壓敏電阻器電極材料

摘要：從金屬與半導(dǎo)體陶瓷接觸機(jī)理出發(fā)，選擇功函數(shù)比半導(dǎo)體陶瓷功函數(shù)小的金屬作為電極。本文綜述了壓敏電阻器常用的電極材料：導(dǎo)電漿料、無(wú)機(jī)鹽和金屬材料。導(dǎo)電漿料有貴金屬漿料和賤金屬漿料；無(wú)機(jī)鹽有氧化物和硫酸鹽；金屬材料有線材和粉末。壓敏電阻器電極材料發(fā)展方向是賤金屬化。 敘詞：壓敏電阻器 電極材料 賤金屬化 Abstract：According to the contact mechanism of metal and semiconductive ceramic, the work function of the selected metal should be smaller than that of semiconductive ceramic. This paper introduces the common electrode materials, including conductive pastes (noble metal paste and base metal paste), inorganic salts (oxide and sulphate) and metal materials (wire and powder). Besides, the development direction of varistors electrode material is base metallization. Keyword：Varistor, Electrode material, Base metallization