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Static and dynamic electrical breakdown in conducting filled-polymers

Author

Listed:
  • Lamaignère, L.
  • Carmona, F.
  • Sornette, D.

Abstract

The electrical resistance of a percolating medium made of a polymer filled with conductive particles may undergo a steep increase over a narrow temperature range above room temperature. A likely mechanism for the effect is the loss of interparticle contact inducing a weakening of the connectivity of the medium as temperature is increased. When Joule heating is used, the sample behavior depends strongly on whether a tension or current source is used. We show that in the first case, at any value of the voltage drop across the sample, a stable state is reached; on the contrary when a convenient exciting current is used, the sample resistance may diverge spontaneously with time. We demonstrate that most of these behaviors are compatible with the predictions of a random thermal fuse model.

Suggested Citation

  • Lamaignère, L. & Carmona, F. & Sornette, D., 1997. "Static and dynamic electrical breakdown in conducting filled-polymers," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 241(1), pages 328-333.
    • Handle: RePEc:eee:phsmap:v:241:y:1997:i:1:p:328-333
    DOI: 10.1016/S0378-4371(97)00102-7
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    References listed on IDEAS

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    1. Lugo, A.I. & Lugo-Mercado, H. & Badillo, J. & Beale, A. & Santiago, M. & Rivera, L., 1987. "Response of Tanier to different water regimes," 23rd Annual Meeting, August 23-28, 1987, St. John's, Antigua 260362, Caribbean Food Crops Society.
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