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TECHNICAL PAPERS: Conduction

Thermal Contact Conductance of Non-Flat, Rough, Metallic Coated Metals

[+] Author and Article Information
M. A. Lambert

Department of Mechanical Engineering, San Diego State University, San Diego, CA 92182-1323

L. S. Fletcher

Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843-3123

J. Heat Transfer 124(3), 405-412 (May 10, 2002) (8 pages) doi:10.1115/1.1464565 History: Received May 19, 1997; Revised December 20, 2001; Online May 10, 2002
Copyright © 2002 by ASME
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References

Figures

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Contacting spherical, rough surfaces showing the macroscopic contact radius, aL,Hz, predicted by Hertz 11, as incorporated in the models by Clausing and Chao 6 and Lambert and Fletcher 17. Note that aL,Hz≤aL. Also shown is an idealized array of micro-contacts.
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Ratio of peak contact pressure P0/P0,Hz (at r=0) for rough and smooth spheres
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Models by (a) Lambert and Fletcher 17 and (b) Antonetti and Yovanovich 34 compared to experimental thermal contact conductance results for physically vapor deposited (PVD) silver on nickel 200 by Antonetti 16
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Models by (a) Lambert and Fletcher 17 and (b) Antonetti and Yovanovich 34 compared to experimental thermal contact conductance results for PVD aluminum and magnesium on stainless steel 304 by Fried 18; nickel, silver, and copper platings on stainless steel by Mal’kov and Dobashin 19; and PVD tin on low alloy steel by O’Callaghan et al. 2
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Models by (a) Lambert and Fletcher 17 and (b) Antonetti and Yovanovich 34 compared to experimental thermal contact conductance results for physically vapor deposited (PVD) lead, tin, and indium on aluminum alloy 6061-T6 by Kang et al. 20
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Models by (a) Lambert and Fletcher 17 and (b) Antonetti and Yovanovich 34 compared to experimental thermal contact conductance results for physically vapor deposited (PVD) aluminum, lead, and indium on aluminum alloy 6061-T651 by Chung et al. 21
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Models by (a) Lambert and Fletcher 17 and (b) Antonetti and Yovanovich 34 compared to experimental thermal contact conductance results for (PVD) copper, copper/carbon, silver, and silver/carbon on aluminum alloy 6061-T651 by Sheffield et al. 22
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Models by (a) Lambert and Fletcher 17 and (b) Antonetti and Yovanovich 34 compared to experimental thermal contact conductance results for electroless nickel plated copper to gold and silver coated (physically vapor deposited (PVD), electroplated, and flame sprayed) aluminum alloy A356-T61 by Lambert and Fletcher 23

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