液相掺杂法可提高ZnO压敏电阻器的性能

Improving of the performance of ZnO varistors by aqueous phase additives.

用液相掺杂法制备的粉体制成了ＺｎＯ压敏电阻器。ＳＥＭ测试分析及密度测试结果证明，瓷片的微观结构得以改善，从而提高了ＺｎＯ压敏电阻器的性能，其中非线性系数达到６７，通流能力为传统法制作的ＺｎＯ压敏电阻器的２倍。

The ZnO ceramics powder for varistors is prepared by adding aqueous phase additives. Test results showe that the performances of the varistors made from the power are improved. The non linear coefficient reaches 67 and the current capacity two times higher than that of the traditional varistors.(6 refs.)