Figure 9

Oxidation state of U in Ca_1-xU_xZrTi_2-2xIn_2xO₇ (x = 0.05, 0.10; air and argon) calculated by linear regression of E₀ position relative to reference compounds (U⁴⁺O₂, U⁴⁺Ti₂O₆, U⁴⁺SiO₄, U⁵⁺SbO₅, U⁵⁺MoO₄, LaU⁵⁺O₅, CaU⁶⁺O₄, Ca₃U⁶⁺O₆ and MgU⁶⁺O₄).