Core/shell structure in Pb(Mg1/3Nb2/3)O3-PbTiO3

被引：2

作者：

Mishima, T ^{[1
]}

Kamigaki, K ^{[1
]}

Nambu, S ^{[1
]}

机构：

[1] Kyocera Corp, R&D Ctr Kagoshima, Kagoshima 8994312, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1998年 / 37卷 / 9B期

关键词：

PMN-PT; hot press; dielectric property; TEM; core/shell structure; relaxor ferroelectric;

D O I：

10.1143/JJAP.37.5253

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Law-temperature hot-pressed Pb(Mg1/3Nb2/3)O-3 (PMN)-PbTiO3(PT) materials exhibited a small temperature dependence of dielectric constants. The microstructure was studied by means of a transmission electron microscope (TEM). It was found that a core/shell structure with a pure PMN core and a PMN-PT shell was formed in the majority of grains. The small temperature dependence of dielectric constants was attributed to the existence of the core/shell structure. It was also found that the core/shell structure was formed at the early stage of hot-pressing and that diffusion of Ti was suppressed under pressure once the material became dense.

引用

页码：5253 / 5256

页数：4

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