Nintendo Maniac 64 Wrote:I profusely apologies for posting in a month-old thread, but I must ask this question...
What about diamond? It's made of pure carbon and yet, depending on the purity, has two and half to eight times the thermal conductivity of silver.
If it's pure diamond sure. But diamond isn't liquid at room temperature and it's extremely expensive. That poses some issues for using it in thermal grease. Some thermal pastes do use diamond powder in them but they can only use a small amount. They are mildly more efficient than silver based compounds but generally not worth the high cost.
Not all carbon based compounds are the same. MX-4 uses microparticles made of small carbon fiber(s) suspended in a highly viscous fluid to make it act as a paste. I can't claim to fully understand the physics behind this but I would imagine that density of the compound and particle size would play a big role among other things. It's clear that for whatever reason some carbon based greases are better than others. MX-4 is high on that list.
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-Ron Swanson
"I shall be a good politician, even if it kills me. Or if it kills anyone else for that matter. "
-Mark Antony
