Estimating Free Energies of Formation of Titanate () and Zirconate () Pyrochlore Phases of Trivalent Lanthanides and Actinides
Figure 1
A relationship for coefficient and the ratio between charge and coordination number (CN) of the oxyanions oxide, hydroxide, sulfate, carbonate, perovskite and titanate and zirconate pyrochlore structural families. The charge/CN ratios for oxyanions in sulfate, carbonate, oxide, hydroxide, perovskite and titanate and zirconate pyrochlore families are 6/4, 4/3, 4/3, 1/1, 4/3 and 4/6, respectively.