Percolation Threshold of Carbon Black-Polyethylene Composites
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概要
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In this paper, the percolation threshold of the carbon black-resin composites is discussed based on the experimental results of the changes in resistivity and relative permittivity for loading carbon black, the electric field dependence of current, and the critical exponent of conductivity. It was found that a formation of infinite clusters is interrupted by a tunneling gap in the volume fraction region of carbon black loading where the change in resistivity is extremely large. It was also found that the critical exponent of conductivity for the universal law of conductivity is satisfied if the percolation threshold is estimated at the volume fraction of carbon black where a nonohmic current behavior changes into an ohmic one. It is concluded that the percolation threshold should be defined at this volume fraction of carbon black.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 1997-08-15
著者
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Nakamura Shuhei
Department Of Biophysics Graduate School Of Science Kyoto University
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Sawa Goro
Department Of Electrical And Electronic Engineering Mie University
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KITAGAWA Keiichi
Gifu National College of Technology
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Saito Kazuhiko
Department Of Electrical And Computer Engineering Yokohama National University
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Kitagawa Keiichi
Gifu National College of Technology, Gifu 501-04, Japan
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Saito Kazuhiko
Department of Electrical Electronic Engineering, Mie University, Tsu 514, Japan
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Saito Kazuhiko
Department of Chemistry, The University of Tsukuba
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