Influence of ZrO2 alloying effect on the thermophysical properties of fluorite-type Eu3TaO7 ceramics

Schematic drawings and thermal conduction properties of x mol% ZrO2-Eu3TaO7 (x = 0, 3, 6, 9, 12, 15) ceramics; (a) Zr4+ ions substitute Ta5+ and Eu3+ ions; (b) crystal structure and principle diagram of phonon scattering in 2 × 2 × 1 supercell of ZrO2 alloying Eu3TaO7 ceramics, I-Eu3+ and I-Ta5+ represent the interstitial Eu3+ and Ta5+ ions; (c) thermal conductivity; (d) phonon mean free paths.296