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The Effect of The Space Charge On The Properties of An Inhomogeneous Pyroelectric Ceramic

Published online by Cambridge University Press:  15 February 2011

L. Pintilie
L. Pintilie*
Affiliation:
Institute of Physics and Technology of Materials, Bucharest-Magurele, P.O. Box MG-7, 76900, Romania
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Abstract

The properties of a series ceramic bimorph structure were studied in this paper. The two components of the bimorph were PLZT ceramics with different transition temperatures. The properties of the series bimorph were strongly influenced by the space charge that appears due to the inhomogenities in resistance and dielectric constant.. Some theoretical considerations were made regarding the electric fields that appear inside the bimorph, when heated. It is shown that the value and the direction of these fields could suffer considerable changes in a bimorph structure, compared with the situation when each of the two components is heated separately. The possibility to obtain structures with improved pyroelectric coefficient was put into evidence.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 357: Symposium C – Structure and Properties of Interfaces in Ceramics , 1994 , 413
Copyright
Copyright © Materials Research Society 1995

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