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What material changes temperature fast?

  1. Jul 3, 2018 #1
    What sort of materials or elements heat up really fast but also cool down fast as well?

    Thanks in advance
  2. jcsd
  3. Jul 3, 2018 #2
  4. Jul 3, 2018 #3
  5. Jul 3, 2018 #4
    Materials with high thermal diffusivity: thermal conductivity divided by (density x heat capacity).
  6. Jul 4, 2018 #5
    @Chestermiller is correct. I was incomplete in my answer.

    Just to clarify: a low heat capacity means you only need a little heat to increase the temperature [say by 1 Kelvin], and a high thermal conductivity means that this heat is 'absorbed' by the material fast.
  7. Jul 4, 2018 #6
    What about the cooling down?
  8. Jul 4, 2018 #7
    Same, of course.
  9. Jul 4, 2018 #8
    Wiki says: Diamond is renowned for its superlative properties ........... In particular, it has the highest hardness and thermal conductivity of any bulk material.
  10. Jul 5, 2018 #9
    What about its thermal diffusivity? How does that compare?
  11. Jul 10, 2018 #10


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    It depends on how you heat and how you cool the material. Is it by radiation, convection or thermal conduction?
    What shape is the material? A fine sheet of mesh will heat and cool very rapidly. It would be easier to make a mesh from carbon fibre than diamond.
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