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Computersimulations of the Dielectric Breakdown in Ceramics Based on Laplace'S Equation

  • Ralf J. Köller (a1)

Abstract

In this work, the benefits of a modern personal computer are used to get a deeper insight into the processes occurring in a ceramic material just before and during a dielectric breakdown. Especially, a model to simulate the thermal breakdown behavior in a two-phase material is presented, which is based on a random resistor network. To study the influence of different parameters on the thermal breakdown, simulations were done changing the values of a set of six variables, e.g. external voltage, resistivity, etc. The resulting plots time vs. maximum temperature are shown.

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[1] Köller, R., Kranzmann, A., Petzow, G., Proc. 1. EuroMat, Aachen, (1988).
[2] Yoshimura, M., Bowen, H.K., J. Am. Cer. Soc. 64 (7), (1981).
[3] Niemeyer, L., Pietronero, L., Wiesmann, H., Phys. Rev. Lett. 52 (12), (1984).
[4] Jansson, P., Grimvall, G., J. Phys. D: Appl. Phys. 18, 893 (1985).

Computersimulations of the Dielectric Breakdown in Ceramics Based on Laplace'S Equation

  • Ralf J. Köller (a1)

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