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材料工程  2005 

PMN基复相弛豫铁电陶瓷电致应变及其温度稳定性的研究

Keywords: PMN基复相陶瓷,介电性能,电致应变,温度稳定性

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Abstract:

用熔盐法制备的不同居里温度的Pb(Mg1/3Nb2/3)O3基陶瓷预烧粉体和烧结粉体为初始高、低温组元,采用混合烧结法制备出PMN基弛豫铁电复相陶瓷,研究了PMN基复相陶瓷的介电性能和电致伸缩性能及其温度稳定性。结果表明采用烧结粉体制得的复相陶瓷不仅具有较大的介电常数(室温介电常数为8368)和电致应变2.8×10-4,而且在-10~+70℃范围内温度稳定性也较好。

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