Size Effect of Uniaxial Stress Affecting Dielectric Response in Barium Titanate
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概要
- 論文の詳細を見る
Size effect on uniaxial stress affecting dielectric response in barium titanate system is studied in this paper. From experiments we know that, dielectric constant decreases with increasing loading stress. The change rates of dielectric constants for different grain sizes are different, samples with finer grains have smaller change rate. In theory, we can derive out that dielectric constant will decrease with loading stress by Landau–Ginsberg–Devonshire model. Furthermore, the grain size effect is analyzed with a complex model. The volume fraction of the grain boundaries will increase, and they will bear more part of the total loading when decreasing grain size. This will reduce the change rate of dielectric constant for finer grains.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2010-10-25
著者
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Wang Xiaohui
State Key Laboratory Of New Ceramics And Fine Processing Department Of Materials Science And Enginee
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Li Longtu
State Key Laboratory Of New Ceramics And Fine Processing Department Of Materials Science And Enginee
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Zhang Yichi
State Key Lab of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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Peng Bin
State Key Lab of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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Sun Tieyu
State Key Lab of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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Li Longtu
State Key Lab of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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Wang Xiaohui
State Key Lab of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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