Percolation Approach to the Barrier-Controlled Conductivity of Ceramic Composites

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概要

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• The temperature and composition dependence of the barrier-controlled conductivity of two-phase composites is analysed reducing the problem to that of the site-bond percolation. It is shown that the critical barrier height depends on the volume fraction φ of the conducting phase, this giving rise to a specific φ-dependence of the activation energy of the conductivity near the percolation threshold. Approximate relations suggested for the phase boundary function of the site-bond problem make it possible to evaluate the distribution of inter-grain barrier characteristics from the measurements of the temperature and composition dependence of the conductivity near the percolation threshold.

• 社団法人日本物理学会の論文
• 1995-08-15

著者

• Zvyagin P.

  Department Of Physics School Of Science And Engineering Waseda University

• Zvyagin Igor

  Department Of Physics School Of Science And Engineering Waseda University

• KINASE Wataru

  Department of Physics,School of Science and Engineering,Waseda University

• Kinase W

  Department Of Physics School Of Science And Engineering Waseda University

• Kinase Wataru

  Department Of Physics Faculity Of General Education Waseda University

• Kinase Wataru

  Deparment Of Physics Wasea University

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