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Densification of Shock-Treated Aluminum Nitride and Aluminum Oxide*

Published online by Cambridge University Press:  21 February 2011

E. K. Beauchamp ,
R. A. Graham  and
M. J. Carr
E. K. Beauchamp
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87185
R. A. Graham
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87185
M. J. Carr
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87185
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Abstract

The structures of aluminum nitride and aluminum oxide powders have been modified by explosive shock treatment at pressures from 4 to 27 GPa. Shockinduced dislocations in AlN were apparently responsible for enhancement in hot pressing behavior. In Al2O3 an increase 3 to 4 times in densification rates after shocking resulted-from rapid sintering of aggregates in the powder.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 24: Symposium B – Defect Properties and Processing of High-Technology Nonmetallic Materials , 1983 , 281
Copyright
Copyright © Materials Research Society 1984

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Footnotes

*

This work was sponsored jointly by the Department of Energy and the Defense Advanced Research Projects Agency.

References

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