Oxides based on the fluorite structure are important both in nuclear energy and as solid electrolytes, catalysts, and thermal barrier coatings. Experimental thermochemical data on the energetics of doping these oxides with trivalent rare earth elements are summarized. The data clearly show the competition among phase transitions, strain energy, and defect clustering in determining the thermodynamics of mixing and the extent of solid solution.

Recent thermochemical studies of fluorite-structured oxides containing, U, Th, Ce, Zr, and Hf

245th National Meeting (2013)

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