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Effects of metallic vapor deposition process and the overall coating thickness on thermal contact conductance

Effects of metallic vapor deposition process and the overall coating thickness on thermal contact conductance

Authors :
Howard, A.H.
Ochterbeck, J.M.
Peterson, G.P.
Source :
Journal of Heat Transfer. Nov, 1995, Vol. 117 Issue 4, p828, 7 p.
Publication Year :
1995

Abstract

The thermal contact conductance of metallic interfaces depends upon the thickness of vapor deposited multiple-layered coatings. A study of aluminum 6061-T6 with indium coatings shows that the conductance enhancement factor approaches a maximum asymptotically for an optimum coating thickness. Oxidation and thermal cycling cause poor layer adhesion in multiple layer coatings. This results in very low conductance enhancement factor, as compared to a single layer coating of the same thickness. A theoretical study predicts the maximum level of enhancement.

Details

ISSN :
00221481
Volume :
117
Issue :
4
Database :
Gale General OneFile
Journal :
Journal of Heat Transfer
Publication Type :
Academic Journal
Accession number :
edsgcl.18183157