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On the miscibility gap in monazite–xenotime systems

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Abstract

The regular solid solution model has been applied to solid solubility in the monazite–xenotime systems and is verified against the available experimental data for LaPO4–YPO4 and CePO4–YPO4 systems. The model is then used to predict the miscibility gaps in a number of other monazite–xenotime systems. The implications for prospective two-phase monazite–xenotime fiber coatings for applications in ceramic matrix composites (CMCs) are discussed.

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Notes

  1. All radii cited in this study are eight coordinated ion radii

  2. See Sect. 5 for more on Young’s modulus of monazite and xenotime orthophosphates

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Acknowledgments

This work was supported by the Air Force Research Laboratory (AFRL), Materials and Manufacturing Directorate, under Contract No. F33615-01-C-5214. The author would like to thank Kristen Keller (UES Inc.) and Dr. Randall Hay (Air Force Research Laboratory) for critically reading the manuscript and useful suggestions.

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  1. UES Inc., 4401 Dayton-Xenia Rd., Dayton, OH, 45432, USA

    P. Mogilevsky

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Mogilevsky, P. On the miscibility gap in monazite–xenotime systems. Phys Chem Minerals 34, 201–214 (2007). https://doi.org/10.1007/s00269-006-0139-1

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