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- Newsgroups: sci.materials
- Path: sparky!uunet!news.larc.nasa.gov!grissom.larc.nasa.gov!kludge
- From: kludge@grissom.larc.nasa.gov ( Scott Dorsey)
- Subject: Re: Insulator with good heat conductivity
- Message-ID: <Bs3vrz.Jyv@news.larc.nasa.gov>
- Sender: news@news.larc.nasa.gov (USENET Network News)
- Organization: NASA Langley Research Center and Reptile Farm
- References: <7926@dirac.physics.purdue.edu> <1992Jul28.075319.9973@fs7.ece.cmu.edu>
- Date: Tue, 28 Jul 1992 15:45:35 GMT
- Lines: 14
-
- In article <7926@dirac.physics.purdue.edu> parks@gibbs.physics.purdue.edu (Chris Parks) writes:
- >
- >What is a good material (good=price + availability) which is
- >an electrical insulator and a good conductor of heat?
- >
- >It will be used at temperatures as low as 4.2 Kelvin and it needs
- >to hold up to about 200 volts / mm, heat conductivity needs to
- >be comparable to copper. Does it exist?
-
- If it weren't for the low temperature requirement, I would recommend some
- of the silicone compounds, which are very good heat conductors. Mica is
- right out. Are there any silicones that are useful at temperatures that
- low?
- --scott
-