Microstructure, electrical and mechanical properties of MgO nanoparticles-reinforced porous PZT 95/5 ferroelectric ceramics

被引：22

作者：

Wang, Junxia ^{[1
,2
]}

Nie, Hengchang ^{[1
]}

Lan, Chunfeng ^{[1
]}

Wang, Genshui ^{[1
]}

Dong, Xianlin ^{[1
]}

Chen, Xuefeng ^{[1
]}

Cao, Fei ^{[1
]}

He, Hongliang ^{[3
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Devices, Shanghai 200050, Peoples R China

[2] Southwest Univ Sci & Technol, State Key Lab Cultivat Base Nonmet Composite & Fu, Mianyang 621010, Peoples R China

[3] CAEP, Inst Fluid Phys, Lab Shock Wave & Detonat Phys Res, Mianyang 621900, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2013年 / 39卷 / 04期

关键词：

PZT/MgO; Microstructure; Electrical properties; Mechanical properties; PHASE-TRANSFORMATION; NANOCOMPOSITES; POROSITY; FABRICATION;

D O I：

10.1016/j.ceramint.2012.10.238

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Porous Pb (Zr0.95Ti0.05) O-3/xMgO (PZT/MgO, x=0, 0.1, 0.2, 0.5 and 1.0 wt%) ferroelectric ceramics were prepared with MgO nanoparticles as reinforcing phase. The effects of MgO nanoparticles on the phase, microstructure, electrical and mechanical properties of as-prepared ceramics were investigated. The results show that the grain size is reduced obviously when increasing the amount of MgO. Compared with pure porous PZT, T-C of MgO-added PZT ceramics shifts to higher temperature. Moreover, dielectric, ferroelectric and piezoelectric properties show no much degradation. Further, PZT/MgO ceramics possess enhanced mechanical properties compared to pure porous PZT ceramics, the largest increment of the fracture toughness and hardness being 31.3% and 19.8%, respectively. The optimal electrical and mechanical properties are obtained with the addition of less than 0.5 wt% MgO nanoparticles. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：3915 / 3919

页数：5

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