Graphene could conduct waste heat from computer chips more than twiceas,fast as copper
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From: Androcles on 9 Apr 2010 11:25 "Jeroen Belleman" <jeroen(a)nospam.please> wrote in message news:hpng3j$qkd$1(a)speranza.aioe.org... > Uncle Al wrote: >> Sam Wormley wrote: >>> Carbon sheets offer cool solution for computers >>> Graphene could conduct waste heat from computer chips more than twice as >>> fast as copper >>> http://physicsworld.com/cws/m/1698/17632/article/news/42260 >> >> CVD diamond is already vastly better than that. CVD diamond heat >> spreaders for chips are commercial. >> >> http://www.diamond-materials.com/proptherm_en.htm >> >> The diamond TC record is 41,000 W/m-K at 104 K (99+% C-12). >> > > Yes, but it isn't nearly as spectacular above 300K, which is where it > matters for most electronics. > > Jeroen Belleman That may not matter in optical applications, particularly optical computing and LCD. The refractive index of diamond is second to none. TC would only be a bonus.
From: tm on 9 Apr 2010 11:47
"Jeroen Belleman" <jeroen(a)nospam.please> wrote in message news:hpng3j$qkd$1(a)speranza.aioe.org... > Uncle Al wrote: >> Sam Wormley wrote: >>> Carbon sheets offer cool solution for computers >>> Graphene could conduct waste heat from computer chips more than twice as >>> fast as copper >>> http://physicsworld.com/cws/m/1698/17632/article/news/42260 >> >> CVD diamond is already vastly better than that. CVD diamond heat >> spreaders for chips are commercial. >> >> http://www.diamond-materials.com/proptherm_en.htm >> >> The diamond TC record is 41,000 W/m-K at 104 K (99+% C-12). >> > > Yes, but it isn't nearly as spectacular above 300K, which is where it > matters for most electronics. > > Jeroen Belleman It's four times better than copper at 300 K. The graph is in C. |