Electrical breakdown of the positive temperature coefficient of resistivity barium titanate ceramics

被引：7

作者：

Kim, DH ^{[1
]}

Um, WS ^{[1
]}

Kim, HG ^{[1
]}

机构：

[1] KOREA ACAD IND TECHNOL,TEST & INSPECT CTR,MAT ANAL LAB,SEOUL,SOUTH KOREA

来源：

JOURNAL OF MATERIALS RESEARCH | 1996年 / 11卷 / 08期

关键词：

D O I：

10.1557/JMR.1996.0252

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Positive temperature coefficient of resistivity barium titanate ceramic is a semiconductor at room temperature, so it is self-heated under certain applied voltage, and then changes into an insulator. The electrical breakdown has been investigated with the resistance-temperature characteristics of the three samples which have different compositions. The grain size effect on the breakdown voltage also is discussed. As the applied voltage increased, the electrical breakdown was initiated when the specimen interior was heated above the temperature corresponding to the maximum resistance on the resistance-temperature curves by joule heat.

引用

页码：2002 / 2008

页数：7