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Mechanical Properties and Grain Growth Inhibition in The System Al2O3 : c-ZrO2

Published online by Cambridge University Press:  21 February 2011

J. D. French ,
H. M. Chan ,
M. P. Harmer  and
G. A. Miller
J. D. French
Affiliation:
Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA 18015
H. M. Chan
Affiliation:
Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA 18015
M. P. Harmer
Affiliation:
Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA 18015
G. A. Miller
Affiliation:
Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA 18015
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Abstract

The grain coarsening in a 50:50 volume percent Al2 O3 : c-ZrO2 composite is shown to be severely limited even after long heat treatments at high temperatures (100 hours at 1650°C). The strength behavior, measured by an indentation-strength-inbending (ISIB) method, shows a “rule-of-mixtures” type behavior. The microstructural stability at high temperatures yields reliability in the mechanical properties which has important implications with regard to fiber-reinforcement technology.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 170: Symposium N – Interfaces in Composites , 1989 , 239
Copyright
Copyright © Materials Research Society 1990

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References

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