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Structure and Strength of Rapidly Quenched Cu-Al2O3 Composites

Published online by Cambridge University Press:  10 February 2011

A. I. Il'Insky ,
A. S. Terletsky  and
E. W. Zozulya
A. I. Il'Insky
Affiliation:
Department of Materials Science, Kharkov State Polytechnic University, Frunze Street 21 Kharkov, Ukraine.
A. S. Terletsky
Affiliation:
Department of Materials Science, Kharkov State Polytechnic University, Frunze Street 21 Kharkov, Ukraine.
E. W. Zozulya
Affiliation:
Department of Materials Science, Kharkov State Polytechnic University, Frunze Street 21 Kharkov, Ukraine.
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Abstract

Microstructure of dispersion hardened composites (DC) Cu-Al2O3 prepared by simultaneous vacuum vapor condensation of Cu and A12O3 was studied by X-ray diffractometry and transmission electron microscopy methods. After high temperature annealing at 900°C for 2 hours the composites retain the submicrocrystalline structure and high level of strength -0.9 GPa. It has been found that strain hardening of vacuum deposited Cu-A12O3 composites takes place in three stages that is not typical for well-known composites of metallurgical origin.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 555: Symposium OO – Properties and Processing of Vapor-Deposited Coatings , 1998 , 279
Copyright
Copyright © Materials Research Society 1999

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References

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