Electrical properties of SiC 3--dimensional network

Chin J Mater Res

2004, Vol. 18

Issue (4): 365-372 DOI:

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Electrical properties of SiC 3--dimensional network

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中国科学院金属研究所

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;. Electrical properties of SiC 3--dimensional network. Chin J Mater Res, 2004, 18(4): 365-372.

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Abstract A finite element analysis of a unit cell modeling of electrical characteristics of SiC three dimensional networks is presented. A reasonable theoretical formula describing the resistivity of SiC 3--D networks was established. Calculated results showed that a uniform electrical current distribution of SiC 3--D networks can be obtained when uniform voltages are applied. The networks with a diamond unit cell have 3--D connectivity characteristics, while the networks with a rectangular unit cell have one--dimension characteristics. Ceramic networks with a diamond unit cell still keep the 3--D connectivity characteristics when its $L/S\gg$1 cm$^{-1}$.

Key words: inorganic non-metallic materials three-dimensional networks finite element analysis electrical chara

Received: 31 August 2004

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