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View Full Version : Theoretical Ultimate Heatsink


ggermany
08-14-2003, 07:45 AM
As a retired NASA guy, I got to play around with materials unavailable in the open market. This is my theory for the ultimate heat sink. The infamous tiles on the Space Shuttle are a true miracle (the downside is they are very brittle). Taken directly from a kiln at 3000 decrees Celcius, it can be immediately picked up by hand. It is amazing, they simply dissapate all heat! They are ceramic in composition and are "fluffed" to be filled with tiny air bubles inside for weight considerations in this application. If anybody knows anybody in advanced ceramics, this could be worth looking into.

dicki
08-14-2003, 08:58 AM
hummm are they dissapating heat or simply not absorbing it?

if its dissapated where does it go? due to thermodynamics you require a heatsink (usually this is the atmosphere) and you need to shift the heat into it somehow and its the interface between the air and the heatsink where the design needs to be clever.

i would expect that the shuttle tiles infact don't conduct any heat at all which would obviously be bad in a heatsink

Gregorach
08-14-2003, 09:54 AM
They're designed to be highly insulating, aren't they? If they conducted heat really well, they wouldn't be much use on re-entry... ;)

Player0
08-14-2003, 11:53 AM
Yeah, what they said. How it pull heat away from the CPU?

ggermany
08-14-2003, 11:24 PM
That is the absolute wonder of the tiles, they dissapate heat. The video I saw had a guy pick one up directly out of a kiln at 3000 degress celcius, with his bare hand. Instead of reflecting heat, they dissapate it. This technology is over 30 years old now. If I could find a polymer science lab or high tech ceramics lab. I would like to at least give it a try. Again the problem is, they are very brittle.

Whadda think?

Drake
08-14-2003, 11:48 PM
I'm pretty much on the same train of thought as everyone else... Don't they 1) insulate the space shuttle from heat, then 2) release what heat they do pick up? Not very good HSF material at all.

Snowman
08-14-2003, 11:49 PM
http://www.countdown-creations.com/shuttle_tile.htm


:D :D :D

Ruantic
08-15-2003, 12:34 AM
doesn't sound much like it dissipates, a little ggogling finds alot and what I read all indicates insulating qualities, If you would really like to give the stuff a try it seems you can buy it HERE (http://www.partsexpress.com/pe/showdetl.cfm?DID=7&Product_ID=15299)

notoriousformula
08-15-2003, 07:06 AM
i agree with you guys,, i took a course in Ceramics.. they don't absorb or conduct heat(only preventing/insulating the Shuttle)..so not a very good heatsink material..

spldart
08-16-2003, 05:43 PM
Yes...You need an optimal heat conductor...Thus aluminum is ok...Copper is better ;)
Ceramic tile hsf would lead to instant death of cpu.

ggermany
08-16-2003, 07:18 PM
Oh well, I've had dumber ideas before, at least this one hasn't cost me anything yet. I will, however try to track down some NASA buddies and see we is the Guru of heat dissapation. I might have been on the totally wrong track, but if anybody in the world knows, it will be these guys.

Synthohol
08-16-2003, 08:43 PM
dont give up looking, some of the best inventions are accidents!


p.s. ig you take the space and the " after http out of youf sig it shoould work!


http://www.liquidninjas.net/dc/ln_dc_sig.php?yuser=ggermany@earthlink.net (http://www.liquidninjas.com/seti/ln_seti_stats.php)

hit quote on my post and copy and paste to your sig!! :)

spldart
08-17-2003, 12:39 PM
I'd like to see this tried....
Solid silver waterblock with mercury as coolant :eek:

Ruantic
08-17-2003, 04:44 PM
I've seen silver blocks but doubt will ever see mercury as a coolant:D

Morphling1's Waterblock:

Drake
08-17-2003, 05:11 PM
I doubt we'd ever see pumps that could move mercury would it be used as a coolant...

Heh kinda off topic but...