With the increase of the concentration of CeO2, the room-temperature dielectric constant of the ceramic decreased, but CeO2 was helpful to improve the TCC curve in the negative temperature area.

• 随着CeO2含量的逐渐增加，陶瓷的室温损耗值呈现出单调递减的趋势，CeO2的加入可以有效改善负温区的容温特性。