fig3

Figure 3. Temperature-dependent κ_L for (A) C222₁ RETa₃O₇ and (B) RE₂Zr₂O₇ pyrochlore oxides by the combinatorial approach (κ₍₂₎(Θ₍₂₎(γ⁽³⁾))) with 5% porosity correction; (C) κ_L values at 300 and 1,473 K. Calculated K_IC by K₀⁽ⁿ⁾ where n = 1-4 of for (D) RE₃TaO₇ and (E) RE₂Zr₂O₇ oxides, together with the reported result^[69-80]; (F) Comparison of the minimum and maximum predicted K_IC values by K₀⁽¹⁾.