Evaluation of Ferroelectric Properties of Piezoelectric Ceramics Based on Crystallographic Homogenization Method and Crystal Orientation Analysis by SEM・EBSD Technique
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概要
- 論文の詳細を見る
Macroscopic ferroelectric properties of piezoelectric polycrystals are strongly affected by microscopic inhomogeneous crystal structure. In our previous study, a multi-scale finite element method based on crystallographic homogenization method has been developed to estimate macroscopic properties considering microscopic crystal morphology. In this paper, the crystal orientation distribution of polycrystalline barium titanate has been measured by SEM・EBSD technique, and the measured crystal orientation distribution has been introduced to the microscopic finite element model. As the prediction of macroscopic properties depends on the sampling conditions of the measured crystal orientations, the effects of number of sampling points and sampling area have been investigated. As a result, the effective sampling conditions have been clarified to estimate macroscopic ferroelectric properties.
- 一般社団法人日本機械学会の論文
- 2006-04-15
著者
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TSUCHIYA Kazuyoshi
Department of Precision Engineering, Tokai University
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Nakamachi Eiji
Department Of Mechanical Engineering Osaka Institute Of Technology
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Yoshida Toshihiro
Department Of Mechanical Engineering Osaka Institute Of Technology (at Present; Division Of Advanced
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Ueda Sei
Department Of Mechanical Engineering Faculty Of Engineering Osaka Institute Of Technology
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Ueda Sei
Department Of Mechanical Engineering Osaka Institute Of Technology
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Uetsuji Yasutomo
Department Of Mechanical Engineering Osaka Institute Of Technology
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Tsuchiya Kazuyoshi
Department Of Precision Engineering Tokai University
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YAMAKAWA Takayuki
Department of Mechanical Engineering, Graduate School of Engineering, Osaka Institute of Technology
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Yamakawa Takayuki
Department Of Mechanical Engineering Graduate School Of Engineering Osaka Institute Of Technology (a
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YAMAKAWA Takayuki
Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University
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