journal article·2013-10

Effect of porosity on the electrical resistivity of carbon materials

Tian-ming SUN, Li-min DONG, Chen WANG, Wen-li GUO, Li WANG, Tong-xiang LIANG

New Carbon Materials· Volume 28· Issue 5
Publisher page

Abstract

A model describing the effect of true density and porosity on the electrical resistivity of carbon materials is developed based on ideal fluid mechanics. The modeling results are in good agreement with experimental data with a largest deviation of 2%. Open porosity has a greater effect on resistivity than closed porosity. An increase of open porosity by 40% leads to a resistivity increase by 250% while the same increase in closed porosity gives rise to a resistivity increase of only 25%. The influence of true density on electrical resistivity is not significant.
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Research context

OpenAlex topics: Carbon Nanotubes in Composites · Diamond and Carbon-based Materials Research · Smart Materials for Construction

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References (13)

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