Simple second-order expression : For the porosity dependence of thermal conductivity

In this paper we use the Coble-Kingery approach to derive a handy formula for the porosity dependence of the effective thermal conductivity k. Probably the earliest formula applicable to this property in composites of the matrix-inclusion type is the Maxwell approximation of 1873, which describes a...

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Bibliographic Details
Published in:Journal of materials science 2005-05, Vol.40 (9-10), p.2667-2669
Main Author: PABST, W
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Dependence
Exact sciences and technology
Nonelectronic thermal conduction and heat-pulse propagation in solids
thermal waves
Physics
Porosity
Thermal conductivity
Transport properties of condensed matter (nonelectronic)
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Summary:In this paper we use the Coble-Kingery approach to derive a handy formula for the porosity dependence of the effective thermal conductivity k. Probably the earliest formula applicable to this property in composites of the matrix-inclusion type is the Maxwell approximation of 1873, which describes a model material with spherical inclusions.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-005-2101-x