期刊
ACTA MATERIALIA
卷 54, 期 20, 页码 5565-5572出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.actamat.2006.08.016
关键词
lead zirconate titanate; morphotropic phase boundary; ferroelectric; piezoelectric properties; elastic domains
The coexistence of tetragonal and rhombohedral phases as elastic domains is studied in this paper for lead zirconate titanate (PZT) ferroelectric films near the morphotropic phase boundary (MPB). The volume fractions of the phases and different twin components are obtained as functions of misfit strain and film orientation. It is shown that the superior electromechanical properties of MPB-PZT films may be understood on the basis of a field-induced evolution of the heterophase polydomain structure. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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