Tunable PTC effect in composite filled with ZnO-varistor particles

被引：0

作者：

Kariya, S

Mizutani, M

Ota, T

Daimon, K

Hikichi, Y

Miyazaki, H

Suzuki, H

机构：

[1] Nagoya Inst Technol, Ceram Res Lab, Tajimi 507071, Japan

[2] Shizuoka Univ, Dept Mat Sci, Hamamatsu, Shizuoka 4328561, Japan

[3] Nagoya Inst Technol, Dept Mat Sci & Engn, Showa Ku, Nagoya, Aichi 4668555, Japan

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2002年 / 110卷 / 04期

关键词：

composite; PTC thermistor; varistor;

D O I：

10.2109/jcersj.110.320

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A new type of composite PTC thermistor was fabricated from ZnO-varistor particles and silicone rubber. The non-ohmic varistor characteristics were held in the composites. The ZnO-varistor particles were found to behave as a conducting filler at voltage higher than the varistor voltage. The PTC effect appeared in the composites containing varistor particles with volume fraction over the percolation threshold (greater than or equal to 250 vol%). The electrical resistivity at room temperature and the temperature region showing PTC effect varied according to the applied voltage.

引用

页码：320 / 324

页数：5

共 10 条

[1] NEW CLASS OF SWITCHING MATERIALS [J].