion. 2022;73:1034. doi:10.1002/maco.202112841 apa: Huang, J., Voigt, M., Wackenrohr, S., Ebbert, C., Keller, A., Maier, H. J., & Grundmeier, G. (2022). Influence of hydrogel coatings on corrosion and fatigue of iron in simulated body fluid. Materials and Corrosion, 73, 1034. https://doi.org/10.1002/maco.202112841 bibtex: '@article{Huang_Voigt_Wackenrohr_Ebbert_Keller_Maier_Grundmeier_2022, title={Influence of hydrogel coatings on corrosion and fatigue of iron in simulated body fluid}, volume={73}, DOI={10.1002/maco.202112841}, journal={Materials and Corrosion}, publisher={Wiley}, author={Huang, Jingyuan and Voigt, Markus and Wackenrohr, Steffen and Ebbert, Christoph and Keller, Adrian and Maier, Hans Jürgen and Grundmeier, Guido}, year={2022}, pages={1034} }' chicago: 'Huang, Jingyuan, Markus Voigt, Steffen Wackenrohr, Christoph Ebbert, Adrian Keller, Hans Jürgen Maier, and Guido Grundmeier. “Influence of Hydrogel Coatings on Corrosion and Fatigue of Iron in Simulated Body Fluid.” Materials and Corrosion 73 (2022): 1034. https://doi.org/10.1002/maco.202112841.' ieee: 'J. Huang et al., “Influence of hydrogel coatings on corrosion and fatigue of iron in simulated body fluid,” Materials and Corrosion, vol. 73, p. 1034, 2022, doi: 10.1002/maco.202112841.' mla: Huang, Jingyuan, et al. “Influence of Hydrogel Coatings on Corrosion and Fatigue of Iron in Simulated Body Fluid.” Materials and Corrosion, vol. 73, Wiley, 2022, p. 1034, doi:10.1002/maco.202112841. short: J. Huang, M. Voigt, S. Wackenrohr, C. Ebbert, A. Keller, H.J. Maier, G. Grundmeier, Materials and Corrosion 73 (2022) 1034. date_created: 2022-02-11T07:52:48Z date_updated: 2022-07-05T09:17:29Z department: - _id: '302' doi: 10.1002/maco.202112841 intvolume: ' 73' keyword: - Materials Chemistry - Metals and Alloys - Surfaces - Coatings and Films - Mechanical Engineering - Mechanics of Materials - Environmental Chemistry - Materials Chemistry - Metals and Alloys - Surfaces - Coatings and Films - Mechanical Engineering - Mechanics of Materials - Environmental Chemistry - Materials Chemistry - Metals and Alloys - Surfaces - Coatings and Films - Mechanical Engineering - Mechanics of Materials - Environmental Chemistry language: - iso: eng page: '1034' publication: Materials and Corrosion publication_identifier: issn: - 0947-5117 - 1521-4176 publication_status: published publisher: Wiley status: public title: Influence of hydrogel coatings on corrosion and fatigue of iron in simulated body fluid type: journal_article user_id: '48864' volume: 73 year: '2022' ... --- _id: '36804' article_number: '126756' author: - first_name: Tobias full_name: Henksmeier, Tobias id: '42539' last_name: Henksmeier - first_name: Johann Friedemann full_name: Schulz, Johann Friedemann last_name: Schulz - first_name: Elias full_name: Kluth, Elias last_name: Kluth - first_name: Martin full_name: Feneberg, Martin last_name: Feneberg - first_name: Rüdiger full_name: Goldhahn, Rüdiger last_name: Goldhahn - first_name: Ana M. full_name: Sanchez, Ana M. last_name: Sanchez - first_name: Markus full_name: Voigt, Markus id: '15182' last_name: Voigt - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier - first_name: Dirk full_name: Reuter, Dirk id: '37763' last_name: Reuter citation: ama: Henksmeier T, Schulz JF, Kluth E, et al. Remote epitaxy of In(x)Ga(1-x)As(001) on graphene covered GaAs(001) substrates. Journal of Crystal Growth. 