壓敏電阻器電極材料

摘要：從金屬與半導體陶瓷接觸機理出發，選擇功函數比半導體陶瓷功函數小的金屬作為電極。本文綜述了壓敏電阻器常用的電極材料：導電漿料、無機鹽和金屬材料。導電漿料有貴金屬漿料和賤金屬漿料；無機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