The world's first carbon-based CPU cooler

[ahmad]

This is not the world's first heatsink that contains carbon.

If they are using some kind of carbon foam (graphitic), then this stuff has much better heat transfer capabilities than copper.

Funny how some people are comparing this to carbon-fibre car parts

[Fairydust]

...If they are using some kind of carbon foam (graphitic), then this stuff has much better heat transfer capabilities than copper...

I have yet to see a graphite foam that offers higher thermal conductivity than copper.

[ahmad]

I have yet to see a graphite foam that offers higher thermal conductivity than copper.

Then all I have to say is you have not seen much at all...

[Fairydust]

Then all I have to say is you have not seen much at all...

Where can I get the wonder foam then? Show me one foam with more than 200 W/(m*k) bulk conductivity at pc cooling temperature ranges.

[hht5555]

I have yet to see a graphite foam that offers higher thermal conductivity than copper.

On the basic thermodynamic, carbon foam has thermal conductivity of 1700-2000 W/mK which is 5x greater than copper 400W/mK. If they use carbon foam, technically it transfers heat faster than copper. However, the question is how fast heat transfer coefficient draws out of the cooler using silent fan + copper& water cool? Another thing: by looking on the picture, not sure what they mean about “carbon core”. Is it just a thin sheet of carbon foam attached to copper, and then its thermal diffusivity won’t be effective. But if it’s the whole core of carbon foam (except the copper fin for water cool) then it may help. Keep in mind that carbon foam is not cheap. A block of 1.9" x 1.9" x 3/8" retail for $50.00: http://www.pocographiteonline.com/servlet/Detail?no=17.

[Fairydust]

On the basic thermodynamic, carbon foam has thermal conductivity of 1700-2000 W/mK which is 5x greater than copper 400W/mK. If they use carbon foam, technically it transfers heat faster than copper. However, the question is how fast heat transfer coefficient draws out of the cooler using silent fan + copper& water cool? Another thing: by looking on the picture, not sure what they mean about “carbon core”. Is it just a thin sheet of carbon foam attached to copper, and then its thermal diffusivity won’t be effective. But if it’s the whole core of carbon foam (except the copper fin for water cool) then it may help. Keep in mind that carbon foam is not cheap. A block of 1.9" x 1.9" x 3/8" retail for $50.00: http://www.pocographiteonline.com/servlet/Detail?no=17.

While the ligaments do indeed have such thermal conductivity, the material as a whole does not, it is more than just aligned ligaments. The link you provided shows a bulk conductivity of 135 w/m*k in one direction and less in the other.

By the way...the google search was made to determine the if the thermal conductivity of graphite (not specifically foam because it had not even come into the thread at that point) in response to this post:

"Nah look at the 2nd pic, top right. The base is clearly shown in copper, render, actual, artist's conception, whatever. It can't possibly be carbon, the thermal conductivity of carbon sucks compared to copper."

How about I go back to forums where the goal is not just bashing newbies.

I apologize if you took offense, my comments were aimed at ahmand and his claim about graphite foam.

[andyOCZ]

This is not the world's first heatsink that contains carbon.

If they are using some kind of carbon foam (graphitic), then this stuff has much better heat transfer capabilities than copper.

Funny how some people are comparing this to carbon-fibre car parts

Hey guys, don't call the horse dead until you see him drop! Give this a chance and we will either prove that it works or you'll have something to piss and moan about.