Thermal conductance of gold plated metallic contacts at liquid helium temperaturesThe thermal conductance of gold plated OFHC copper, 6061-T6 aluminum, free-machining brass, and 304 stainless steel contacts has been measured over the temperature range of 1.6 to 4.2 K, with applied forces from 22 N to 670 N. The contact surfaces were prepared with a 0.8 micron lapped finish prior to gold coating. It was found that for all materials, except stainless steel, the thermal conductance was significantly improved as the result of gold coating the contact surfaces.
Document ID
19930050253
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Kittel, Peter (NASA Ames Research Center Moffett Field, CA, United States)
Spivak, Alan L. (Trans-Bay Electronics Richmond, CA, United States)
Salerno, Louis J. (NASA Ames Research Center Moffett Field, CA, United States)