2022;593. doi:10.1016/j.jcrysgro.2022.126756 apa: Henksmeier, T., Schulz, J. F., Kluth, E., Feneberg, M., Goldhahn, R., Sanchez, A. M., Voigt, M., Grundmeier, G., & Reuter, D. (2022). Remote epitaxy of In(x)Ga(1-x)As(001) on graphene covered GaAs(001) substrates. Journal of Crystal Growth, 593, Article 126756. https://doi.org/10.1016/j.jcrysgro.2022.126756 bibtex: '@article{Henksmeier_Schulz_Kluth_Feneberg_Goldhahn_Sanchez_Voigt_Grundmeier_Reuter_2022, title={Remote epitaxy of In(x)Ga(1-x)As(001) on graphene covered GaAs(001) substrates}, volume={593}, DOI={10.1016/j.jcrysgro.2022.126756}, number={126756}, journal={Journal of Crystal Growth}, publisher={Elsevier}, author={Henksmeier, Tobias and Schulz, Johann Friedemann and Kluth, Elias and Feneberg, Martin and Goldhahn, Rüdiger and Sanchez, Ana M. and Voigt, Markus and Grundmeier, Guido and Reuter, Dirk}, year={2022} }' chicago: Henksmeier, Tobias, Johann Friedemann Schulz, Elias Kluth, Martin Feneberg, Rüdiger Goldhahn, Ana M. Sanchez, Markus Voigt, Guido Grundmeier, and Dirk Reuter. “Remote Epitaxy of In(x)Ga(1-x)As(001) on Graphene Covered GaAs(001) Substrates.” Journal of Crystal Growth 593 (2022). https://doi.org/10.1016/j.jcrysgro.2022.126756. ieee: 'T. Henksmeier et al., “Remote epitaxy of In(x)Ga(1-x)As(001) on graphene covered GaAs(001) substrates,” Journal of Crystal Growth, vol. 593, Art. no. 126756, 2022, doi: 10.1016/j.jcrysgro.2022.126756.' mla: Henksmeier, Tobias, et al. “Remote Epitaxy of In(x)Ga(1-x)As(001) on Graphene Covered GaAs(001) Substrates.” Journal of Crystal Growth, vol. 593, 126756, Elsevier, 2022, doi:10.1016/j.jcrysgro.2022.126756. short: T. Henksmeier, J.F. Schulz, E. Kluth, M. Feneberg, R. Goldhahn, A.M. Sanchez, M. Voigt, G. Grundmeier, D. Reuter, Journal of Crystal Growth 593 (2022). date_created: 2023-01-13T15:40:17Z date_updated: 2023-01-13T16:02:06Z department: - _id: '15' - _id: '2' - _id: '292' - _id: '230' doi: 10.1016/j.jcrysgro.2022.126756 intvolume: ' 593' language: - iso: eng project: - _id: '63' name: 'TRR 142 - A6: TRR 142 - Subproject A6' publication: Journal of Crystal Growth publication_status: published publisher: Elsevier status: public title: Remote epitaxy of In(x)Ga(1-x)As(001) on graphene covered GaAs(001) substrates type: journal_article user_id: '42539' volume: 593 year: '2022' ... --- _id: '62235' abstract: - lang: eng text: Additive manufacturing (AM) processes are not solely used where maximum design freedom meets low lot sizes. Direct microstructure design and topology optimization can be realized concomitantly during processing by adjusting the geometry, the material composition, and the solidification behavior of the material considered. However, when complex specific requirements have to be met, a targeted part design is highly challenging. In the field of biodegradable implant surgery, a cytocompatible material of an application-adapted shape has to be characterized by a specific degradation behavior and reliably predictable mechanical properties. For instance, small amounts of oxides can have a significant effect on microstructural development, thus likewise affecting the strength and corrosion behavior of the processed material. In the present study, biocompatible pure Fe was processed using electron powder bed fusion (E-PBF). Two different modifications of the Fe were processed by incorporating Fe oxide and Ce oxide in different proportions in order to assess their impact on the microstructural evolution, the mechanical response and the corrosion behavior. The quasistatic mechanical and chemical properties were analyzed and correlated with the final microstructural appearance. author: - first_name: Christof J. J. full_name: Torrent, Christof J. J. last_name: Torrent - first_name: Philipp full_name: Krooß, Philipp last_name: Krooß - first_name: Jingyuan full_name: Huang, Jingyuan last_name: Huang - first_name: Markus full_name: Voigt, Markus id: '15182' last_name: Voigt - first_name: Christoph full_name: Ebbert, Christoph id: '7266' last_name: Ebbert - first_name: Steffen full_name: Knust, Steffen last_name: Knust - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier - first_name: Thomas full_name: Niendorf, Thomas last_name: Niendorf citation: ama: Torrent CJJ, Krooß P, Huang J, et al. Oxide Modified Iron in Electron Beam Powder Bed Fusion—From Processability to Corrosion Properties. Alloys. 