Figure 7

Coordination numbers of Ti, Fe, O and Ti, Fe, Na bonded to oxygen in the (a) 2FeO-3TiO2 system without Na2O and (b) the 2FeO-3TiO2 system with 9 mol% Na2O at 1823 K. Ti–O, black; Fe–O, red; Na–O, blue.

Coordination numbers of Ti, Fe, O and Ti, Fe, Na bonded to oxygen in the (a) 2FeO-3TiO2 system without Na2O and (b) the 2FeO-3TiO2 system with 9 mol% Na2O at 1823 K. Ti–O, black; Fe–O, red; Na–O, blue.