Molten diamond

Space/Science » in reply to So what becomes of Arthur C. Clarke's Jovian core made of diamond the size of Earth?

Molten diamond

Adam — 12/1/2008 10:59:18 PM (archived)

Hi Larry

At 6000 K and a few megabar diamond becomes liquid, which sounds bizarre but it's a pressure thing. At regular pressures it just decomposes into graphite, which sublimates AFAIK in anaerobic conditions. Else it burns when there's oxygen at 900 C or so. Neptune and Uranus might have diamond rain in their deep layers.

The whole thread (14 posts)

Jupiter's Core Bigger And Icier Than Thought - Socrates II - 11/26/2008 3:17:48 AM
- re: Icy Outer Planets - BRFelix - 11/30/2008 6:51:18 PM
  - Well actually... - Adam - 12/1/2008 10:53:08 PM
    - re: True enough - BRFelix - 12/3/2008 7:32:35 PM
- Suggests a single computational model. Wait for Juno. (n/t) - et - 11/26/2008 7:35:08 PM
  - Bilitzer makes that same point... - Adam - 11/27/2008 10:40:49 PM
    - Depends what you mean by "solid" - Nick Hoffman - 11/27/2008 11:08:21 PM
      - re: Depends what you mean by "solid" - Marcia - 11/28/2008 2:26:27 AM
        
        I meant it thew way I said it - nick hoffman - 12/1/2008 7:13:40 AM
        
        re: Ok then. - Marcia - 12/1/2008 6:55:25 PM
        
        As they say, there's no such thing as a stupid question - Nick Hoffman - 12/1/2008 10:26:21 PM
        
        So what becomes of Arthur C. Clarke's Jovian core made of diamond the size of Earth? - Socrates II - 12/1/2008 3:05:16 AM
        
        Molten diamond - Adam - 12/1/2008 10:59:18 PM
        
        I guess we may never know. (n/t) - Jacob - 12/1/2008 9:48:21 PM

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