@inproceedings{51147,
  author       = {{Massopo, Orlando and Tischendorf, Ricardo and Schmid, Hans-Joachim and Fröde, Fabian and Grenga, Temistocle and Pitsch, Heinz and Bieber, Malte and Reddemann, Manuel and Kneer, Reinhold}},
  keywords     = {{Flame Stability, Particle Sample Extraction, SMPS, Impurities}},
  location     = {{Nürnberg}},
  publisher    = {{International Congress of Particle Technology}},
  title        = {{{Influence of atomization on the particle formation in spray flame pyrolysis (Presentation)}}},
  year         = {{2023}},
}

@inproceedings{51142,
  author       = {{Massopo, Orlando and Tischendorf, Ricardo and Schmid, Hans-Joachim and Fröde, Fabian and Pitsch, Heinz and Reddemann, Manuel and Grenga, Temistocle and Kneer, Reinhold}},
  keywords     = {{SpraySyn, Flammenspraypyrolyse, Maghemite Nanopartikel, Gas to particle-Syntheseweg, Probennahme, Verunreinigung}},
  location     = {{Paderborn}},
  publisher    = {{Jahrestreffen der DECHEMA-Fachgruppen Aerosoltechnik, Gasreinigung, Mehrphasenströmung und Partikelmesstechnik}},
  title        = {{{Einfluss der Zerstäubung auf diePartikelbildung bei der Sprayflammenpyrolyse (Vortrag)}}},
  year         = {{2023}},
}

@article{54632,
  author       = {{Bentrup, Leon Alexander and Gräßer, Melanie  and Temmen, Katrin and Schmid, Hans-Joachim}},
  journal      = {{die hochschullehre}},
  number       = {{9}},
  publisher    = {{wbv Publikation}},
  title        = {{{Entwicklung eines neuen Konzeptes zur Vermittlung von Lerntechniken und Selbstlernkompetenzen für Studierende des Maschinenbaus an der Universität Paderborn}}},
  doi          = {{10.3278/HSL2310W}},
  year         = {{2023}},
}

@inproceedings{30220,
  abstract     = {{In this work, the influences of spherical fillers on the processing properties and the resulting mechanical properties of laser sintered components are investigated. For this purpose, micro glass spheres, hollow glass bubbles and mineral spheres are dry blended to the matrix polymers polyamide 613 and polypropylene with a filling ratio of 20 and 40 vol%. First, relevant properties of the blends, such as powder flowability, thermal behavior and melt viscosity, are investigated. Based on the results, processing parameters are then developed for the LS process and the mechanical properties of the components are investigated. The aim is to be able to tailor the mechanical properties of LS components by adding fillers and thus to create new application areas for additively manufactured components. }},
  author       = {{Kletetzka, Ivo and Gawlikowicz, Roland and Schmid, Hans-Joachim}},
  booktitle    = {{Proceedings of the 33th Annual International Solid Freeform Fabrication Symposium}},
  location     = {{Austin}},
  publisher    = {{Laboratory for Freeform Fabrication and University of Texas}},
  title        = {{{Effects of spherical fillers on the processability and mechanical properties of PA613 and PP-based LS dry blends}}},
  doi          = {{http://dx.doi.org/10.26153/tsw/44558}},
  volume       = {{33}},
  year         = {{2022}},
}

@inproceedings{32874,
  author       = {{Kletetzka, Ivo and Klippstein, Sven Helge and Schmid, Hans-Joachim}},
  booktitle    = {{Proceedings of the 33th Annual International Solid Freeform Fabrication Symposium}},
  location     = {{Austin}},
  publisher    = {{Laboratory for Freeform Fabrication and University of Texas}},
  title        = {{{Shelf Life of Polyamide 12 (PA2200) Laser Sintering Powder}}},
  doi          = {{http://dx.doi.org/10.26153/tsw/44555}},
  volume       = {{33}},
  year         = {{2022}},
}

