Re: Unexpected Results Lead To 'Nanocarbons': 'Flying' Nanotubes Are Strong And Hard
From: Uncle Al (UncleAl0_at_hate.spam.net)
Date: 07/17/04
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Date: Sat, 17 Jul 2004 12:50:31 -0500
Neutron wrote:
>
> Diamonds are the hardest known substance. Carbon nanotubes are the
> strongest. Scientists at the U.S. Department of Energy's Argonne
> National Laboratory tried to combine the best of both worlds by
> creating a composite nanostructure. They wanted to grow tiny carbon
> tubes with tiny diamonds.
>
> But the results were not as expected.
>
> Full story read at http://www.physorg.com/news409.html
Yes they were. We've known hydrogen/argon plasma eats graphene
since Brad Pate's thesis at Stanford opened up diamond CVD.
That's why diamond CVD works at all - all the crap carbon
deposited erodes way faster than diamond. Stack nanotubes
vertically and the tops progessively disappear. Lay them down
flat and the sides erode open. With a few more $million spent
they may even discover an alternate ridiculous route to Grafoil
or glassly carbons.
The rational experiment would be to grow a CVD diamond base, then
add a trace of ferrocene vapor and methanol to the
hydrogen/methane/argon plasma to grow nanotubes on diamond. Just
what the world needs - black hairy diamonds.
-- Uncle Al http://www.mazepath.com/uncleal/ (Toxic URL! Unsafe for children and most mammals) http://www.mazepath.com/uncleal/qz.pdf
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