不锈钢基厚膜PTC热敏电阻浆料的制备与性能研究  

Synthesis and Properties of Thick Film PTC Thermistor Paste on Stainless Steel Substrate

作　　者：胡君遂[1] 唐珍兰[1] 堵永国[1] 张为军[1] 杨光[1] 

机构地区：[1]国防科技大学航天与材料工程学院,湖南长沙410073

出　　处：《贵金属》2007年第2期1-5,共5页Precious Metals

基　　金：国家高技术研究发展计划(863计划)资助项目(2004AA32G090)

摘　　要：以二氧化钌和氧化铜的混合物为功能相制备出不锈钢基厚膜PTC热敏电阻浆料。研究了功能相与玻璃相的配比、功能相的粒度对厚膜电阻方阻及电阻温度系数(TCR)的影响规律。结果表明:固定浆料中玻璃相的成分与含量(30wt%),控制功能相中RuO2的比例(45.4wt%～88.9wt%)或功能相的粒度(0.30～1.0μm),可制得具有不同方阻(1.5～12.8Ω/□)和TCR(2100～2900×10-6/℃)的厚膜PTC热敏电阻。The thick film PTC RuO2-CuO, as the conducting thermistor paste based on stainless steel was fabricated using the mixture of phase. The effects of compounding between the conducting phase and glass phase, granularity of the conducting phase on sheet resistivity and temperature coefficient resistivity （TCR） of the thick film PTC thermistor were studied. The results showed that fixing the glass composition and its content （30wt %） in the paste, controlling RuO2 proportion （45.4wt%-88.9wt%） in the conducting phase or granularity of the conducting phase （0.30～1.0μm）, the thick film PTC thermistor with different sheet resistivities （1.5-12.8Ω/□） and TCR （2100 - 2900×10^-6/℃） can be fabricated.

关 键 词：金属材料 厚膜PTC 热敏电阻浆料 不锈钢基板 二氧化钌 

分 类 号：O643.36[理学—物理化学]