2022;1(1):31-53. doi:10.3390/alloys1010004 apa: Torrent, C. J. J., Krooß, P., Huang, J., Voigt, M., Ebbert, C., Knust, S., Grundmeier, G., & Niendorf, T. (2022). Oxide Modified Iron in Electron Beam Powder Bed Fusion—From Processability to Corrosion Properties. Alloys, 1(1), 31–53. https://doi.org/10.3390/alloys1010004 bibtex: '@article{Torrent_Krooß_Huang_Voigt_Ebbert_Knust_Grundmeier_Niendorf_2022, title={Oxide Modified Iron in Electron Beam Powder Bed Fusion—From Processability to Corrosion Properties}, volume={1}, DOI={10.3390/alloys1010004}, number={1}, journal={Alloys}, publisher={MDPI AG}, author={Torrent, Christof J. J. and Krooß, Philipp and Huang, Jingyuan and Voigt, Markus and Ebbert, Christoph and Knust, Steffen and Grundmeier, Guido and Niendorf, Thomas}, year={2022}, pages={31–53} }' chicago: 'Torrent, Christof J. J., Philipp Krooß, Jingyuan Huang, Markus Voigt, Christoph Ebbert, Steffen Knust, Guido Grundmeier, and Thomas Niendorf. “Oxide Modified Iron in Electron Beam Powder Bed Fusion—From Processability to Corrosion Properties.” Alloys 1, no. 1 (2022): 31–53. https://doi.org/10.3390/alloys1010004.' ieee: 'C. J. J. Torrent et al., “Oxide Modified Iron in Electron Beam Powder Bed Fusion—From Processability to Corrosion Properties,” Alloys, vol. 1, no. 1, pp. 31–53, 2022, doi: 10.3390/alloys1010004.' mla: Torrent, Christof J. J., et al. “Oxide Modified Iron in Electron Beam Powder Bed Fusion—From Processability to Corrosion Properties.” Alloys, vol. 1, no. 1, MDPI AG, 2022, pp. 31–53, doi:10.3390/alloys1010004. short: C.J.J. Torrent, P. Krooß, J. Huang, M. Voigt, C. Ebbert, S. Knust, G. Grundmeier, T. Niendorf, Alloys 1 (2022) 31–53. date_created: 2025-11-18T12:01:42Z date_updated: 2025-11-18T12:04:45Z department: - _id: '35' - _id: '302' - _id: '321' doi: 10.3390/alloys1010004 intvolume: ' 1' issue: '1' language: - iso: eng page: 31-53 publication: Alloys publication_identifier: issn: - 2674-063X publication_status: published publisher: MDPI AG status: public title: Oxide Modified Iron in Electron Beam Powder Bed Fusion—From Processability to Corrosion Properties type: journal_article user_id: '7266' volume: 1 year: '2022' ... --- _id: '63206' abstract: - lang: eng text: AbstractPure iron is very attractive as a biodegradable implant material due to its high biocompatibility. In combination with additive manufacturing, which facilitates great flexibility of the implant design, it is possible to selectively adjust the microstructure of the material in the process, thereby control the corrosion and fatigue behavior. In the present study, conventional hot-rolled (HR) pure iron is compared to pure iron manufactured by electron beam melting (EBM). The microstructure, the corrosion behavior and the fatigue properties were studied comprehensively. The investigated sample conditions showed significant differences in the microstructures that led to changes in corrosion and fatigue properties. The EBM iron showed significantly lower fatigue strength compared to the HR iron. These different fatigue responses were observed under purely mechanical loading