[TheForge] Possible gas forge insulator? "protects against heat
from blowtorch at 2, 400 degrees"
Saint Phlip
phlip at 99main.com
Sun Aug 19 09:42:37 EDT 2007
A bit more research shows it has some other less than useful
characteristics, as produced now. However, in the future, I bet some
interesting work-arounds might be available.
http://www.unitednuclear.com/aerogel.htm
On 8/19/07, Saint Phlip <phlip at 99main.com> wrote:
> Might be a bit pricy-
>
> http://digg.com/tech_news/Now_You_Can_Buy_Aerogel
>
> On 8/19/07, Rob Fertner <rfertner at cox.net> wrote:
> > >From The Sunday TimesAugust 19, 2007
> >
> > Scientists hail 'frozen smoke' as material that will change world
> > Abul Taher
> > A MIRACLE material for the 21st century could protect your home against bomb
> > blasts, mop up oil spillages and even help man to fly to Mars.
> >
> > Aerogel, one of the world's lightest solids, can withstand a direct blast of
> > 1kg of dynamite and protect against heat from a blowtorch at more than
> > 1,300C.
> >
> > Scientists are working to discover new applications for the substance,
> > ranging from the next generation of tennis rackets to super-insulated space
> > suits for a manned mission to Mars.
> >
> > It is expected to rank alongside wonder products from previous generations
> > such as Bakelite in the 1930s, carbon fibre in the 1980s and silicone in the
> > 1990s. Mercouri Kanatzidis, a chemistry professor at Northwestern University
> > in Evanston, Illinois, said: "It is an amazing material. It has the lowest
> > density of any product known to man, yet at the same time it can do so much.
> > I can see aerogel being used for everything from filtering polluted water to
> > insulating against extreme temperatures and even for jewellery."
> >
> > Aerogel is nicknamed "frozen smoke" and is made by extracting water from a
> > silica gel, then replacing it with gas such as carbon dioxide. The result is
> > a substance that is capable of insulating against extreme temperatures and
> > of absorbing pollutants such as crude oil.
> >
> > It was invented by an American chemist for a bet in 1931, but early versions
> > were so brittle and costly that it was largely consigned to laboratories. It
> > was not until a decade ago that Nasa started taking an interest in the
> > substance and putting it to a more practical use.
> >
> > In 1999 the space agency fitted its Stardust space probe with a mitt packed
> > full of aerogel to catch the dust from a comet's tail. It returned with a
> > rich collection of samples last year.
> >
> > In 2002 Aspen Aerogel, a company created by Nasa, produced a stronger and
> > more flexible version of the gel. It is now being used to develop an
> > insulated lining in space suits for the first manned mission to Mars,
> > scheduled for 2018.
> >
> > Mark Krajewski, a senior scientist at the company, believes that an 18mm
> > layer of aerogel will be sufficient to protect astronauts from temperatures
> > as low as -130C. "It is the greatest insulator we've ever seen," he said.
> >
> > Aerogel is also being tested for future bombproof housing and armour for
> > military vehicles. In the laboratory, a metal plate coated in 6mm of aerogel
> > was left almost unscathed by a direct dynamite blast.
> >
> > It also has green credentials. Aerogel is described by scientists as the
> > "ultimate sponge", with millions of tiny pores on its surface making it
> > ideal for absorbing pollutants in water.
> >
> > Kanatzidis has created a new version of aerogel designed to mop up lead and
> > mercury from water. Other versions are designed to absorb oil spills.
> >
> > He is optimistic that it could be used to deal with environmental
> > catastrophes such as the Sea Empress spillage in 1996, when 72,000 tons of
> > crude oil were released off the coast of Milford Haven in Pembrokeshire.
> >
> > Aerogel is also being used for everyday applications. Dunlop, the sports
> > equipment company, has developed a range of squash and tennis rackets
> > strengthened with aerogel, which are said to deliver more power.
> >
> > Earlier this year Bob Stoker, 66, from Nottingham, became the first Briton
> > to have his property insulated with aerogel. "The heating has improved
> > significantly. I turned the thermostat down five degrees. It's been a
> > remarkable transformation," he said.
> >
> > Mountain climbers are also converts. Last year Anne Parmenter, a British
> > mountaineer, climbed Everest using boots that had aerogel insoles, as well
> > as sleeping bags padded with the material. She said at the time: "The only
> > problem I had was that my feet were too hot, which is a great problem to
> > have as a mountaineer."
> >
> > However, it has failed to convince the fashion world. Hugo Boss created a
> > line of winter jackets out of the material but had to withdraw them after
> > complaints that they were too hot.
> >
> > Although aerogel is classed as a solid, 99% of the substance is made up of
> > gas, which gives it a cloudy appearance.
> >
> > Scientists say that because it has so many millions of pores and ridges, if
> > one cubic centimetre of aerogel were unravelled it would fill an area the
> > size of a football field.
> >
> > Its nano-sized pores can not only collect pollutants like a sponge but they
> > also act as air pockets.
> >
> > Researchers believe that some versions of aerogel which are made from
> > platinum can be used to speed up the production of hydrogen. As a result,
> > aerogel can be used to make hydrogen-based fuels.
> >
> >
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>
> --
> Saint Phlip
>
> Heat it up
> Hit it hard
> Repent as necessary.
>
> Priorities:
>
> It's the smith who makes the tools, not the tools which make the smith.
>
> Denial of evidence is not refutation of evidence.
>
> Blessed be the self-righteous, for they shall inherit themselves.
>
--
Saint Phlip
Heat it up
Hit it hard
Repent as necessary.
Priorities:
It's the smith who makes the tools, not the tools which make the smith.
Denial of evidence is not refutation of evidence.
Blessed be the self-righteous, for they shall inherit themselves.
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