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Densification Behavior of Al2O3 Powders Containing ZrO2 Inclusions

Published online by Cambridge University Press:  21 February 2011

O. Sudre ,
D. C. C. Lam  and
F. F. Lange
O. Sudre
Affiliation:
Materials Department, College of Engineering, University of California Santa Barbara, CA 93106.
D. C. C. Lam
Affiliation:
Materials Department, College of Engineering, University of California Santa Barbara, CA 93106.
F. F. Lange
Affiliation:
Materials Department, College of Engineering, University of California Santa Barbara, CA 93106.
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Abstract

Densification experiments using ZrO2 single-crystal particles in an Al2O3 powder matrix were performed to examine the microstructural changes produced by constrained densification. Observations showed the formation of large, lowdensity regions within a denser material network. Enlargement of pores by desintering of necks between grains was observed during grain coarsening within these low-density regions. This pore opening behavior was also investigated in a model experiment.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 155: Symposium L – Processing Science of Advanced Ceramics , 1989 , 363
Copyright
Copyright © Materials Research Society 1989

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References

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