Dependence of Properties of High Voltage Zinc Oxide Varistor from Antimony and Nickel Oxides
| Autor: | E. L. Tikhomirova, O. G. Gromov, Yu. A. Savel’ev |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
General Chemical Engineering
Non-blocking I/O chemistry.chemical_element Varistor High voltage 02 engineering and technology General Chemistry Zinc 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Antimony chemistry Chemical engineering Nickel oxides visual_art visual_art.visual_art_medium Breakdown voltage Ceramic 0210 nano-technology |
| Zdroj: | Russian Journal of Applied Chemistry. 92:1232-1238 |
| ISSN: | 1608-3296 1070-4272 |
| DOI: | 10.1134/s1070427219090076 |
| Popis: | 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, A12O3 4.66, Co2O3 3.80, NiO 3.09, has a minimum leakage current density Iout ≤ 0.1 μA cm-2, breakdown voltage Ub = 4.1kV mm-1, nonlinearity coefficient α = 65. The resulting ceramics are promising for the production of varistors with high stability of performance. |
| Databáze: | OpenAIRE |
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