Chapter 21. Influence of Surface Condition on the Strength of Glass-Al2O3 Composites

  1. William J. Smothers
  1. Subhash H. Risbud

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291092.ch21

Proceedings of the 5th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 2, Issue 7/8

Proceedings of the 5th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 2, Issue 7/8

How to Cite

Risbud, S. H. (1981) Influence of Surface Condition on the Strength of Glass-Al2O3 Composites, in Proceedings of the 5th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 2, Issue 7/8 (ed W. J. Smothers), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291092.ch21

Author Information

  1. Dept. of Ceramic Engineering and Materials Research Lab, University of Illinois at Urbana-Champaign Urbana, Ill. 61801

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1981

ISBN Information

Print ISBN: 9780470373903

Online ISBN: 9780470291092

SEARCH

Keywords:

  • mechanical;
  • microstructure;
  • crystalline;
  • postabrasion;
  • micrographs

Summary

The four-point bend strength of a 50 vol% glass-Al2O3 composite was investigated relative to the extent of surface damage. The composite system was fabricated by the vacuum hot pressing of finely powdered mixtures of glass and Al2O3. Flexure specimens were cut from hot-pressed compacts using diamond saw blades of various grit sizes. As-sawed, SiC abraded, and annealed specimens were also tested. Uniaxial strengths were found to be independent of the grit size of diamond saw blades, decreased significantly with surface abrasion, and were found to recover partially upon annealing.