Chapter 14. The Sintering Effects of Time, Temperature, and ZNO Additions on CMZP Ceramics

  1. J. P. Singh
  1. J. R. Clarke and
  2. D. A. Hirschfeld

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294444.ch14

Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4

Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4

How to Cite

Clarke, J. R. and Hirschfeld, D. A. (1997) The Sintering Effects of Time, Temperature, and ZNO Additions on CMZP Ceramics, in Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4 (ed J. P. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294444.ch14

Author Information

  1. Corning Inc., Christiansburg VA

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1997

ISBN Information

Print ISBN: 9780470375532

Online ISBN: 9780470294444

SEARCH

Keywords:

  • synthesized;
  • combustion;
  • thermal expansion;
  • optimize;
  • microstructures

Summary

The sintering of (Ca0.6,Mg0.4)Zr4(PO4)6 powder (CMZP) synthesized via a new solid-state reaction method was investigated for application as a thermal barrier in next generation internal combustion engines. Specifically, CMZP is being considered as a potential material for the manufacture of exhaust port liners to increase the overall performance of diesel engines. The effects of firing time, firing temperature, and amount of ZnO sintering aid on modulus of rupture (MOR), bulk density, and coefficient of thermal expansion (CTE) were determined to optimize the physical properties for this application. The formation of secondary interparticle phases (grain boundaries) was found to be the controlling factor for obtaining high strength and positive thermal expansion. All high strength samples fractured transgranularly and exhibited fine grained microstructures void of grain boundaries and microcracks.