Abstract

We have measured the heat capacity and thermal conductivity of the layered material hexagonal pyrolytic boron nitride from 2 to 10 K by a pulse-heating technique. The thermal conductivity has also been determined by a steady-state technique from 1.5 to 350 K. At low temperatures, the heat capacity has a ${T}^{3}$ dependence and the thermal conductivity a ${T}^{2.4}$ dependence. Crystallite size was found from transmission electron micrographs. The influence of dislocations on the thermal conductivity is discussed.

Keywords

Thermal conductivityPyrolytic carbonMaterials scienceBoron nitrideCrystalliteHeat capacityHexagonal boron nitrideThermal conductionComposite materialCondensed matter physicsThermodynamicsChemical engineeringNanotechnologyMetallurgyPyrolysisGraphenePhysics

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Publication Info

Year
1976
Type
article
Volume
13
Issue
10
Pages
4607-4611
Citations
300
Access
Closed

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E. K. Sichel, Ronald E. Miller, M. S. Abrahams et al. (1976). Heat capacity and thermal conductivity of hexagonal pyrolytic boron nitride. Physical review. B, Solid state , 13 (10) , 4607-4611. https://doi.org/10.1103/physrevb.13.4607

Identifiers

DOI
10.1103/physrevb.13.4607