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Effect of substituents with different valences on antiferroelectric stability of antiferroelectric lead zirconate ceramics

Published online by Cambridge University Press:  31 January 2011

Qi Tan ,
Z. Xu  and
Dwight Viehland
Qi Tan
Affiliation:
Johnson Matthey Electronics, 15128 East Euclid Avenue, Spokane, Washington 99216
Z. Xu
Affiliation:
Department of Materials Science and Engineering, University of Illinois, Urbana, Illinois 61801
Dwight Viehland
Affiliation:
Naval Undersea Warfare Center, Newport, Rhode Island 02841
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Abstract

The effect of lower valent substituents on the stability of the antiferroelectric phase of lead zirconate was studied by dielectric spectroscopy, Sawyer–Tower polarization methods, and electron diffraction techniques. The stability of an intermediate ferroelectric phase region was found to be enhanced with increasing lower valent substitution concentration. The influences of substituents of different ionic size and valence on the stabilization of the intermediate ferroelectric phase were differentiated. In general, lower valent substituents, such as K+ and Fe3+ affected antiferroelectric phase stability more significantly than higher valent ones.

Type
Articles
Information
Journal of Materials Research , Volume 14 , Issue 11 , November 1999 , pp. 4251 - 4258
Copyright
Copyright © Materials Research Society 1999

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