High-Temperature Thermal Conductivity of Insulating Crystals: Relationship to the Melting Point
- 1 August 1959
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 115 (3), 564-567
- https://doi.org/10.1103/physrev.115.564
Abstract
The Lindemann melting rule is used to eliminate the elastic constant from the thermal conductivity formula proposed by Lawson. The thermal conductivity is thus obtained as a function of density, atomic weight, and melting temperature. The introduction of a dependence on bond character allows a major fraction of the available high-temperature thermal conductivity data to be reproduced within a factor of two. A dependence of thermal conductivity on mass ratio of the type found theoretically by Blackman for diatomic crystals is observed.Keywords
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