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Date: Fri, 10 Feb 2006 21:45:47 -0500
From: Greg Perry <gr..._at_liveammo.com>
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To: TSCM-L2006_at_googlegroups.com
Subject: More on Aerogels
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http://www.aerogel.com/technology.htm
"A variety of dopants and reinforcing agents may be added to modify the
properties of our blankets. For example, IR opacifying agents added to
silica aerogels minimize infrared transmission across virtually the
entire visible, near-IR and mid-IR region. We have manufactured silica
aerogels monoliths and blankets with thermal conductivity (k) values as
low as 0.011W/m•K (R-value of approx. 13 per inch) at 100°F. Cooling and
evacuation also improve the thermal performance of our aerogels, with
thermal performance approaching 0.001 W/m-K (R-144 per inch) at
cryogenic temperatures and under hard vacuum."
[...]
"Due to this unique structure, aerogels provide from two to tens times
more thermal and acoustical insulating capacity than existing
insulations per unit of material."
And some neato pictures from JPL:
http://stardust.jpl.nasa.gov/photo/aerogel.html
Received on Sat Mar 02 2024 - 00:57:17 CST