I have been looking for the phase diagram of alumina or Aluminium oxide, could it be that there is not something like that?

thank you


There is really not much to it. Basically you have a metal and an oxide phase, and never the twain shall mix significantly even after melting the oxide above 2000°C [1]. The suboxide that is sometimes mentioned, $\ce{Al2O}$, is not indicated here.

enter image description here From Ref. 1


1. S. Das, "The Al-O-Ti System", J. Phase Equilibria 23(6) (2002), 525-536.

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    $\begingroup$ thank you so much $\endgroup$ – Santiago Celis Patiño Jul 9 at 21:13
  • $\begingroup$ sciencedirect.com/science/article/pii/… is another reference - it also shows no other binary phases, although it does show an ionic liquid of Al2O3 composition with a miscibility gap to the Al liquid. $\endgroup$ – Jon Custer Jul 9 at 21:50
  • $\begingroup$ This diagram shows the ionic liquid as well, its saturation line is the short segment on the upper right. $\endgroup$ – Oscar Lanzi Jul 9 at 22:09

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