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Research And Development On Advanced Graphite Materials. Volume XLI - Survey And Analytical Representation Of The Measurement Of the Specific Heat Of Graphite

Report Number: WADD TR 61-72 Volume 41
Author: Spence, G. B.
Corporate Author: Research Laboratory of National Carbon Company Division of Union Carbide Corporation
Laboratory: AF Materials Laboratory
Date of Publication: 1963-11
Pages: 52
Contract: AF 33(616)-6915
Project: 7350
Task: 735002
AD Number: AD0427316

A literature survey was made of the experimental values of the specific heat of graphite. Most of the measurements from 20°K to 3800°K were reanalyzed and a new average curve is given for each experimental run. Some of the new curves are significantly different from the original curves. Estimates are given of the Cp-Cv term, the electronic specific heat, and the specific heat of the lattice vibrations. The lattice specific heat was approximated by various combinations of Einstein and one- and two-dimensional Debye functions. The characteristic temperatures were selected by a least-squares curve-fitting procedure.

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