Reactions of Molten Titanium with Certain Refractory Oxides

Titanium metal was melted in vacuo in contact with , , and respectively. The metal reacted vigorously with , less so with , and slightly with . Qualitatively, the relative positions of the oxides on the scale of reactivity with titanium are consistent with the oxygen dissociation pressures as calculated from thermochemical data. It was concluded that of the three oxides studied only thorium oxide showed any promise as a crucible material for melting titanium or titaniumbase alloys.