Electrical Properties of Bismuth-layered Structural CaxSr2-xBi4Ti5O18 Ceramics

摘要：

　　Effects of amount of Ca on crystal structure,microstructure,ferroelectric properties,and dielectric properties of the CaxSr2-xBi4Ti5O18 (CSBTi-x)ferroelectric ceramics were investigated.The results show that single-phase layered perovskite ferroelectrics were obtained and no appreciable secondary phase was found.Ca-doping results in a notable enlargement of remnant polarization 2Pr.The 2Pr of CSBT-0.15 reaches a large value,the remnant polarization 2Pr and coercive field 2Ec were 18.1 μC/cm2 and 120.2kV/cm,respectively.Dielectric constant and dielectric loss of CSBT-0.15 was also measured,showing dielectric constant εr=199~194 and dielectric loss tanδ=0.02~0.014 over the range of 100 kHz~ 1MHz,respectively.

关键词： CaxSr2-xBi4Ti5O18 Ferroelectric ceramics Remnant polarization

作者: S H Fan F Q Zhang Q D Che R Yu W Hu Q B Tian

作者单位: College of Material Science and Engineering, Shandong Jianzhu university,Jinan 250101,China

会议类型: 国际会议

会议名称: The Sixth China International Conference on High-Performance Ceramics(第六届中国先进陶瓷国际研讨会(CICC-6))

会议地点: 哈尔滨

会议语种:英文

页码: 282-285

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）