Time-Dependent Behavior of a Lead Titanate Zirconate Wafer under Constant Electric Fields at High Temperatures
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概要
- 論文の詳細を見る
A commercially available lead titanate zirconate (PZT) wafer that is poled in thickness direction is subjected to various constant magnitudes of through thickness electric field for about 1800 s and a subsequent zero electric field for about 1000 s at four different high temperatures. During the whole period of loading time, the variations of the electric displacement in thickness direction and the in-plane strain are measured and discussed in terms of mesoscopic domain switching and macroscopic polarization vector. It is found that the magnitude of the electric field needed for switching decreases with increase in temperature. The values of various material properties at high temperatures are also estimated. Finally, the linear relation between remanent through thickness polarization and remanent in-plane strain near the two opposite poled states is obtained and the role of the remanent polarization in thickness direction as a single macroscopic state variable is discussed.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2009-10-25
著者
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Lee Se
Department Of Dermatology Seoul National University College Of Medicine Laboratory Of Cutaneous Agin
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Kim Sang-joo
Department Of Mechanical And Information Engineering University Of Seoul
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LEE Chang-Hoan
Korea Institute of Science and Technology Information
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Kim Ju
Department Of Chemical And Biological Engineering Korea University
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Lee Seungje
Sehatech Co., Sindaebang 1-dong, Dongjak-gu, Seoul 156-787, Korea
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Kim Ju
Department of Mechanical and Information Engineering, University of Seoul, Dongdaemun-gu, Seoul 130-743, Korea
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Lee Chang-Hoan
Korea Institute of Science and Technology Information, Dongdaemun-gu, Seoul 130-743, Korea
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Lee Se
Department of Advanced Materials Engineering, Kyungsung University, 314-79 Daeyun-dong, Nam-gu, Busan 680-736, Korea
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Lee Se
Department of Mechanical and Information Engineering, University of Seoul, Dongdaemun-gu, Seoul 130-743, Korea
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Kim Ju
Department of Cardiology, Chonnam National University Hospital
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Kim Ju
Department of Cardiology, Cardiovascular Center, Clinical Trial Center, Chonnam National University Hospital
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