Estimation of the effective thermal conductivities of two-phase media

A nomogram scaled in logarithmic units, and a chart are provided for estimation of the effective thermal conductivities of two-phase media. The former is useful for precise prediction, and the latter as an approximate guide to probable limiting values. The basis is a logarithmic equation proposed by Woodside & Mesmer, biased empirically following the study of about 150 experimental results for two-phase media. The practical uses are numerous, e.g. estimations of the conductivities of filled plastics, filled rubbers; metal, ceramic and other powders in fluids or gases; ocean sediment; waterlogged and frozen soil, and other materials.