@article{31035,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Further innovation in the field of selective laser sintering (SLS) is strongly connected to the availability of new materials since the market is dominated by polyamide 12 (&gt;90%). The aim of this publication is to develop a descriptive model for the droplet formation process in a Filament Extension Atomizer to predict the applicability to exploit further polymers for the SLS process. The feasibility was tested, investigated and characterized using a “Dripping out of a nozzle” setup for uniaxial extension. The droplet formation process was then observed via high-speed camera imaging and classified for certain parameters. The experiments were carried out using semi-diluted polyethylene oxide (600–4000 kg/mol), glycerol and water solutions as model fluids. Driven by the Plateau-Rayleigh instability, different types of spherical droplets were observed and various droplet formation mechanisms demonstrated and analyzed. Based on the experimental results, a predictive model is derived to describe various essential parameters.</jats:p>}},
  author       = {{Neukötter, Moritz and Jesinghausen, Steffen and Schmid, Hans-Joachim}},
  issn         = {{0035-4511}},
  journal      = {{Rheologica Acta}},
  keywords     = {{Rheology, SLS, Lasersintering, exensional rheology}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Model droplet formation in extensional filament stretching within a Filament Extension Atomizer}}},
  doi          = {{10.1007/s00397-022-01339-y}},
  year         = {{2022}},
}

@inproceedings{37424,
  author       = {{Beimdiek, Janis and Schmid, Hans-Joachim}},
  keywords     = {{clean air, harmful gas removal, denitrification, SCR, catalytic filtration, nanoparticles, flame-synthesis}},
  location     = {{Bochum}},
  title        = {{{A combined flue gas cleaning system with a novel entrained flow SCR using an online synthesized catalyst (Poster)}}},
  year         = {{2022}},
}

@article{35729,
  author       = {{Rüther, Moritz Johannes and Klippstein, Sven Helge and Ponusamy, SathishKumar and Jesinghausen, Steffen and Schmid, Hans-Joachim}},
  journal      = {{Werkstoffe}},
  pages        = {{18 -- 19}},
  publisher    = {{HW-Verlag}},
  title        = {{{Innovative Werkstoffherstellung für das Polymer Laser Sintern – Teil 2}}},
  volume       = {{6}},
  year         = {{2022}},
}

@article{35724,
  author       = {{Rüther, Moritz Johannes and Klippstein, Sven Helge and Ponusamy, SathishKumar and Jesinghausen, Steffen and Schmid, Hans-Joachim}},
  journal      = {{Werkstoffe}},
  pages        = {{28--29}},
  publisher    = {{HW-Verlag}},
  title        = {{{Innovative Werkstoffherstellung für das Polymer Laser Sintern – Teil 1}}},
  volume       = {{5}},
  year         = {{2022}},
}

@inproceedings{37432,
  author       = {{Beimdiek, Janis and Schmid, Hans-Joachim}},
  keywords     = {{clean air, harmful gas removal, denitrification, SCR, catalytic filtration, nanoparticles, flame-synthesis}},
  location     = {{San Diego}},
  title        = {{{Novel entrained flow SCR using online synthesized catalyst particles (Poster)}}},
  year         = {{2022}},
}

@inproceedings{41160,
  author       = {{Neukötter, Moritz and Jesinghausen, Steffen and Schmid, Hans-Joachim}},
  location     = {{Digital}},
  title        = {{{Triggering instabilities of polymer solution suspensions under uniaxial extension  (Presentation)}}},
  year         = {{2022}},
}

@inproceedings{41158,
  author       = {{Neukötter, Moritz and Jesinghausen, Steffen and Schmid, Hans-Joachim}},
  location     = {{Sevilla}},
  title        = {{{Instability analysis of suspensions with a polymer solution matrix (Presentation)}}},
  year         = {{2022}},
}

@inproceedings{33695,
  author       = {{Rüther, Moritz Johannes and Klippstein, Sven Helge and Schmid, Hans-Joachim}},
  editor       = {{Rüther, Moritz Johannes and Klippstein, Sven Helge and Schmid, Hans-Joachim}},
  location     = {{Madrid}},
  title        = {{{Flowability of polymer powders at elevated temperatures for additive manufacturing}}},
  year         = {{2022}},
}

@inproceedings{43238,
  author       = {{Rüther, Torben and Jesinghausen, Steffen and Schmid, Hans-Joachim}},
  keywords     = {{Couette, Rheology, Correction}},
  location     = {{Sevilla}},
  title        = {{{A novel correction method for the shear rate in a couette rheometer (Vortrag)}}},
  year         = {{2022}},
}

@inproceedings{43243,
  author       = {{Rüther, Torben and Schmid, Hans-Joachim}},
  location     = {{Madrid}},
  title        = {{{Multidimensional particle characterization: Centrifugal Differential Mobility Analyzer (Poster)}}},
  year         = {{2022}},
}

