Study of microstructure and dielectric properties of PMN-PZT ceramics via a mixed powder method including sol-gel precursor

被引：9

作者：

Moetakef, Pouya ^{[2
]}

Nemati, Z. Ali ^{[1
]}

机构：

[1] Sharif Univ Technol, Dept Mat Sci & Engn, Tehran, Iran

[2] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 476卷 / 1-2期

关键词：

Ferroelectrics; Sol-gel synthesis; Dielectric response; PHASE-FORMATION; PEROVSKITE; TEMPERATURE; BEHAVIOR; PBO;

D O I：

10.1016/j.jallcom.2008.09.136

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 ; 081704 ;

摘要：

An attempt to synthesize pyrochlore free (x)PMN-(1-x)PZT ceramics (where x is 0, 0.1, 0.3, 0.5, 0.7, 0.9, and 1) by a mixed powder method was made. In this work, a sol-gel prepared PZT powder was mixed with the mixture of milled PbO, MgO and Nb2O5, and sintered in a two step sintering process. The produced samples with high PZT content showed low densities due to the low compaction ratio of PZT powder. The dielectric properties of PZT-rich and PMN-rich materials were high (with dielectric constant of about 19,000 and 33,000 for PZT-rich and PMN-rich ceramics, respectively) while the other samples exhibited low dielectric properties. Also, the effect of combining PMN with PZT on Curie temperature was studied. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：791 / 796

页数：6

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