Phase evolution and ferroelectric behavior in BaTiO_3-BiScO_3-PbTiO_3 ceramics(<Feature>Glass and Ceramic Materials for Photonics)
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概要
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Phase evolution and ferroelectric behavior in 0.8BaTiO_3-(0.2-x) BiScO3-xPbTiO_3 ceramics, x=0-0.20, has been investigated in this paper. The phase assemblage and lattice parameters indicate the appearance of tetragonal-rhombohedral phase transition and the existence of a MPB region in the composition range x=0.15-0.20. All these compositions exhibit relaxor ferroelectric behavior due to cation disorder for the substitution on the A-site by Bi and on the B-site by Sc. The dielectric permittivity of the specimens as well as the polarization decreases with increasing BiScO_3. However, close to MPB region, the composition with dominance of rhombohedral phase (x=0.15) exhibits higher remnant polarization than that with tetragonal for the more reorientational directions of the rhombohedral phase than that of the tetragonal one (x=0.17).
- 社団法人日本セラミックス協会の論文
- 2008-10-01
著者
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LIU Yang
State Key Laboratory of Natural and Biomimetic Drugs and School of Pharmaceutical Sciences, Peking U
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Cao Minghe
State Key Laboratory Of Advanced Technology For Materials Synthesis And Processing Wuhan University
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YAO Zhonghua
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University
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LIU Hanxing
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University
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LI Zhuo
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University
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CHENG Xiangbang
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University
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HAO Hua
Department of material science, Wuhan University of Technology
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Hao Hua
Department Of Material Science Wuhan University Of Technology
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Li Zhuo
State Key Laboratory Of Advanced Technology For Materials Synthesis And Processing Wuhan University
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Liu Hanxing
State Key Laboratory Of Advanced Technology For Materials Synthesis And Processing Wuhan University
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Yao Zhonghua
State Key Laboratory Of Advanced Technology For Materials Synthesis And Processing Wuhan University
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Cheng Xiangbang
State Key Laboratory Of Advanced Technology For Materials Synthesis And Processing Wuhan University
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Liu Yang
State Key Laboratory Of Advanced Technology For Materials Synthesis And Processing Wuhan University
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