电气技术2024，Vol.25Issue(9)：42-45,4.
不同形貌Co3O4对氧化锌压敏电阻器电性能的影响
Study on the influence of different morphology of Co3O4 on the electrical properties of varistor
马雪丽 1何欣1
作者信息
- 1. 西安市西无二电子信息集团有限公司,西安 710015
- 折叠
摘要
Abstract
In order to improve that electrical properties of zinc oxide varistor,this paper conducts a series of tests to study the influence of needle-like and spherical Co3O4 on the varistor. Co,as a modified element,plays an important role in the electrical properties of varistor. The Co used in this paper is prepared by chemical co-precipitation method. Needle-like Co3O4 is prepared from 99.7％ oxalic acid solution and analytically pure Co(NO3)2. Spherical Co3O4 is prepared from food-grade ammonium bicarbonate analytically pure Co(NO3)2. It is found that the varistor doped with needle-like Co3O4 is superior to the varistor doped with spherical Co3O4 in terms of 8/20μs wave current capacity and power frequency overvoltage withstand performance.关键词
氧化锌压敏电阻器/形貌/化学共沉淀法/通流能力/能量耐量/工频过电压耐受试验Key words
zinc oxide varistor/morphology/chemical co-precipitation method/flow capacity/energy tolerance/power frequency overvoltage withstand test引用本文复制引用
马雪丽,何欣..不同形貌Co3O4对氧化锌压敏电阻器电性能的影响[J].电气技术,2024,25(9):42-45,4.
