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Author: Subject: pyrolytic graphite
otonel
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[*] posted on 4-2-2011 at 14:09
pyrolytic graphite


I m interested in magnetic levitation devices and i need pyrolytic graphite as diamagnetic material and I want to make some because I don`t find to buy.
Know somebody which in procedure to make pyrolytic graphite from normal graphite used in batteries and is possible to heat graphite using welding machine
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crazedguy
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[*] posted on 4-2-2011 at 15:13


Maybe try google, then try being more specific with your questions.



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otonel
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[*] posted on 5-2-2011 at 00:38


Where I find is very expensive, and I need large quantities
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crazedguy
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[*] posted on 5-2-2011 at 11:17


The wikipedia article says how it is made then figure out how to do that method.



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bfesser
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[*] posted on 5-2-2011 at 18:15


<a href="http://lmgtfy.com/?q=united+nuclear+pyrolytic+graphite&l=1">United Nuclear</a> carries it. Good luck with the large quantities bit, though...

[Edited on 2/6/11 by bfesser]
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White Yeti
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[*] posted on 5-11-2011 at 08:31


It's expensive because of the process involved in the manufacturing process. IIRC, pyrolytic graphite is made when hydrocarbons are heated to high temperatures and turn into hydrogen and methane and leave a coat of pure carbon residue on the reactor walls.

It's similar to the way nanotubes are made, both substances are pretty expensive.




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