摘要
通过对两种共沉法制备掺杂氧化锌压敏电阻的研究 ,证明包膜共沉法比混合离子共沉法更易恒定组成 ,并且具有更好的压敏性能。通过对包膜共沉条件包括温度、分散剂、搅拌强度等的进一步研究 ,确定了包膜共沉的最佳条件。用此法制得的压敏电阻 ,其主要电性能指标达到 :泄漏电流 5 0 μA ,击穿电压 180V/mm ,最大非线性系数 44。
The research results of preparing zinc oxide varistor ceramic powders by coprecipitation process show that the coprecipitation coating process obtained constant components more easily than the ion mixing coprecipitation process, and displayed excellent performances. By means of further investigating of coprecipitation conditions temperature, the surfactants and the degree of agitation, the optimal coprecipitation conditions were determined. Varistors prepared by coprecipitation chemical method display electrical properties leak current 50 μA, strike out voltage 180 V/mm and the biggest non linearity coefficient 44.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2000年第4期579-583,共5页
The Chinese Journal of Nonferrous Metals
