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题名:
Phase structure and electrical properties of xPZN-(1-x)PZT piezoceramics near the tetragonal/rhombohedral phase boundary
作者: Li, Hai-Long1,2; Zhang, Ying1; Zhou, Jia-Jun1,2; Zhang, Xiao-Wen3; Liu, Hong1; Fang, Jing-Zhong1
刊名: CERAMICS INTERNATIONAL
出版日期: 2015-04-01
卷号: 41, 期号:3, 页码:4822-4828
关键词: Piezoelectric properties ; Perovskites ; PZT
文章类型: Article
英文摘要: xPb(Zn1/3Nb2/3)O-3 (1-x)PbZr0.5Ti0.5O3 (xPZN-(1-x)PZT) (x=0.22-0.36) polycrystalline ceramics with finely varied PZN content were fabricated by a solid-state reaction method. The phase structure, microstructure and temperature dependence of the electrical properties were systematically investigated. The core of the morphotropic phase boundary (MPB) separating the tetragonal from rhombohedral phases located around the region with x=0.26-0.30, identified by XRD measurement and electrical properties. Higher PZN content favored rhombohedral symmetry and stronger relaxor-like characteristics. All compositions demonstrated well-saturated ferroelectric P E loops, and a maximum remnant polarization of P-r similar to 41.83 mu C/cm(2) with a corresponding coercive field E-c similar to 11.3 kV/cm was achieved around MPB. Optimum electrical properties of piezoelectric constant d33-550 pC/N, planar electromechanical coupling coefficient k(p)similar to 0.69, relative dielectric permittivity epsilon(r)similar to 2327 were obtained in the 0.28PZN-0.72PZT composition with a relatively high Curie point of T-c similar to 325 degrees C. This composition also possessed a good electric field-induced-strain property with d*(33) up to 658 pm/V (E= 1 kV/mm), making it promising for application in piezoactuators. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
WOS标题词: Science & Technology ; Technology
类目[WOS]: Materials Science, Ceramics
研究领域[WOS]: Materials Science
关键词[WOS]: PZN-PZT CERAMICS ; FERROELECTRIC CERAMICS ; PIEZOELECTRIC PROPERTIES ; DIELECTRIC-PROPERTIES ; GRAIN-SIZE ; SYSTEM ; TRANSITION ; BEHAVIOR
收录类别: SCI
语种: 英语
WOS记录号: WOS:000350180600072
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内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/2544
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
2.Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China
3.Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

Recommended Citation:
Li, Hai-Long,Zhang, Ying,Zhou, Jia-Jun,et al. Phase structure and electrical properties of xPZN-(1-x)PZT piezoceramics near the tetragonal/rhombohedral phase boundary[J]. CERAMICS INTERNATIONAL,2015,41(3):4822-4828.
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