ISSN Online: 2377-424X
ISBN Print: 0-85295-345-3
International Heat Transfer Conference 10
A CORRELATION FOR THE THERMAL CONTACT CONDUCTANCE OF INTERSTITIAL METALLIC FOILS
要約
In many industrial applications; the thermal
contact conductance must be increased to improve the
overall thermal efficiency of a system. One technique
which increases the thermal conductance is the use of
metallic foils between the surfaces in contact. The
addition of the foil, however, increases the complexity of
the thermal analysis due to the foil thickness, hardness,
conductivity, and surface finish. As a consequence, most
studies of the thermal conductance of metallic foils have
been experimental. This study uses experimental data for
four metallic foils (aluminum, tin, lead, and copper)
inserted between aluminum 6061-T6 surfaces in contact
in a vacuum environment. The 221 thermal contact
conductance data points for the metallic foils can be
linked to the thermal contact conductance of the bare
joints as a function of the hardness, the thermal
conductivity of the foil and bare joint materials, and the
finish of the bare joint surfaces. The physical behavior of
the foil-solid system has been successfully correlated.