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Info: Metals - Thermal/Electrical Conductivity

post #1 of 8
Thread Starter 
This guide provides information on a variety of different metals' thermal conductivity and electrical conductivity. I did not take this FAQ, I did my own research on it. This guide is in the cooling sections for the fact that it shows thermal conductivity, and it is in off topic for the electrical conductivity. The electrical conductivity is measured in electron negativity in the Pauling scale, and the thermal conductivity is measured in W/(m·K)



Incase you want to look up a certain metal that list in alphabetical order will let you know about the metal.

Here are the lists in order of greatest conductivity.

Electrical Conductivity

Gold - 2.54
Lead - 2.33
Platinum - 2.28
Mercury - 2.00
Tin - 1.96
Silver - 1.93
Nickel - 1.91
Silicon - 1.90
Copper - 1.90
Cobalt - 1.88
Iron - 1.83
Zinc - 1.65
Aluminum - 1.61
Titanium - 1.54
Magnesium - 1.31


Thermal Conductivity

Silver - 429
Copper - 401
Gold - 317
Aluminum - 237
Magnesium - 156
Silicon - 149
Zinc - 116
Cobalt - 100
Nickel - 91
Iron - 80
Platinum - 72
Tin - 67
Lead - 35
Titanium - 22
Mercury - 9


Although diamonds are not on the list of thermal conductivity, I found it interesting to learn that they have a thermal conductivity of 900 - 2500. Manufactorers currently use synthetic diamonds or bort diamonds (low clarity bad coloring unfit for gem making) for cutting ect, they also use it to remove heat to keep other parts of the machinery from overheating, but as new advances in synthetic diamond manufactoring continue, we may see the day where heatsinks are made of diamond.
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post #2 of 8
Good FAQ, you might want to remove that bit at the end about being "In line with todays phase change" though, because air cooling will only get you down to ambient, while phase change will go sub-ambient. 2 totally different things. Looks like a great FAQ though, especially
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post #3 of 8
Thread Starter 
Ah thanks. Imagine not far before diamond heatsinks... Diamond thermal compounds! Transfering heat faster than the heatsink can, . I never knew diamond was so thermally conductive, I just had to mention it.
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post #4 of 8
Lol I saw it on a movie they used blue diamonds or something for a laser....

Nice FAQ though
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post #5 of 8
I have some diamond compound, will it work?
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post #6 of 8
Thread Starter 
Depends on whats in it for the cooling transfer, but it will not mess anything up so mine as well try.

EDIT: As in depends on how much diamond is in it.
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post #7 of 8
http://www.overclock.net/other-cooli...tml#post898812
check that out... maybe its got diamonds in it! jk it says its all metal...
but really, i never knew AS5 was so bad at transfering heat in comparison with the heatsink... well now i know why they say not to put too much on!
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post #8 of 8
Great faq!
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