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Microwave Processing and Sintering of PZT and PLZT Ceramics

Published online by Cambridge University Press:  21 February 2011

W. B. Harrison
Affiliation:
Honeywell Ceramics Center, 5121 Winnetka Avenue North, New Hope, MN 55428
M. R. B. Hanson
Affiliation:
Honeywell Ceramics Center, 5121 Winnetka Avenue North, New Hope, MN 55428
B. G. Koepke
Affiliation:
Honeywell Ceramics Center, 5121 Winnetka Avenue North, New Hope, MN 55428
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Abstract

Microwave processing techniques were established for all of the thermal treatment steps necessary to prepare high density PZT and PLZT. The microstructure and ferroelectric properties of the microwave processed materials were compared to conventionally sintered and fast fired PZT. Unique high density, small grain size, PZT and PLZT were obtained by microwave sintering either conventionally or fully microwave processed powders. It was estimated that microwave sintering would use only five percent of the energy used by conventional sintering.

The suitability of microwave processing for the production of two modifications (Sr and La) of lead zirconate - lead titanate (PZT) ceramics was investigated in this program. A commercial microwave oven was used to evaluate drying, calcining, binder burnoff, and sintering. These materials were then compared to those produced by fast-firing and conventional sintering methods.

Type
Research Article
Copyright
Copyright © Materials Research Society 1988

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References

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