@inproceedings{43240,
  author       = {{Rüther, Torben and Jesinghausen, Steffen and Schmid, Hans-Joachim}},
  title        = {{{NEW CORRECTION APPROACHES FOR DETERMINING THE TRUE SHEAR RATE IN A COAXIAL-RHEOMETER (Vortrag)}}},
  year         = {{2022}},
}

@article{30228,
  abstract     = {{Confidence in additive manufacturing technologies is directly related to the predictability of part properties, which is influenced by several factors. To gain confidence, online process monitoring with dedicated and reliable feedback is desirable for every process. In this project, a powder bed monitoring system was developed as a retrofit solution for the EOS P3 laser sintering machines. A high-resolution camera records each layer, which is analyzed by a Region-Based Convolutional Neural Network (Mask R-CNN). Over 2500 images were annotated and classified to train the network in detecting defects in the powder bed at a very high level. Each defect is checked for intersection with exposure areas. To distinguish between acceptable imperfections and critical defects that lead to part rejection, the impact of these imperfections on part properties is investigated.}},
  author       = {{Klippstein, Sven Helge and Heiny, Florian and Pashikanti,, Nagaraju and Gessler, Monika and Schmid, Hans-Joachim}},
  journal      = {{JOM - The Journal of The Minerals, Metals & Materials Society (TMS)}},
  location     = {{Online}},
  pages        = {{1149–1157}},
  publisher    = {{Springer}},
  title        = {{{Powder Spread Process Monitoring in Polymer Laser Sintering and its Influences on Part Properties}}},
  doi          = {{https://doi.org/10.1007/s11837-021-05042-w }},
  volume       = {{74}},
  year         = {{2022}},
}

@inproceedings{33356,
  abstract     = {{By monitoring the recoating process within polymer laser sintering production, it was shown that multiple powder-spread-flaws can be detected. Those groove-like flaws are expected to be the result of agglomerates jamming between the recoater and the last powder layer. This work is analyzing the interaction between powder-spread-flaws and part properties, showing the influence of the recoating process on the performance of laser sintering parts. Therefore, artificial powder-spread-flaws are applied to the build jobs of tensile test specimens which are measured and analyzed regarding the elongation at break, strength and fracture position. For the characteristics of the flaws, the artificial grooves are varied in depth and width. Furthermore, the position of the flaw is changed form mid part to close to surface areas. It was shown, that several flaws are visible at the part surface, resulting in stress concentration and reduced performance. But there are as well parts with flaw-layers, which are not visible after the build process on the part. Those parts can have significantly reduced mechanical properties as well.}},
  author       = {{Klippstein, Sven Helge and Schmid, Hans-Joachim}},
  booktitle    = {{Proceedings of the 33nd Annual International Solid Freeform Fabrication Symposium}},
  keywords     = {{Selective Sasersintering, Process Monitoring, Powder Spread}},
  title        = {{{Powder Spread Flaws in Polymer Laser Sintering and its Influences on Mechanical Performance}}},
  year         = {{2022}},
}

@article{44468,
  author       = {{Schmidt, Stephan and Gräßer, Melanie and Schmid, Hans-Joachim}},
  issn         = {{1064-8275}},
  journal      = {{SIAM Journal on Scientific Computing}},
  keywords     = {{Applied Mathematics, Computational Mathematics}},
  number       = {{4}},
  pages        = {{B1175--B1194}},
  publisher    = {{Society for Industrial & Applied Mathematics (SIAM)}},
  title        = {{{A Shape Newton Scheme for Deforming Shells with Application to Capillary Bridges}}},
  doi          = {{10.1137/20m1389054}},
  volume       = {{44}},
  year         = {{2022}},
}

@article{44469,
  author       = {{Menge, Dennis and Schmid, Hans-Joachim}},
  issn         = {{1022-1360}},
  journal      = {{Macromolecular Symposia}},
  keywords     = {{Materials Chemistry, Polymers and Plastics, Organic Chemistry, Condensed Matter Physics}},
  number       = {{1}},
  publisher    = {{Wiley}},
  title        = {{{Low Temperature Laser Sintering with PA12 and PA6 on a Standard System}}},
  doi          = {{10.1002/masy.202100397}},
  volume       = {{404}},
  year         = {{2022}},
}