tumadre
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Super-tough material mimics metal and crystal
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<a href="http://www.newscientisttech.com/article/dn11670-supertough-material-mimics-metal-and-crystal.html"
target="_blank">http://www.newscientisttech.com/article/dn11670-supertough-material-mimics-metal-and-crystal.html</a><br />
rhenium diboride, no pressure, just melt rhenium and boron together.
they claim it will scratch diamond
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not_important
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Heh
"But all the known super-hard materials are very expensive because they [have to be] made at high pressure"
So substitute in the lost cost rhenium , at only US$ 6000 per troy ounce...
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Waffles
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Rhenium is $2500/pound. Considering many other metals, thats REALLY not that expensive.
At least now I know why Theo Gray contacted me looking for a picture of ReB2 for ACS.
\"…\'tis man\'s perdition to be safe, when for the truth he ought to die.\"
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not_important
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You're correc - there appears to be two markets in rhenium, with a vast gap in the pricing.
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Waffles
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| Quote: | Originally posted by not_important
You're correc - there appears to be two markets in rhenium, with a vast gap in the pricing. |
I thought you just confused it with rhodium, which has been floating around 6000/troz oz for awhile now.
Re is way cooler anyways
\"…\'tis man\'s perdition to be safe, when for the truth he ought to die.\"
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Eclectic
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It's good for making rocket nozzles and other things that need to be very strong at very high temperatures. Needs plating with Iridium to prevent
oxidation though.
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franklyn
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http://www.whatsnextnetwork.com/technology/index.php/2007/04...
.
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not_important
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What it looks like is that several sites are mis-converting between troy and metric for their rhenium prices.
Magnesium-Aluminium borides with TiB2 doping still look to be cheaper by far.
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Texium
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Thread Moved
19-11-2023 at 11:54 |
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