Effects of particle size of BaTiO3 powder on the dielectric properties of BaTiO3/polyvinylidene fluoride composites

被引：0
|
作者：
Hsing-I Hsiang
Kwo-Yin Lin
Fu-Su Yen
Chi-Yuen Hwang
机构：
[1] I-Shou University,Department of Materials Science and Engineering
[2] National Cheng Kung University,Department of Mineral and Petroleum Engineering
来源：
Journal of Materials Science | 2001年 / 36卷
关键词：
Polymer; Particle Size; Fluoride; Dielectric Constant; Hysteresis Loop;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effects of particle size of fine BaTiO3powder on dielectric properties of BaTiO3/polyvinylidene fluoride (PVDF) composites were investigated. When the frequency of the applied field was less than 100 kHz, the dielectric constant and loss for BaTiO3/PVDF composites decreased with increasing BaTiO3particle size. When the frequency was greater than 100 kHz, the opposite results were obtained. The resistivity increased with increasing BaTiO3particle size, whereas the open areas of hysteresis loops decreased gradually. The degree of poling efficiency for BaTiO3/PVDF composites increased with increasing BaTiO3particle size. The BaTiO3particle size dependence of the dielectric properties of BaTiO3/PVDF composites is explained by space charge effects at the interface between BaTiO3and PVDF, and domain configurations (single or multi-domain) of the BaTiO3powders.
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页码：3809 / 3815
页数：6
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