Processing and properties of (1-x)Pb(Mg1/3Nb2/3)O3•xPbTiO3 solid solutions from PbO- and MgO-excess compositions

被引：31

作者：

Kusumoto, K ^{[1
]}

Sekiya, T ^{[1
]}

机构：

[1] Natl Ind Res Inst Nagoya, Kita Ku, Nagoya, Aichi 462, Japan

来源：

MATERIALS RESEARCH BULLETIN | 1998年 / 33卷 / 09期

关键词：

electronic materials; chemical synthesis; dielectric properties;

D O I：

10.1016/S0025-5408(98)00111-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Perovskite solid solutions (1 - x)Pb(Mg1/3Nb2/3)O-3.xPbTiO(3) with x between 0.06 and 0.14 were prepared by heat treatment followed by acid treatment of mixtures containing both PbO and MgO in amounts greater than in the perovskite composition. For example, heat treatment of 4PbO + 1.5MgO + 0.9Nb(2)O(5) + 0.3TiO(2) mixture at 900 degrees C for 1 h produced the perovskite with x = 0.1 without the formation of pyrochlore phase. The Pb(Mg1/3Nb2/3)O-3-PbTiO3 (PMN-PT) solid solutions were crystallized into discrete cubes several micrometers in size. After sintering these particles at 1290 degrees C for 2 h in a PbO atmosphere, the relative density of the ceramics was 93% or more. The ceramics with x = 0.08-0.1 showed a large electric field-induced strain near room temperature. (C) 1998 Elsevier Science Ltd.

引用

页码：1367 / 1375

页数：9

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