aerogel ppt
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Metal AerogelsJames AndersonPhilip DomondonNick CatelaniFall 2010Engineering 45SRJCDecember 1, 2010
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What is Aerogel?
• Is essentially the solid framework of a gel
• A class of porous, solid materials that exhibit extreme material properties
http://winarco.com/wp-content/uploads/2009/08/aerogel-grass.jpg
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Properties Extremely low
density Very good thermal
insulator High specific
surface area Lowest dielectric
constant
http://www.aerogel.org/?p=891&px=%2FClassic+Aerogel+Photos%2Ftheflower-lbl.jpg
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Introducing Metal Aerogels!• Inorganic cousins of
the more common Silica Aerogel
• Until very recently, Metal Aerogels did not exist!
http://www.aerogel.org/wp-content/uploads/2009/03/fenanofoam-lanl.jpg
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What are its properties?
High specific surface area (100-500m2/g)
Electrically conductive!
Enhanced catalytic activity
Surprisingly capable thermal insulator
http://www.aerogel.org/wp-content/uploads/cache/d07f9ffdc3be0bf80ec6052422ce9771.jpg
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How is metal aerogel made?• Combustion
synthesis• Dealloying• Nanosmelting
http://www.aerogel.org/wp-content/uploads/2009/03/fenanofoamproduction-lanl1.jpg
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Applications• Hydrogen
storage• Antimicrobial
scaffolds• Magnetic
media• X-Ray optics
http://www.greenpacks.org/wp-content/uploads/2008/06/honda-fcx-clarity.jpg
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References “Metal Aerogels.” 02 Nov 2010 <http://
www.aerogel.org/?p=932>
“What is Aerogel?” 11 Nov 2010 <http://www.aerogel.org/?p=3