Abstract

The effect of cationic and anionic impurities on the varistor properties of high-voltage ZnO ceramics with a ZnO content of 75 wt % and a weight ratio of oxides of alloying elements Bi₂O₃:Sb₂O₃:Al₂O₃:Co₃O₄:NiO = 1.00 : 0.45 : 0.80 : 0.65 : 0.53 has been studied. It was found that anionic Cl^–, F^–, SO₄^2–, PO₄^3– and cationic Li⁺, Na⁺, K⁺, Cs⁺ and Mg²⁺ impurities worsen, while cationic impurities Ca²⁺, Sr²⁺, Ba²⁺ significantly improve the properties of ceramics. With the introduction of 0.3 wt % BaO, ZnO-75 ceramics, promising for the production of high-voltage varistors, were obtained.

中文翻译：

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杂质对高压氧化锌陶瓷压敏电阻性能的影响

摘要

阳离子和阴离子杂质对ZnO含量为75 wt%和合金元素氧化物Bi ₂ O ₃ :Sb ₂ O ₃ :Al ₂ O ₃ :Co重量比的高压ZnO陶瓷压敏电阻性能的影响₃ O ₄ :NiO = 1.00 : 0.45 : 0.80 : 0.65 : 0.53 已被研究。发现阴离子 Cl ^– , F ^– , SO ₄ ^2- , PO ₄ ^3-和阳离子 Li ⁺ , Na ⁺ , K ⁺ , Cs ⁺和 Mg ²⁺杂质恶化，而阳离子杂质Ca ²⁺、Sr ²⁺、Ba ²⁺显着改善陶瓷的性能。通过引入 0.3 wt% BaO，获得了有望用于生产高压压敏电阻的 ZnO-75 陶瓷。