摘要
研究表明小粒径β-Si C非线性好 (粒径 14～ 2 1μm时最好 ) ,与粒径相近的 α-Si C相比 ,β-Si C的非线性系数大、电阻率低。β-Si C防晕涂层的非线性系数随粒径减少或合成温度提高而变大 ;同粒度条件下 ,则随 β-Si C含量提高而增大 ,防晕电压升高。β-Si C调节 α-Si C防晕涂层的电阻率和非线性可有效地提高材料的非线性 。
Non linear electrical conductivity property of β-SiC and β-SiC epoxy ester lacquer composite coating layer was investigated. Smaller particle size β-SiC has lower resistance and greater non linear coefficient. β-SiC has the most excellent non linearity when particle size varies from 14~21 μm. Non linearity of composite coating layer become greater by increasing β-SiC powder particle size or synthesized temperature. Under the same particle size conditions, non linear coefficient and corona voltage increase with β-SiC content increased. Good effect has obtained. β-SiC is used to regulate the non linear electrical conductivity of α-SiC anti corona material.It can increase non linearity and improve anti corona property greatly.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2000年第3期12-14,共3页
High Voltage Engineering
关键词
大电机
防晕材料
非线性导电性
环氧脂漆
non-linear electrical conductivity β-SiC mi-cropowder epoxy ester lacquer