as well as with superimposed corrosion influence and are summarized in a model that describes the underlying failure mechanisms. article_number: '18' author: - first_name: Steffen full_name: Wackenrohr, Steffen last_name: Wackenrohr - first_name: Christof Johannes Jaime full_name: Torrent, Christof Johannes Jaime last_name: Torrent - first_name: Sebastian full_name: Herbst, Sebastian last_name: Herbst - first_name: Florian full_name: Nürnberger, Florian last_name: Nürnberger - first_name: Philipp full_name: Krooss, Philipp last_name: Krooss - first_name: Christoph full_name: Ebbert, Christoph id: '7266' last_name: Ebbert - first_name: Markus full_name: Voigt, Markus id: '15182' last_name: Voigt - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier - first_name: Thomas full_name: Niendorf, Thomas last_name: Niendorf - first_name: Hans Jürgen full_name: Maier, Hans Jürgen last_name: Maier citation: ama: Wackenrohr S, Torrent CJJ, Herbst S, et al. Corrosion fatigue behavior of electron beam melted iron in simulated body fluid. npj Materials Degradation. 2022;6(1). doi:10.1038/s41529-022-00226-4 apa: Wackenrohr, S., Torrent, C. J. J., Herbst, S., Nürnberger, F., Krooss, P., Ebbert, C., Voigt, M., Grundmeier, G., Niendorf, T., & Maier, H. J. (2022). Corrosion fatigue behavior of electron beam melted iron in simulated body fluid. Npj Materials Degradation, 6(1), Article 18. https://doi.org/10.1038/s41529-022-00226-4 bibtex: '@article{Wackenrohr_Torrent_Herbst_Nürnberger_Krooss_Ebbert_Voigt_Grundmeier_Niendorf_Maier_2022, title={Corrosion fatigue behavior of electron beam melted iron in simulated body fluid}, volume={6}, DOI={10.1038/s41529-022-00226-4}, number={118}, journal={npj Materials Degradation}, publisher={Springer Science and Business Media LLC}, author={Wackenrohr, Steffen and Torrent, Christof Johannes Jaime and Herbst, Sebastian and Nürnberger, Florian and Krooss, Philipp and Ebbert, Christoph and Voigt, Markus and Grundmeier, Guido and Niendorf, Thomas and Maier, Hans Jürgen}, year={2022} }' chicago: Wackenrohr, Steffen, Christof Johannes Jaime Torrent, Sebastian Herbst, Florian Nürnberger, Philipp Krooss, Christoph Ebbert, Markus Voigt, Guido Grundmeier, Thomas Niendorf, and Hans Jürgen Maier. “Corrosion Fatigue Behavior of Electron Beam Melted Iron in Simulated Body Fluid.” Npj Materials Degradation 6, no. 1 (2022). https://doi.org/10.1038/s41529-022-00226-4. ieee: 'S. Wackenrohr et al., “Corrosion fatigue behavior of electron beam melted iron in simulated body fluid,” npj Materials Degradation, vol. 6, no. 1, Art. no. 18, 2022, doi: 10.1038/s41529-022-00226-4.' mla: Wackenrohr, Steffen, et al. “Corrosion Fatigue Behavior of Electron Beam Melted Iron in Simulated Body Fluid.” Npj Materials Degradation, vol. 6, no. 1, 18, Springer Science and Business Media LLC, 2022, doi:10.1038/s41529-022-00226-4. short: S. Wackenrohr, C.J.J. Torrent, S. Herbst, F. Nürnberger, P. Krooss, C. Ebbert, M. Voigt, G. Grundmeier, T. Niendorf, H.J. Maier, Npj Materials Degradation 6 (2022). date_created: 2025-12-18T11:55:16Z date_updated: 2025-12-18T11:56:57Z department: - _id: '35' - _id: '302' - _id: '321' doi: 10.1038/s41529-022-00226-4 intvolume: ' 6' issue: '1' language: - iso: eng publication: npj Materials Degradation publication_identifier: issn: - 2397-2106 publication_status: published publisher: Springer Science and Business Media LLC status: public title: Corrosion fatigue behavior of electron beam melted iron in simulated body fluid type: journal_article user_id: '7266' volume: 6 year: '2022' ... --- _id: '62237' author: - first_name: P. full_name: Vieth, P. last_name: