Electrical properties and fabrication of porous BaTiO3-based ceramics

被引：3
|
作者：
Kim, JG [1 ]
机构：
[1] Inha Univ, Inst Adv Mat, Inchon 402751, South Korea
来源：
JOURNAL OF MATERIALS SCIENCE LETTERS | 2002年 / 21卷 / 06期
关键词：
D O I：
10.1023/A:1015334623555
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Porous BaTiO3-based ceramics (referred to as BST) were fabricated by adding corn- or potato-starch. The effect of starch on the microstructure and electrical properties was determined. Addition of starch into BST ceramics gave rise to porous BST ceramics, and the porosity largely increased and the grain size slightly decreased with increasing starch contents. Furthermore, the semiconducting BST ceramics showed excellent positive temperature coefficient of resistivity (PTCR) characteristics by adding 1-20 wt% of starch.
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页码：477 / 479
页数：3
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