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Microwave Sintering of ZnO Varistor Ceramics

Published online by Cambridge University Press:  25 February 2011

Lionel M. Levinson ,
Holly A. Comanzo  and
William N. Schultz
Lionel M. Levinson
Affiliation:
General Electric, Corporate Research and Development, P.O. Box 8, Schenectady, NY 12301
Holly A. Comanzo
Affiliation:
General Electric, Corporate Research and Development, P.O. Box 8, Schenectady, NY 12301
William N. Schultz
Affiliation:
General Electric, Corporate Research and Development, P.O. Box 8, Schenectady, NY 12301
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Abstract

ZnO varistors are electronic ceramics whose electrical behavior is dominated by grain boundary effects. A careful evaluation of the effect of microwave sintering compared to conventional sintering revealed no significant differences between varistor devices processed by these two methods. A slight apparent enhancement of grain growth was observed for microwave processing, but further evaluation of this effect leads us to believe that it arises from a small systematic shift in temperature derived from the different experimental configurations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 269: Symposium L – Microwave Processing of Materials III , 1992 , 311
Copyright
Copyright © Materials Research Society 1992

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References

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