Vieth - first_name: Markus full_name: Voigt, Markus id: '15182' last_name: Voigt - first_name: Christoph full_name: Ebbert, Christoph id: '7266' last_name: Ebbert - first_name: B. full_name: Milkereit, B. last_name: Milkereit - first_name: E. full_name: Zhuravlev, E. last_name: Zhuravlev - first_name: B. full_name: Yang, B. last_name: Yang - first_name: O. full_name: Keßler, O. last_name: Keßler - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier citation: ama: Vieth P, Voigt M, Ebbert C, et al. Surface inoculation of aluminium powders for additive manufacturing of Al-7075 alloys. Procedia CIRP. 2020;94:17-20. doi:10.1016/j.procir.2020.09.004 apa: Vieth, P., Voigt, M., Ebbert, C., Milkereit, B., Zhuravlev, E., Yang, B., Keßler, O., & Grundmeier, G. (2020). Surface inoculation of aluminium powders for additive manufacturing of Al-7075 alloys. Procedia CIRP, 94, 17–20. https://doi.org/10.1016/j.procir.2020.09.004 bibtex: '@article{Vieth_Voigt_Ebbert_Milkereit_Zhuravlev_Yang_Keßler_Grundmeier_2020, title={Surface inoculation of aluminium powders for additive manufacturing of Al-7075 alloys}, volume={94}, DOI={10.1016/j.procir.2020.09.004}, journal={Procedia CIRP}, publisher={Elsevier BV}, author={Vieth, P. and Voigt, Markus and Ebbert, Christoph and Milkereit, B. and Zhuravlev, E. and Yang, B. and Keßler, O. and Grundmeier, Guido}, year={2020}, pages={17–20} }' chicago: 'Vieth, P., Markus Voigt, Christoph Ebbert, B. Milkereit, E. Zhuravlev, B. Yang, O. Keßler, and Guido Grundmeier. “Surface Inoculation of Aluminium Powders for Additive Manufacturing of Al-7075 Alloys.” Procedia CIRP 94 (2020): 17–20. https://doi.org/10.1016/j.procir.2020.09.004.' ieee: 'P. Vieth et al., “Surface inoculation of aluminium powders for additive manufacturing of Al-7075 alloys,” Procedia CIRP, vol. 94, pp. 17–20, 2020, doi: 10.1016/j.procir.2020.09.004.' mla: Vieth, P., et al. “Surface Inoculation of Aluminium Powders for Additive Manufacturing of Al-7075 Alloys.” Procedia CIRP, vol. 94, Elsevier BV, 2020, pp. 17–20, doi:10.1016/j.procir.2020.09.004. short: P. Vieth, M. Voigt, C. Ebbert, B. Milkereit, E. Zhuravlev, B. Yang, O. Keßler, G. Grundmeier, Procedia CIRP 94 (2020) 17–20. date_created: 2025-11-18T12:13:59Z date_updated: 2025-11-18T12:15:14Z department: - _id: '35' - _id: '302' - _id: '321' doi: 10.1016/j.procir.2020.09.004 intvolume: ' 94' language: - iso: eng page: 17-20 publication: Procedia CIRP publication_identifier: issn: - 2212-8271 publication_status: published publisher: Elsevier BV status: public title: Surface inoculation of aluminium powders for additive manufacturing of Al-7075 alloys type: journal_article user_id: '7266' volume: 94 year: '2020' ... --- _id: '25911' abstract: - lang: eng text: Different types of reduced graphene oxide and graphene oxide particles have been studied regarding their influence on the curing behaviour of epoxy-amine resins. Especially the specific surface area of reduced graphene oxide was selectively influenced by controlled drying of the material. The different types of reduced graphene oxide particles were used to produce epoxy-amine composites that significantly change their curing behaviour and mechanical properties. A variety of surface areas and compositions were prepared by combination of a fast heating rate and different drying methods. The combination of freeze drying with a fast heating rate leads to a large specific surface area of 680 m2/g. The morphologies of the particles were observed by scanning electron microscope and the BET surface area was measured with nitrogen-physisorption. The exfoliation quality was measured by XRD. The