| 摘要 |
A high resistivity layer is disclosed for a medal oxide voltage-nonlinear resistor (varistor) for arrestors and surge absorbers of the type having a sintered body containing zinc oxide as a major component and two spaced electrodes attached to the surface of the body wherein the electrodes are insulated from one another by the high resistivity layer. The high resistivity layer of the invention consists essentially of at least zinc ferrate (III). The high resistivity layer is formed by sintering a slurry containing ferric oxide (Fe2O3) as a major component.
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