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Title: Composition and temperature dependence of ferroelectric and pyroelectric properties of (1 − x)[PMN–PT(65/35)]–xPZ (0 ≤ x ≤ 0.10) ceramics

Highlights: • PMN–PT–PZ ceramics with PZ content smaller than 0.10 mol% were synthesized. • T{sub rt} of the PMN–PT–PZ ceramics increased linearly with the increase of PZ constant. • A mutation of the ferroelectric and pyroelectric properties was observed near T{sub rt}. - Abstract: (1 − x)[Pb(Mg{sub 1/3}Nb{sub 2/3})O{sub 3}–PbTiO{sub 3} (65/35)]–xPbZrO{sub 3} (PMN–PT–PZ) ceramics near morphotropic phase boundary with 0 ≤ x ≤ 0.10 were synthesized via the conventional solid-state reaction method. X-ray diffraction and variable temperature dielectric property characterization indicated that the rhombohedral to tetragonal phase transition temperature (T{sub rt}) increased linearly with the increase of PZ constant. The composition and temperature dependence of their ferroelectric and pyroelectric properties were also investigated. The results showed that there appeared mutation for remnant polarization, coercive field, as well as pyroelectric coefficient at the temperate range near T{sub rt}, which was ascribed to the reorientation of dipoles caused by the rhombohedral–tetragonal phase transition.
Authors:
;  [1] ;  [1] ;  [1] ; ;  [2]
  1. Department of Chemistry, Tsinghua University, Beijing 10084 (China)
  2. State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084 (China)
Publication Date:
OSTI Identifier:
22420641
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 59; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERAMICS; CONCENTRATION RATIO; DIELECTRIC PROPERTIES; FERROELECTRIC MATERIALS; LEAD COMPOUNDS; MAGNESIUM OXIDES; NIOBATES; PHASE TRANSFORMATIONS; POLARIZATION; SOLIDS; TEMPERATURE DEPENDENCE; TITANATES; TRIGONAL LATTICES; X-RAY DIFFRACTION; ZIRCONATES