Mn - O (Manganese - Oxygen)

Jo Fenstad, Pierre Perrot

Literature Data

The first realistic, although qualitative Mn-O diagram was proposed by [1930Ben] which pointed out the refractory character of MnO and the existence of a miscibility gap in the liquid phase. Recent papers [1992Wan, 2003Gru] have summarised the literature presented in Table 1 and assessed the Mn-O diagram by computational means in which “local” accuracy is often sacrificed to ensure that “globally” coherent phase diagrams are produced with a lowest possible number of adjustable parameters. Apart from these, one computational effort [1998Cha2] is noteworthy for using Bayesian statistics to co-optimise the enthalpies and entropies of formation for a large number of oxides, including all stable manganese oxides. They selected data for a few oxides as “fixed points”. Some of those are now ripe for an update [1999Sha]. [2003Gru...