What is the most thermally conductive material in the universe? (natural or synthetic)?

September 6th, 2008 by admin | Filed under Physics.
synthetic diamonds
Eric N asked:


I know that copper and silver are neck and neck, with diamond dominating copper five-fold. I’ve heard that liquid He is like a thermal super conductor in its super fluid state, but I have yet to see the numbers.
I know that copper and silver are neck and neck, with diamond dominating copper five-fold. I’ve heard that liquid He is like a thermal super conductor in its super fluid state, but I have yet to see the numbers.

I just wanted the best KNOWN conductor.

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2 Responses to “What is the most thermally conductive material in the universe? (natural or synthetic)?”

  1. I'm naked | 8/09/08

    The most thermally conductive material in the universe hasn’t been discovered yet.

  2. Dr. R | 9/09/08

    Diamond is the best thermal conductor at room temperature. High purity oxygen free copper’s conductivity climbs by orders of magnitude as the temperature falls toward absolute zero. I don’t know what is best near zero kelvin, though.