Re: New Alumina-based Glass
From: dave schneider (d_schneider_at_emulex.com)
Date: 09/27/04
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- In reply to: Neil Farbstein: "Re: New Alumina-based Glass"
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To: sci-space-tech@moderators.isc.org Date: 27 Sep 2004 10:27:58 -0700
"Neil Farbstein" <protologics@worldnet.att.net> wrote:
> I want to find materials that will bond alumina, particlularly metals that
> will bond that material.
Sorry, Neil, but I do have a response to Terry Harper in
<cg1r8g$d9q$3@hercules.btinternet.com>
> > > The method has been around for a long time.
The MIT Technology Review article on this, which appeared Sep 07 (I
know, I'm rushing along too fast), makes clear that what is new is the
ability to make non-silica glasses *in bulk*, thus promising lower
costs for these materials.
<http://www.technologyreview.com/articles/04/09/rnb_090804.asp?p=1>
<quote>
Non-silica glasses are stronger than traditional silica glasses, but
existing manufacturing methods only allow for fibers or thin films.
The researchers' process allows them to mold or machine complex shapes
while the material is amorphous, then crystallize it into a hard
ceramic.
</quote>
/dps
[Cute response to original poster preserved for hysterical
perspective]
> "Mike Miller" <cray74@hotmail.com> wrote
> > Damon Hill <damon1six1@comcast.comma.retro.com> wrote
> >
> > > Transparent aluminum? Whodathunkit?
> >
> > Anyone who's seen a sapphire. ;)
> >
> > "Alumina" is aluminum oxide. Calling it "transparent aluminum" is kind
> > of like trying to say rust is iron, or that water is hydrogen.
> >
> > With some tasteful impurities, alumina gets pretty colors and new
> > names, like "ruby" and "sapphire."
> >
> > Alumina is a common industrial product, and very transparent alumina
> > has been produced for watch faces for decades. You can get cheap
> > replacement sapphire watch 'crystals' for $10-$15.
> >
> > Mike Miller, Materials Engineer
- Previous message: Uncle Al: "Re: Al2O3 patterning"
- In reply to: Neil Farbstein: "Re: New Alumina-based Glass"
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