Diamond-like carbon and heat transfer?

The best conductor of heat is diamond, as you said (although parallel carbon graphite is said to be the best conductor according to the site below. By parallel they probably mean the lattice structure). However, also I'm sure you are aware of, it is expensive. Diamond-like carbon (DLC) It is a very hard material, sometimes harder than diamond, and wear resistant. Although diamond is ideal, I would look into copper (better) or aluminum. Both are very good conductors of heat and are typically used in industry.

Overall, it all depends on how much you need, how you need it manufactured and how much money you are willing to spend to determine what material is best suited. It seems to me like the DLC would be a bit of an overkill, but I of course don't know your application, so I feel the reduction of cost by using aluminum or copper could help in the long run. I would suggest looking into a software called CES EduPack; its a software that does material selection for anything you're interested in. Hope all this helps!

Your question is blank.Without knowing th project or application it is always not advisable to recommend a material- However my suggestion would be to go for a ananomaterial as it can be newly developed for your application.