Characterization and dielectric properties of Ba5NdZnM9O30 (M=Nb, Ta) ceramics

被引:24
作者
Zhang, H [1 ]
Fang, L [1 ]
Yang, JF [1 ]
Yuan, RZ [1 ]
Liu, HX [1 ]
机构
[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1023/B:JMSE.0000024235.65579.03
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Ba5NdZnM9O30 (M=Nb, Ta) ceramics were prepared by the conventional high temperature solid state reaction route. The sintered samples were characterized by X-ray diffraction and scanning electron microscopy methods. They belong to paraelectric phases of filled tetragonal tungsten bronze structure at room temperature and have high dielectric constants of 282 and 85, combined with low dielectric losses of 0.0048 and 0.0081 at 1 MHz for Nb- and Ta-based ceramics, respectively. (C) 2004 Kluwer Academic Publishers.
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页码:327 / 329
页数:3
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