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Lead-free ferroelectric relaxor ceramics derived from BaTiO3*

Published online by Cambridge University Press:  15 July 2000

J. Ravez  and
A. Simon
J. Ravez*
Affiliation:
Institut de Chimie de la Matière Condensée - CNRS, 87 avenue A. Schweitzer, 33608 Pessac, France
A. Simon
Affiliation:
Institut de Chimie de la Matière Condensée - CNRS, 87 avenue A. Schweitzer, 33608 Pessac, France
*
jean.ravez@icmcb.u-bordeaux.fr
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Abstract

A large number of lead-free BaTiO3-based ceramics were prepared. Depending on the composition, some of them exhibit a relaxor behaviour whose characteristics were related to the type of ionic substitution and to the substitution rate. The relaxor effect is all the more favoured as the composition deviates more from BaTiO3 and as the substitution is heterovalent in the 6-coordination number crystallographic site. Some of these materials could prove valuable (dielectrics for capacitors and actuators) because they are environment-friendly.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 11 , Issue 1 , July 2000 , pp. 9 - 13
Copyright
© EDP Sciences, 2000

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Footnotes

*

This work has been presented at the 3rd SEE meeting (16-17 September 1999. INSA-Lyon, France).

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