カーボンブラック•ポリエチレン複合体のパーコレーション閾値前の電気伝導機構

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タイトル別名
  • Electrical Conduction Mechanism of Carbon Black Polyethylene Composites Below the Percolation Threshold
  • カーボンブラック・ポリエチレン複合体のパーコレーション閾値前の電気伝導機構
  • カーボン ブラック ポリエチレン フクゴウタイ ノ パーコレーション イキチ

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The electrical conduction mechanism of composites below the percolation threshold has been generally discussed with the hopping conduction model. In this article, the electrical conduction mechanism of carbon black-polyethylene composites below the percolation threshold is discussed based on the frequency dependence of conductivity in the range of 20 Hz to 1 MHz. There are two components for observed ac loss current. One is independent of frequency and becomes prevalent in low frequencies just below the percolation threshold and under high electric field. The other is proportional to the frequency of applied ac voltage in high frequencies and its origin is not clear. These results support the conclusion that the electrical conduction mechanism below the percolation threshold is tunneling.

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