Quote:
Originally posted by Tuff
http://www.grc.nasa.gov/WWW/RT1999/6000/6712chao2.html
This might shed some light on the subject...It has a graph to show the difference between aluminum/graphite and copper/graphite. Copper still beating graphite, but if you combine graphite and copper you have a very good heat conductive composite.
Also if I might add...a little off topic but...When you heat up a graphite hockey stick to replace the blade...the heat seems to stay localized to where you are heating...it does not travel up the shaft..just seems to penetrate through one way.
Tuff
|
Hey Tuff, you might want to reread that link becuase the only mention it makes of conductivity is to say how poor graphite is compared to copper. Alloyed metals virtually always conduct worse becuase of the effect of the solute on the lattice structure.
Quote:
|
Because of the great difference in conductivity between the copper base and the graphite fiber
|
The rest of the artical just talks about phase change systems, not conduction.
Quote:
|
What about industrial diamond? the fake stuff they use for coating drills and saws.
|
Depends. Conduction ranges from half to one and a half times natural diamonds for synthetics and industrial diamonds, depending on how much you have to spend. Worst case you're looking at 3x the conductivity of copper.