Effects of complex additives on toughness and electrical properties of PZT ceramics

被引：16

作者：

Chua, BW ^{[1
]}

Lu, L ^{[1
]}

Lai, MO ^{[1
]}

Wong, GHL ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mech Engn, Singapore 117576, Singapore

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2004年 / 381卷 / 1-2期

关键词：

ferroelectrics; high-energy ball mill; mechanical properties;

D O I：

10.1016/j.jallcom.2004.03.109

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 [物理化学]; 081704 [应用化学];

摘要：

This paper investigates the influence of complex additives on the toughness and electrical properties of doped PZT. Properties of doped PZT ceramics were found to be greatly influenced by their microstructures, second phases, domain size, domain configuration and domain wall mobility due to presence of the additives. The presence of dopant appeared to assist densification. Due to the combined effects of the presence of second phases, energy dissipation in the ferroelastic domains, high density as well as changes in grain size, the fracture toughness of the doped PZT was increased. With suitable additives, the present study has demonstrated that dielectric and piezoelectric properties of doped PZT could be improved. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：272 / 277

页数：6

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