Dependence of Properties of High Voltage Zinc Oxide Varistor from Antimony and Nickel Oxides

被引：2

作者：

Gromov, O. G. ^{[1
]}

Tikhomirova, E. L. ^{[1
]}

Savel'ev, Yu. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Kola Sci Ctr, Tananaev Inst Chem Rare Elements & Mineral Resour, Apatity 184209, Murmansk Oblast, Russia

来源：

RUSSIAN JOURNAL OF APPLIED CHEMISTRY | 2019年 / 92卷 / 09期

关键词：

ZnO varistor ceramics; composition; combustion synthesis; sintering; isothermal exposure; varistor properties; COMBUSTION SYNTHESIS; ZNO; POWDERS;

D O I：

10.1134/S1070427219090076

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Studies were carried out to reduce the leakage current of high-voltage ZnO varistor ceramics by varying Sb2O3 and NiO content in a ZnO-Bi2O3-Sb2O3-Al2O3-Co3O4-NiO. It was found that the ceramic composition (wt %): ZnO 80, Bi2O3 5.83, Sb2O3 2.62, A1(2)O(3) 4.66, Co2O3 3.80, NiO 3.09, has a minimum leakage current density I-out <= 0.1 mu A cm(-2), breakdown voltage U-b = 4.1kV mm(-1), nonlinearity coefficient alpha = 65. The resulting ceramics are promising for the production of varistors with high stability of performance.

引用

页码：1232 / 1238

页数：7

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