Preparation of Pb(Mg1/3Nb2/3)O3 Pb(Zn1/3Nb2/3)O3 ceramics by the B-site precursor method and dielectric characteristics

被引：31
作者：
Chae, MC [1 ]
Kim, NK [1 ]
Kim, JJ [1 ]
Cho, SH [1 ]
机构：
[1] Kyungpook Natl Univ, Dept Inorgan Mat Engn, Taegu 702701, South Korea
来源：
JOURNAL OF MATERIALS SCIENCE | 1998年 / 33卷 / 05期
关键词：
D O I：
10.1023/A:1004362717685
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Powders in the Pb(Mg1/3Nb2/3)O-3-Pb(Zn1/3Nb2/3)O-3 system, with a high perovskite yield, were prepared by a B-site precursor method. PbO was added to pre-reacted B-site components of Mg1-xZnxNb2O6 solid solution, which was further calcined to form a perovskite structure. Perovskite phase contents and lattice parameters were obtained from X-ray analyses. Weak-field low-frequency dielectric constants and losses of sintered pellets were measured as functions of composition, temperature and frequency. Dielectric relaxation behaviours were investigated in terms of diffuseness coefficients. Microstructures were observed to correlate with other characteristics. (C) 1998 Chapman & Hall.
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页码：1343 / 1348
页数：6
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