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学科主题: Materials Science
题名: A combination method for improving electrical property of Calcium bismuth niobate ceramics
作者: Chen Huanbei; Shen Bo; Xu Jinbao; Zhai Jiwei
关键词: Texture ; High-temperature ; Piezoelectric
刊名: JOURNAL OF ELECTROCERAMICS
发表日期: 2013
DOI: 10.1007/s10832-012-9774-8
卷: 30, 期:3, 页:133-138
收录类别: SCI
资助者: National Natural Science Foundation of China 50932007; Chinese Academy of Sciences; Western Light Foundation Program of Chinese Academy of Sciences
摘要: Calcium bismuth niobate CaBi2Nb2O9 (CBN) ceramic is a promising candidate for high-temperature piezoelectric applications due to its high Curie temperature. However, the extremely low piezoelectric properties hinder its application. A combination method with element doping and texturing was used to improve the electric properties of CBN ceramic. First of all, the Mn element was chosen to be doped to improve the piezoelectric and resistance properties of CBN ceramic. Then, an optimal composition was subsequently textured by templated grain growth (TGG) method to further improve the piezoelectric properties. The piezoelectric properties, Curie temperature (Tc), and resistivity of textured Ca0.95Mn0.05Bi2Nb2O9 ceramics (d (33) = 21, k (p) = 10.9 %, Tc = 942 A degrees C, rho = 2.1 x 10(5)Omega A center dot cm at 600 A degrees C) were improved obviously compared to pure random CBN ceramics (d (33) = 6, k (p) = 4.6 %, Tc = 930 A degrees C, rho = 0.6 x 10(5)Omega A center dot cm at 600 A degrees C). Furthermore, it has excellent resistance to thermal depoling and keep about 5.7 % kp until the temperature up to 600 A degrees C. This combination method makes the textured Ca0.95Mn0.05Bi2Nb2O9 ceramics to be a promising candidate for high-temperature piezoelectric applications.
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内容类型: 期刊论文
URI标识: http://ir.xjipc.cas.cn/handle/365002/2666
Appears in Collections:材料物理与化学研究室_期刊论文

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作者单位: Tongji Univ, Funct Mat Res Lab, Shanghai 200092, Peoples R China;Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China

Recommended Citation:
Chen Huanbei,Shen Bo,Xu Jinbao,et al. A combination method for improving electrical property of Calcium bismuth niobate ceramics[J]. JOURNAL OF ELECTROCERAMICS,2013,30(3):133-138.
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