Selective Laser Sintering of Ceramic Parts Investigators: Ming Leu ([email protected], 573-341-4482), Greg Hilmas, Fatih Dogan, Krishna Kolan, Nannan Guo, Shashwat Pattnaik, Erik Adamek, Jason Nolte, Jeff Liu, Michael Hayes, Stan Lawton Funding Source: Air Force Research Laboratory, National Science Foundation, Boeing Company, MoSci Corporation Project Description: This research investigates using the Selective Laser Sintering (SLS) process to fabricate three- dimensional complex parts for aerospace, biomedical and energy applications. The parts being fabricated include aerospace structural components from high temperature and ultra-high temperature materials (alumina and zirconium diboride), bone scaffolds from 13-93 bioglass, and fuel-cell bipolar plates from graphite. The research objectives are: (1) investigating the feasibility of using SLS for producing 3D parts of complex geometry from various materials for future industrial applications, (2) determining the SLS process parameters, material compositions, and building strategy, (3) examining the part’s dimensional changes after SLS, binder burnout, and sintering processes, and (4) evaluating the mechanical strength, density and microstructure of the specimens after sintering. More details of the project description is available on the weblink: http://web.mst.edu/~vram/projects.htm . Publications: • “Selective Laser Sintering of High-Density Alumina Ceramic Parts,” Z. H. Liu, J. J. Nolte, J.I. Packard, G. Hilmas, F. Dogan and M. C. Leu, Proceedings of 35 th International MATADOR Conference, Taipei, Taiwan, July 18-20, 2007, pp. 351-354. • “Freeform Fabrication of Zirconium Diboride Parts Using Selective Laser Sintering,” M. C. Leu, E. B. Adamek, T. Huang, G. E. Hilmas, and F. Dogan, Proceedings of Solid Freeform Fabrication Symposium, Austin, TX, August 4-6, 2008. • “Investigation of Selective Laser Sintering of Zirconium Diboride Parts,” M. C. Leu, S. Pattnaik, G. E. Hilmas and F. Dogan, Proceedings of Solid Freeform Fabrication Symposium, Austin, TX, August 3-5, 2009. • “Optimization of Selective Laser Sintering Process for Fabrication of Zirconium Diboride Parts,” M. C. Leu, S. Pattnaik, and G. E. Hilmas, Proceedings of Solid Freeform Fabrication Symposium, Austin, TX, August 9-11, 2010. • “Effect of Different Graphite Materials on the Properties of Bipolar Plates Fabricated by Selective Laser Sintering,” N. Guo and M. C. Leu, Proceedings of Solid Freeform Fabrication Symposium, Austin, TX, August 9-11, 2010.

Selective Laser Sintering of Ceramic Parts · Selective Laser Sintering of Ceramic Parts . Investigators: Ming Leu ([email protected], 573-341-4482), Greg Hilmas, Fatih Dogan, ... Project

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Selective Laser Sintering of Ceramic Parts

Investigators: Ming Leu ([email protected], 573-341-4482), Greg Hilmas, Fatih Dogan, Krishna Kolan, Nannan Guo, Shashwat Pattnaik, Erik Adamek, Jason Nolte, Jeff Liu, Michael Hayes, Stan Lawton Funding Source: Air Force Research Laboratory, National Science Foundation, Boeing Company, MoSci Corporation Project Description: This research investigates using the Selective Laser Sintering (SLS) process to fabricate three-dimensional complex parts for aerospace, biomedical and energy applications. The parts being fabricated include aerospace structural components from high temperature and ultra-high temperature materials (alumina and zirconium diboride), bone scaffolds from 13-93 bioglass, and fuel-cell bipolar plates from graphite. The research objectives are: (1) investigating the feasibility of using SLS for producing 3D parts of complex geometry from various materials for future industrial applications, (2) determining the SLS process parameters, material compositions, and building strategy, (3) examining the part’s dimensional changes after SLS, binder burnout, and sintering processes, and (4) evaluating the mechanical strength, density and microstructure of the specimens after sintering. More details of the project description is available on the weblink: http://web.mst.edu/~vram/projects.htm.

Publications:

• “Selective Laser Sintering of High-Density Alumina Ceramic Parts,” Z. H. Liu, J. J. Nolte, J.I. Packard, G. Hilmas, F. Dogan and M. C. Leu, Proceedings of 35th International MATADOR Conference, Taipei, Taiwan, July 18-20, 2007, pp. 351-354.

• “Freeform Fabrication of Zirconium Diboride Parts Using Selective Laser Sintering,” M. C. Leu, E. B. Adamek, T. Huang, G. E. Hilmas, and F. Dogan, Proceedings of Solid Freeform Fabrication Symposium, Austin, TX, August 4-6, 2008.

• “Investigation of Selective Laser Sintering of Zirconium Diboride Parts,” M. C. Leu, S. Pattnaik, G. E. Hilmas and F. Dogan, Proceedings of Solid Freeform Fabrication Symposium, Austin, TX, August 3-5, 2009.

• “Optimization of Selective Laser Sintering Process for Fabrication of Zirconium Diboride Parts,” M. C. Leu, S. Pattnaik, and G. E. Hilmas, Proceedings of Solid Freeform Fabrication Symposium, Austin, TX, August 9-11, 2010.

• “Effect of Different Graphite Materials on the Properties of Bipolar Plates Fabricated by Selective Laser Sintering,” N. Guo and M. C. Leu, Proceedings of Solid Freeform Fabrication Symposium, Austin, TX, August 9-11, 2010.

http://web.mst.edu/~vram/projects.htm�

Page 2: Selective Laser Sintering of Ceramic Parts · Selective Laser Sintering of Ceramic Parts . Investigators: Ming Leu (mleu@mst.edu, 573-341-4482), Greg Hilmas, Fatih Dogan, ... Project

• “Selective Laser Sintering of 13-93 Bioactive Glass Bone Scaffolds,” K. C. R. Kolan, M. C. Leu, G. E. Hilmas, and M. Velez, Proceedings of Solid Freeform Fabrication Symposium, Austin, TX, August 9-11, 2010.