Abstract
Basic results on the development of an electrically conductive, wear and corrosion resistant ceramic composite material are presented. From a closer examination of the composition dependence of the electrical conductivity in the binary system ZrB2-B4C we determined the percolation threshold at which an interconnected network of electrically conductive phase arises: for the system investigated, at a critical volume fraction of about 10 up to 25 Vol.-% ZrB2 the electrical conductivity increased rapidly and above 40 Vol.-% ZrB2 an electrical conductivity similar to metals was observed (σe = 105–107 S.m-1).
Based on ZrB2 as major component and mainly B4C as minor component a ceramic composite material was obtained by net shape processing procedures. It exhibits a metal-like electrical conductivity, a high resistance against wear and oxidation as well as promising mechanical properties.
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© 1998 Kluwer Academic Publishers
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van de Goor, G., Sägesser, P., Berroth, K. (1998). Electrically Conductive Ceramic Composites. In: Haddad, Y.M. (eds) Advanced Multilayered and Fibre-Reinforced Composites. NATO ASI Series, vol 43. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0868-6_20
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DOI: https://doi.org/10.1007/978-94-007-0868-6_20
Publisher Name: Springer, Dordrecht
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