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
收藏
页码：5253 / 5256
页数：4
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