Title
Application of photoacoustic and photothermal techniques for heat conduction measurements in a free-standing chemical vapor-deposited diamond film Application of photoacoustic and photothermal techniques for heat conduction measurements in a free-standing chemical vapor-deposited diamond film
Author
Faculty/Department
Faculty of Applied Economics
Publication type
article
Publication
New York ,
Subject
Physics
Chemistry
Source (journal)
International journal of thermophysics. - New York
Volume/pages
14(1993) :6 , p. 1201-1214
ISSN
0195-928X
ISI
A1993MN19500008
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Heat conduction in a free-standing chemical vapor-deposited polycristalline diamond film has been investigated by means of combined front and rear photoacoustic signal detection techniques and also by means of a ''mirage'' photothermal beam deflection technique. The results obtained with the different techniques are consistent with a value of alpha=(5.5+/-0.4) x 10(-4)m(2).s(-1) for thermal diffusivity, resulting in a value of kappa=(9.8+/-0.7) x 10(2) W.m(-1).K-1 for thermal conductivity when literature values for the density and heat capacity for natural diamond are used.
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