generated graphene oxide and thermally reduced graphene oxide particles were mixed with epoxy-amine resin. The curing behaviour was studied with rheological and differential scanning calorimetry (DSC) measurements. We observed that different surface functionalities lowers the Glass transition temperature and the gel time of an epoxy-amine curing system. In addition, we found that generated graphene oxide acts as flexibilizer. An increase of the deformation from 2.5 mm to 3.1 mm was measured by Erichsen Cupping Test. article_type: original author: - first_name: Andreas full_name: Wolk, Andreas last_name: Wolk - first_name: Marta full_name: Rosenthal, Marta last_name: Rosenthal - first_name: Julia full_name: Weiß, Julia last_name: Weiß - first_name: Markus full_name: Voigt, Markus id: '15182' last_name: Voigt - first_name: Jan-Niklas full_name: Wesendahl, Jan-Niklas last_name: Wesendahl - first_name: Marc full_name: Hartmann, Marc last_name: Hartmann - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier - first_name: Rene full_name: Wilhelm, Rene last_name: Wilhelm - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 - first_name: Michael full_name: Tiemann, Michael id: '23547' last_name: Tiemann orcid: 0000-0003-1711-2722 - first_name: Wolfgang full_name: Bremser, Wolfgang id: '32' last_name: Bremser citation: ama: Wolk A, Rosenthal M, Weiß J, et al. Graphene oxide as flexibilizer for epoxy amine resins. Progress in Organic Coatings. Published online 2018:280-289. doi:10.1016/j.porgcoat.2018.05.028 apa: Wolk, A., Rosenthal, M., Weiß, J., Voigt, M., Wesendahl, J.-N., Hartmann, M., Grundmeier, G., Wilhelm, R., Meschut, G., Tiemann, M., & Bremser, W. (2018). Graphene oxide as flexibilizer for epoxy amine resins. Progress in Organic Coatings, 280–289. https://doi.org/10.1016/j.porgcoat.2018.05.028 bibtex: '@article{Wolk_Rosenthal_Weiß_Voigt_Wesendahl_Hartmann_Grundmeier_Wilhelm_Meschut_Tiemann_et al._2018, title={Graphene oxide as flexibilizer for epoxy amine resins}, DOI={10.1016/j.porgcoat.2018.05.028}, journal={Progress in Organic Coatings}, author={Wolk, Andreas and Rosenthal, Marta and Weiß, Julia and Voigt, Markus and Wesendahl, Jan-Niklas and Hartmann, Marc and Grundmeier, Guido and Wilhelm, Rene and Meschut, Gerson and Tiemann, Michael and et al.}, year={2018}, pages={280–289} }' chicago: Wolk, Andreas, Marta Rosenthal, Julia Weiß, Markus Voigt, Jan-Niklas Wesendahl, Marc Hartmann, Guido Grundmeier, et al. “Graphene Oxide as Flexibilizer for Epoxy Amine Resins.” Progress in Organic Coatings, 2018, 280–89. https://doi.org/10.1016/j.porgcoat.2018.05.028. ieee: 'A. Wolk et al., “Graphene oxide as flexibilizer for epoxy amine resins,” Progress in Organic Coatings, pp. 280–289, 2018, doi: 10.1016/j.porgcoat.2018.05.028.' mla: Wolk, Andreas, et al. “Graphene Oxide as Flexibilizer for Epoxy Amine Resins.” Progress in Organic Coatings, 2018, pp. 280–89, doi:10.1016/j.porgcoat.2018.05.028. short: A. Wolk, M. Rosenthal, J. Weiß, M. Voigt, J.-N. Wesendahl, M. Hartmann, G. Grundmeier, R. Wilhelm, G. Meschut, M. Tiemann, W. Bremser, Progress in Organic Coatings (2018) 280–289. date_created: 2021-10-08T10:49:57Z date_updated: 2023-06-06T14:33:05Z department: - _id: '35' - _id: '307' - _id: '302' - _id: '301' - _id: '2' - _id: '321' - _id: '157' doi: 10.1016/j.porgcoat.2018.05.028 language: - iso: eng page: 280-289 publication: Progress in Organic Coatings publication_identifier: issn: - 0300-9440 publication_status: published quality_controlled: '1' status: public title: Graphene oxide as flexibilizer for epoxy amine resins type: journal_article user_id: '14931' year: '2018' ...