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gmat · 11-12-2002, 09:11 AM

I think Joe and BB2K were confused here. Graphite and "common" carbon-fiber or carbon-foam based heat spreaders are anisotropic materials, that indeed transfer heat mostly in one direction.
Diamond, synthetic or not, is completely anisotropic. Its cristalline structure is well known, and identical in both natural and synthetic diamonds. Heat conductivity and spreading abilities are incredible, and the highest one can get on Earth nowaday.
A "localized" hot spot would be a sign of a low conductivity, which is not the case obviously. A diamond plate on a CPU core would have a more uniform temp distribution than an equivalent copper plate.

So basically it would work.

This is totally overkill maybe, but people, remember this is not the point here. Let's keep constructive comments.

Shaping the diamond piece is the tough point here. If Natedog manages to make it i'll be eager to see performance figures.

11-12-2002, 09:11 AM	#27
gmat Thermophile Join Date: Mar 2001 Location: France Posts: 1,221	I think Joe and BB2K were confused here. Graphite and "common" carbon-fiber or carbon-foam based heat spreaders are anisotropic materials, that indeed transfer heat mostly in one direction. Diamond, synthetic or not, is completely anisotropic. Its cristalline structure is well known, and identical in both natural and synthetic diamonds. Heat conductivity and spreading abilities are incredible, and the highest one can get on Earth nowaday. A "localized" hot spot would be a sign of a low conductivity, which is not the case obviously. A diamond plate on a CPU core would have a more uniform temp distribution than an equivalent copper plate. So basically it would work. This is totally overkill maybe, but people, remember this is not the point here. Let's keep constructive comments. Shaping the diamond piece is the tough point here. If Natedog manages to make it i'll be eager to see performance figures.