Chapter 16. Extrusion Freeform Fabrication of Functional Ceramic Prototypes

  1. Todd Jessen and
  2. Ersan Ustundag
  1. R. Vaidyanathan1,
  2. J. L. Lombardi1,
  3. J. Walish1,
  4. S. Kasichainula2,
  5. P. Calvert2 and
  6. K. Cooper3

Published Online: 28 MAR 2008

DOI: 10.1002/9780470294635.ch16

24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 21, Issue 4

24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 21, Issue 4

How to Cite

Vaidyanathan, R., Lombardi, J. L., Walish, J., Kasichainula, S., Calvert, P. and Cooper, K. (2000) Extrusion Freeform Fabrication of Functional Ceramic Prototypes, in 24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 21, Issue 4 (eds T. Jessen and E. Ustundag), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294635.ch16

Author Information

  1. 1

    Advanced Ceramics Research, Inc., 3292 E. Hemisphere Loop, Tucson, AZ 85706

  2. 2

    University of Arizona Arizona Material Laboratories, Tucson AZ, 85712

  3. 3

    NASA Marshall Space Flight Center, Huntsville, AL 35812

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 2000

ISBN Information

Print ISBN: 9780470375693

Online ISBN: 9780470294635

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Keywords:

  • extrusion freeforming;
  • fused deposition modeling;
  • dense ceramic components;
  • ceramic feed rod;
  • free silicon nitride

Summary

Extrusion Freeforming (EFF) and Fused Deposition Modeling (FDM) processes are established freeforming techniques capable of fabricating complex shaped ceramic prototypes by the sequential deposition and solidification of green ceramic feedstock, layer by layer until the final part results. The freeforming of ceramic parts was accomplished using a commercially available Stratasys 3D Modeler retrofitted with a high-pressure extrusion head designed by Advanced Ceramics Research, Inc. (ACR). The manufactured objects had good dimensional tolerances, as well as real engineering compositions and microstructures. Ceramic feedstock based on two different silicon nitride powders were developed and successfully used to make prototype parts. Mechanical properties and microstructural characterization of prototype parts were performed.