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Article #55Re: Insulator with good heat conductivity
From: Richard Bradley
Date: Tue, 28 Jul 1992 14:33
Date: Tue, 28 Jul 1992 14:33
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Crystalline quartz is a good electrical insulator and a good thermal conductor at cryogenic temperatures. Its thermal expansion coef. matches that of copper so it will not crack upon cooling. It is relatively inexpensive and is available from a number of companies. We use it as a thermal strap for the center conductor of microwave coaxial cable. Hope this helps.
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Path: arc1-ca.pugleaf.net!sparky!uunet!usc!elroy.jpl.nasa.gov!swrinde!mips!darwin.sura.net!uvaarpa!cv3.cv.nrao.edu!cv3.cv.nrao.edu!rbradley From: rbradley@polaris.cv.nrao.edu (Richard Bradley) Newsgroups: sci.materials Subject: Re: Insulator with good heat conductivity Message-ID: <RBRADLEY.92Jul28093359@polaris.cv.nrao.edu> Date: 28 Jul 92 14:33:59 GMT References: <7926@dirac.physics.purdue.edu> Sender: news@nrao.edu Distribution: na Organization: National Radio Astronomy Observatory Lines: 7 In-Reply-To: parks@gibbs.physics.purdue.edu's message of 27 Jul 92 22: 01:10 GMT