期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 25, 期 13, 页码 3213-3221出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2004.07.018
关键词
PZT ceramics; Young's modulus; shear modulus; mechanical losses; phase diagram; X-ray methods
The aim of the present paper is to investigate the PZT phase diagram and to examine the phase transitions occurring in the low temperature range near the morphotropic phase boundary by using measurement of elastic moduli. The phase transitions are also studied by XRD measurements as a function of temperature. XRD patterns as a function of temperature let us to follow the evolution of lattice parameters and so the determination of phase transitions. Phase transitions identified by Young's and shear modulus anomalies M-1 and M-2 are in accordance with those found by XRD studies and correspond, respectively to the Curie transition-between cubic paraelectric phase and tetragonal ferroelectric phase-and to the morphotropic transition-between both ferroelectric tetragonal and rhombohedral phases or from tetragonal to monoclinic phase. Finally a revisited version of PZT phase diagram is proposed. (c) 2004 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据