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Predicted pyrochlore to fluorite disorder temperature for A2Zr2O7 compositions

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Abstract

In a previous publication the order–disorder pyrochlore to fluorite transformation temperatures for a series of A2Hf2O7 pyrochlores were predicted [C.R. Stanek and R.W. Grimes: Prediction of rare-earth A2Hf2O7 pyrochlore phases.J. Am. Ceram. Soc. 2002,85, p. 2139]. This was facilitated by establishing a relationship between these temperatures and the energy required to introduce a specific defect structure into the perfect pyrochlore lattice. Here an equivalent relationship for A2Zr2O7 pyrochlores was generated, and from this the disorder temperatures for a number of compositions including Eu2Zr2O7 were predicted.

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Correspondence to Robin W. Grimes.

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Rushton, M.J.D., Grimes, R.W., Stanek, C.R. et al. Predicted pyrochlore to fluorite disorder temperature for A2Zr2O7 compositions. Journal of Materials Research 19, 1603–1604 (2004). https://doi.org/10.1557/JMR.2004.0231

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  • DOI: https://doi.org/10.1557/JMR.2004.0231

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