Microstructure and electrical properties of ZnO-Pr6O11-CoO-Cr2O3-Dy2O3-based varistor ceramics

被引：26
作者：
Nahm, CW [1 ]
Park, JA
Kim, MJ
机构：
[1] Dong Eui Univ, Dept Elect Engn, Pusan 614714, South Korea
[2] Dong Eui Univ, Dept Informat & Mat Engn, Pusan 614714, South Korea
来源：
JOURNAL OF MATERIALS SCIENCE | 2004年 / 39卷 / 01期
关键词：
D O I：
10.1023/B:JMSC.0000007762.89222.ec
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of Dy2O3 incorporation on microstructure and electrical properties of ZnO-Pr6O11-CoO-Cr2O3- Dy2O3 (in short ZPCCD)-based varistors was investigated. Microstructure was examined by a scanning electron microscope (SEM). The average grain size (d) was determined by the lineal intercept method. The crystalline phases were identified by an X-ray diffractometry (XRD) with CuKα radiation. The density (ρ) of ZPCCD-based ceramics was measured by the Archimedes method.
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页码：307 / 309
页数：3
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