High Stability of Dielectric Permittivity for Pb(Mg1/3Nb2/3)O3-Based Composite Ceramics Prepared by Coating Method

摘要：

To improve the temperature stability of PMN(Pb(Mg1/3Nb2/3)O3)-based ceramics, PMN-based composite ceramics were prepared by co-sintering two kinds of ceramics with different curie temperature. One unit is MHT(0.82PMN (Pb (Mg1/3Nb2/3) O3) -0.18PT (PbTiO3) (the curie temperature Tm=74℃)), and the other unit is MLT (0.88PMN (Pb (Mg1/3Nb2/3) O3)-0.12BT (BaTiO3) (the curie temperature Tm=-50℃)). The effects of the sintering temperature and the ratio of high and low Tm units on dielectric temperature stability were studied. The results show that the temperature stability can be improved greatly by co-sintering and coating method. The results show that PMN(Pb(Mg1/3Nb2/3)O3)-based composite ceramics are promising candidate for practical applications.

关键词： PMN composite ceramics dielectric permittivity temperature stability

作者: Jingbo Zhao Hongliang Du Shaobo Qu Hongmei Zhang Zhuo Xu

作者单位: The College of Science, Air Force Engineering University, Xi’an, 710051, China State Key Laboratory of Solidification Processing, Northwestern Polytechnical University,Xi’an, 7100 Electronic Materials Research Laboratory, Key Laboratory of Educational Ministry, Xi’an Jiaotong Uni

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 450-456

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）