Synthesis of slightly ⟨111⟩-oriented 0.65Pb(Mg1/3Nb2/3)O3-0.35PbTiO3 ceramic prepared from fine powders

被引：18

作者：

Araujo, E. B.

Reis, R. N.

Guarany, C. A.

Meneses, C. T.

Sasaki, J. M.

Souza Filho, A. G.

Mendes Filho, J.

机构：

[1] Univ Estadual Paulista, Dept Quim & Fis, BR-15385000 Ilha Solteira, SP, Brazil

[2] Univ Fed Ceara, Dept Fis, BR-60455760 Fortaleza, Ceara, Brazil

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2007年 / 104卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

ceramics; chemical synthesis; ferroelectricity;

D O I：

10.1016/j.matchemphys.2007.02.041

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Slightly < 111 >-oriented 0.65Pb(Mg1/3Nb2/3)03-0.35PbTiO(3) ceramic was prepared using fine powders obtained by means of an alternative and promising chemical oxide precursor method. High quality samples with improved structural, microstructural, dielectric and ferroelectric properties were obtained. The dielectric constant value (epsilon similar to 2577) measured at 1 kHz is compared to unpoled < 112 > grain-oriented ceramics while the remanent polarization (P-r similar to 19-1 mu cm(-2)) is compared with random grain-oriented ceramics. These results point out the viability to produce ferroelectric PMN-PT ceramics of very good quality using powder precursors prepared from this chemical method. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：40 / 43

页数：4

共 14 条

[1] Preparation of PZT, PLZT and Bi4Ti3O12 thin films from oxide precursors [J].