Dielectric properties of nanophase Ag2HgI4 and Ag2HgI4-Al2O3 nanocomposites

被引：13
|
作者：
Potty, SSN
Khadar, MA [1 ]
机构：
[1] Univ Kerala, Dept Phys, Trivandrum 695581, Kerala, India
[2] Ctr Mat Elect Technol, Thrissur, India
来源：
BULLETIN OF MATERIALS SCIENCE | 2000年 / 23卷 / 05期
关键词：
nanophase materials; nanocomposites; dielectric properties;
D O I：
10.1007/BF02708385
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The dielectric properties of nanophase Ag2HgI4 and Ag2HgI4-Al2O3, nanocomposites at different frequencies have been studied over a temperature range covering the stability range of beta phase of Ag2HgI4 and beyond the beta to alpha phase transition temperature. epsilon', tan delta and sigma(a.c.) of nanophase Ag2HgI4 and Ag2HgI4-AI(2)O(3) nanocomposites were found to be larger than the reported values for polycrystalline pellets of Ag2HgI4, The dielectric properties of the nanocomposites were found to be a function of the wt,% of nano alumina, The observed changes are attributed to the grain boundary properties of nanophase materials and to the microsize space charge effects.
引用
收藏
页码：361 / 367
页数：7
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