Structure and dielectric properties of bismuth-based dielectric ceramics

被引：10

作者：

Hu, Y ^{[1
]}

Huang, CL ^{[1
]}

机构：

[1] Tatung Univ, Dept Mat Engn, Taipei, Taiwan

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2001年 / 72卷 / 01期

关键词：

dielectric properties; glass; ceramics; sol-gel; fumed silica;

D O I：

10.1016/S0254-0584(01)00309-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Structure and dielectric properties of the group of Bi1.2+2yZn1.2-2yNb1.6O7+y (with y = 0-0.3) compositions have been studied. It was found that the cubic pyrochlore phase is predominant in these compositions under 1000 degreesC heat treatment. X-ray diffraction analysis and Raman spectra were used to investigate the crystal structure. Dielectric constant and dielectric loss of the samples were found to increase linearly with increasing of the y value for y less than or equal to 0.15. Structural defects such as porosity and second phase are responsible for the apparent deterioration of their dielectric properties for y > 0.15. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：60 / 65

页数：6

共 17 条

[1] CRYSTAL CHEMISTRY OF PYROCHLORE [J].