The Transport of Heat Between Dissimilar Solids at Low Temperatures

摘要: The resistance offered to the flow of heat by mismatch elastic constants at interface between two materials has been calculated. It is shown that for a perfectly joined proportional difference fourth powers temperature on each side interface. Deviations from this dependence are be expected rough surfaces and pressed into contact with one another. calculated some common solids given, graphs presented which any may computed. too spin—phonon, phonon—electron, phonon—phonon relaxation processes give rise additional resistive in solids, restrict surface. theoretical results compare well available experimental data. However, problem helium metals still unresolved. A tentative explanation predicts there should an appreciable metal normal superconducting state.