FIELD: manufacturing technology.;SUBSTANCE: invention relates to methods of producing varistor ceramics and can be used in power engineering when producing high-voltage varistors, which are the main element of nonlinear overvoltage limiters. High-voltage oxide-zinc varistor ceramics contains oxides of zinc, bismuth, antimony, aluminum, cobalt and nickel in following quantitative ratio, wt. %: ZnO 77.5–82.5; Bi2O3 4.66–6.56; Sb2O3 2.05–2.95; Al2O3 4.08–5.83; Co2O3 3.32–4.37; NiO 1.92–3.48. Antimony and nickel oxides are related as 0.66–1.51. Technical result of invention is reduction of varistor ceramics leakage current density at provision of high breakdown voltage and non-linearity factor.;EFFECT: obtained varistor ceramics has breakdown voltage 3,7–5,1 kV/mm, nonlinearity coefficient 56–74, leakage current density 0,1–0,2 mcA/cm2 and less.;1 cl, 9 ex, 1 tbl
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机译：压敏电阻陶瓷的制造方法技术领域本发明涉及压敏电阻陶瓷的制造方法，并且在制造作为非线性过压限制器的主要元件的高压压敏电阻时可用于电力工程。高压氧化物-锌压敏电阻陶瓷按以下定量比（重量比）包含锌，铋，锑，铝，钴和镍的氧化物。 ％：ZnO 77.5–82.5; Bi 2 O 3 4.66–6.56; Sb 2 O 3 2.05–2.95; Al 2 O 3 4.08–5.83; Co 2 O 3 3.32–4.37; NiO 1.92–3.48。锑和氧化镍的相关系数为0.66-1.51。发明的技术成果是在提供高击穿电压和非线性因子的情况下降低了压敏陶瓷漏电流密度。效果：所得压敏陶瓷的击穿电压为3.7-5.1 kV / mm，非线性系数为56-74，泄漏电流密度0,1–0,2 mcA / cm 2 及以下。; 1 cl，9 ex，1 tbl
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