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Thermal Conductances Of Metal ContactsReport presents results of measurements of thermal conductances of aluminum and stainless-steel contacts at temperatures from 1.6 to 6.0 K. Measurement apparatus includes gearmotor assembly connected to rocker arm by music wire to load sample pair with forces up to 670 N. Heater placed above upper sample. Germanium resistance thermometers in upper and lower samples measured temperature difference across interface over range of heater powers from 0.1 to 10.0 mW. The thermal conductance calculated from temperature difference. Measurements provide data for prediction of thermal conductances of bolted joints in cryogenic infrared instruments.
Document ID
19880000230
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Salerno, L. J.
(NASA Ames Research Center, Moffett Field, Calif.)
Kittel, P.
(NASA Ames Research Center, Moffett Field, Calif.)
Scherkenbach, F. E.
(NASA Ames Research Center, Moffett Field, Calif.)
Spivak, A. L.
(Trans-Bay Electronics, Inc.)
Date Acquired
August 13, 2013
Publication Date
April 1, 1988
Publication Information
Publication: NASA Tech Briefs
Volume: 12
Issue: 4
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
ARC-11777
Accession Number
88B10230
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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