摘要:为了提高ZnO压敏电阻器的性能,采用Sol-Gel法制备复合纳米添加剂.用该复合添加剂、ZnO及SiO2混合球磨后的粉体制备了Φ10 mm×1 mm氧化锌压敏电阻器元件,并对其性能进行了测试、分析.结果表明:Sol-Gel方法制成的元件具有粉体掺杂均匀、晶粒粒径小、分布均匀,其电性能也较传统工艺有很大提高,8/20 μs通流能力达到了2 700 A,2 ms方波能量耐受能力超过705.6 J/cm^3,漏电流约为0.3 μA,非线性系数为53.
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