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The existed theories and methods for calculating interfacial thermalconductance of solid-solid interface lead to diverse values that deviate fromexperimental measurements. In this letter, We propose a model to estimate theITC at high temperature without comprehensive calculations, where the interfacebetween two dissimilar solids can be treated as an amorphous thin layer and thecoordination number density across interface becomes a key parameter. Our modelpredicts that the ITCs of various interfaces at 300K are in a narrow range:10$^{7}$W m$^{-2}$K$^{-1}$ $\sim $10$^{9}$ W m$^{-2}$ K$^{-1}$, which is ingood agreement with the experimental measurement.

Theoretical prediction of interfacial thermal conductance at high temperature across solid-solid interfaces