标题:The effect of Ca or Ba substitution on the properties in Bi0.87La0.05B0.08FeO3 (B=Ca, Ba) ceramics
作者:Jiang, Qinghui; Zhao, Shujin; Qi, Yongxin; Yang, Ping
通讯作者:Jiang, QH
作者机构:[Jiang, Qinghui; Yang, Ping] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China.; [Zhao, Shujin] Jiamusi Univ, Coll Mat Sci & E 更多
会议名称:11th International Conference in Asia of the International-Union-of-Materials-Research-Societies
会议日期:SEP 25-28, 2010
来源:FUNCTIONAL AND ELECTRONIC MATERIALS
出版年:2011
卷:687
页码:422-+
DOI:10.4028/www.scientific.net/MSF.687.422
关键词:multiferroic; BiFeO3; spark plasma sintering; ferroelectric
摘要:Multiferroic Bi0.87La0.05B0.08FeO3 (B=Ca2+, Ba2+) ceramics were prepared by sol-gel method and spark plasma sintering with the protection of CeO2 powders. The substitution of Ba increases the samples' magnetic properties, which leads to higher leakage current and makes the bulk ceramics high dielectric loss (0.1-0.2). In contrast, Bi0.87La0.05Ca0.08FeO3 ceramics have high breakdown field strength (220 kV/cm) and low loss (tan delta similar to 2%), and the dielectric constant is stable (about 100) in the frequency between 10(2) and 10(6) Hz. Meanwhile, Ca doping improves the ceramic coercive field and ferroelectric domains do not switch under 220 kV/cm, leading to slim ferroelectric loops.
收录类别:CPCI-S;SCOPUS
资源类型:会议论文;期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-79959936268&doi=10.4028%2fwww.scientific.net%2fMSF.687.422&partnerID=40&md5=c734f5ac9fa8c2ea1213221c7eff7495
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