摘要
本文以草酸沉淀法制备的Ni/PTC陶瓷为基础 ,就烧成气氛、热处理气氛、热处理温度和时间进行了深入研究。制备了具有低的室温电阻率和明显PTC效应的Ni/PTC陶瓷复合材料。提出了制备该复合材料的理想的工艺条件 ,即 :在弱还原气氛下烧成 ,在弱氧化气氛下进行热处理 ,并适当降低处理温度 。
The sintering and heat treatment techniques of the Ni/PTC ceramic composite prepared by oxal acid precipition method were investigated.This composite displays an obvious PTC property.The ideal techniques of the composite were put forward,such as:the sintering atmosphere and heat treatment,the temperature and time of heat treatment.
出处
《硅酸盐通报》
CAS
CSCD
2001年第3期50-54,共5页
Bulletin of the Chinese Ceramic Society
