otonel - 4-2-2011 at 14:09
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
crazedguy - 4-2-2011 at 15:13
Maybe try google, then try being more specific with your questions.
otonel - 5-2-2011 at 00:38
Where I find is very expensive, and I need large quantities
crazedguy - 5-2-2011 at 11:17
The wikipedia article says how it is made then figure out how to do that method.
bfesser - 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]
White Yeti - 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.