Chapter 55. Tensile Strength of Dried Gelcast Green Bodies

  1. John B. Wachtman Jr.
  1. Stephen D. Nunn,
  2. Ogbemi O. Omatete,
  3. Claudia A. Walls and
  4. Dixie L. Barker

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314500.ch55

Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - A: Ceramic Engineering and Science Proceedings, Volume 15, Issue 4

Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - A: Ceramic Engineering and Science Proceedings, Volume 15, Issue 4

How to Cite

Nunn, S. D., Omatete, O. O., Walls, C. A. and Barker, D. L. (1994) Tensile Strength of Dried Gelcast Green Bodies, in Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - A: Ceramic Engineering and Science Proceedings, Volume 15, Issue 4 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314500.ch55

Author Information

  1. Oak Ridge National Laboratory, Oak Ridge, TN 37831-6087

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1994

ISBN Information

Print ISBN: 9780470375327

Online ISBN: 9780470314500

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Keywords:

  • gelcasting;
  • gelcast;
  • near-net-shape;
  • vertical axis;
  • agglomeration

Summary

Ceramic green bodies were prepared by three different techniques, dry pressing, slip casting, and gelcasting. The tensile strength of the green bodies was measured using a diametral compression test. It was found that the gelcast samples were from 2 to 20 times stronger than the conventionally formed green bodies. SEM examination of the gelcast samples revealed a homogeneous, brittle fracture surface indicating a very uniform distribution of the binder and excellent dispersion of the ceramic powder