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General Category => Maths, Geometry, Physics and others => Topic started by: Alex on March 01, 2008, 11:27:50 AM

Title: Copper or aluminum?
Post by: Alex on March 01, 2008, 11:27:50 AM
Well i wonder if copper or aluminum has better heat transfer. For example what is better to use for a water cooling device for CPU? Copper or ALu?
Title: Re: Copper or aluminum?
Post by: ScubaCap on March 01, 2008, 18:03:13 PM
Thermal Conductivities of Some Common Metals
MetalThermal Conductivity, k (in unit of W/m·K)
Aluminum205.0
Brass109.0
Copper385.0
Lead34.7
Mercury8.3
Silver406.0
Steel50.2


I hope this helps
Title: Re: Copper or aluminum?
Post by: Mosquito on March 01, 2008, 21:13:41 PM
Copper of course. Aluminum is used wherever we want light construction. But i think you do not have any limitation to weight do you?
Title: Re: Copper or aluminum?
Post by: manley_V on March 01, 2008, 21:31:12 PM
Well you can use silver as well. Will be better than copper. The only problem will be that the radiator will be more expensive than the computer. Or maybe more. lolol  :) :) :) :)

I think there are some ready made and very good stuff around the net in a good price. CNC grooved and machined with o-ring and see-through cover. Very nice!
Title: Re: Copper or aluminum?
Post by: Alex on March 01, 2008, 22:59:15 PM
I thought so. And i beleive copper is much more easy to work with with home materials. Like, soldring for example.
Title: Re: Copper or aluminum?
Post by: ScubaCap on March 02, 2008, 16:21:43 PM
Yes it is. A little bit expensive though... :-\ :-\
But it worths it!
Title: Re: Copper or aluminum?
Post by: Alex on March 02, 2008, 23:13:01 PM
pffff. I will not need one ton copper. It is not that expensive...
Title: Re: Copper or aluminum?
Post by: spic0m on March 11, 2008, 00:14:52 AM
"Copper has a high electrical and thermal conductivity, second only to silver among pure metals"
From wikipedia but also found on any serious encyclopedia or technicall book

nuff said i think  :P
Title: Re: Copper or aluminum?
Post by: kam on March 11, 2008, 07:37:45 AM
its a fact
Title: Re: Copper or aluminum?
Post by: jenelyn18 on July 01, 2009, 06:17:30 AM
It is a ductile metal with very high thermal and electrical conductivity. Pure copper is rather soft and malleable and a freshly-exposed surface has a pinkish or peachy color. Aluminum is remarkable for its ability to resist corrosion due to the phenomenon of passivisation and the metal's low density. so, I guess, they are both good.





_________________
copper sinks (http://www.circlecitycopperworks.com)
Title: Re: Copper or aluminum?
Post by: spic0m on July 02, 2009, 20:54:21 PM
They are both good but for heat transfering copper is superior.
Title: Re: Copper or aluminum?
Post by: kam on July 02, 2009, 22:12:39 PM
They are both good but for heat transfering copper is superior.

I think it has almost half the heat resistance than the aluminum...