When the CeO2 content is 0.06mol%, potential gradient is maximum, improves about 30%, voltage ratio is lower, and leakage current is the lowest. So the optium content of CeO2 is 0.06mol% in this study.

• 当CeO_2含量为0.；06mol%25时，氧化锌压敏阀片的电位梯度达到极值，比添加CeO_2前的电位梯度提高约30%25，且压比较低，漏电流最小，因此本实验CeO_2添加量的最佳值为0