Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
materialsELSEVIER Journal of Nuclear Materials 233-237 (1996) 847-851 Experimental evaluation of the interface heat conductance between
 

Summary: journalnf
nuclear
materialsELSEVIER Journal of Nuclear Materials 233-237 (1996) 847-851
Experimental evaluation of the interface heat conductance between
roughened beryllium and stainless steel surfaces
Robert Dean Abelson *, Mohamed A. Abdou
Mechanical, Aero.~pace and Nuclear Engineering Dqmrtment, Universicv q[ Calijornia at Los Angeles. Los Angeles, CA 90095-1597, USA
Abstract
The interface heat conductance between non-conforming stainless steel and roughened beryllium disks of l-inch diameter
has been measured as a function of surface roughness, interstitial gas pressure, contact pressure and heat flux. Helium was
used as the interstitial gas. Based on experimental findings, the interface conductance between non-conforming surfaces was
found to be degraded by up to 32% relative to that between conforming surfaces due to the effects of differential thermal
deformations. Whereas increasing the contact pressure was found to increase the interface conductance, increasing the
surface roughness or decreasing the interstitial gas pressure was found to significantly decrease the interface conductance.
1. Introduction
Solid to solid contact, in one form or another, is
common in almost every engineering system. In most
cases, the possibility that one of the solids may have
different themlomechanical properties and hence different
thermal performance relative to the other is of little or no

  

Source: Abdou, Mohamed - Fusion Science and Technology Center, University of California at Los Angeles

 

Collections: Plasma Physics and Fusion