thermally conductive, electrical insulator
thermally conductive, electrical insulator
(OP)
I would like to insulate a coil at 400V from a metal case but allow efficient conduction of heat into case. Temperature about 600 deg. C. Power 1-2 kW. Size 2" diameter.
Could you recommend a material that can take and conduct heat and still maintain electrical insulation.
Device is similar to a heating coil but it is for R&D work.
I have seen heating coils surrounded by a powder in a metal shield. Any idea what this powder might be?
Thanks
Could you recommend a material that can take and conduct heat and still maintain electrical insulation.
Device is similar to a heating coil but it is for R&D work.
I have seen heating coils surrounded by a powder in a metal shield. Any idea what this powder might be?
Thanks





RE: thermally conductive, electrical insulator
RE: thermally conductive, electrical insulator
Any similar substance that I could pot like a resin?
Glass is interesting however cracking might be a problem as well as casting coil in glass might be be a difficult process for a single test.
RE: thermally conductive, electrical insulator
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"The richer we have become materially, the poorer we have become morally and spiritually." Martin Luther King Jr
RE: thermally conductive, electrical insulator
It is white, slick like graphite, a fair heat conductor, and a great electrical insulator.
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Plymouth Tube
RE: thermally conductive, electrical insulator
DO NOT CONSIDER BERYLLIUM OXIDE EVEN THROUGH IT IS A GOOD THERMAL CONDUCTOR ( material is hazardous !! )
Aluminum Nitride (ALN) is also a strong candidate for a solid but could be expensive.
(used in specialized semiconductor mounting)
RE: thermally conductive, electrical insulator
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RE: thermally conductive, electrical insulator
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RE: thermally conductive, electrical insulator
There are greases like thermalloy that might work.
Diamond powder might work like MgO. It is the filler in some products.
Search the forum. This topic is discussed often with different variations.
RE: thermally conductive, electrical insulator
As used to interface computer CPU's to heatsinks. Completely electrically insulative
Adriaan.
I am a Mechatronics Engineer from South Africa.
www.martin-electronics.co.za
RE: thermally conductive, electrical insulator
Dik
RE: thermally conductive, electrical insulator
pushing the upper temperature limit. Schott make also makes
some high temperature glasses that might meet your requirements..
http://www.insaco.com/MatPages/materials.asp
http://www.aximmica.com/mica-sheets.html
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