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Formation of metastable monoclinic rare earth sesquioxides from the melt

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Abstract

A number of rare earth sesquioxides prepared by rapid cooling of the melt consist entirely of the metastable monoclinic (B) form or a mixture of B and the cubic (C) form which is stable at room temperature. This may be explained by suppression of the B to C transformation for Sm2O3, Eu2O3, Tb2O3 but the B-form is metastable at all temperatures for Y2O3, Er2O3 and Yb2O3 and its appearance in these oxides is thus related to the nucleation kinetics of B and C from the melt.

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References

  1. R. S. Roth andS. J. Schneider,J. Res. Nat. Bur. Stand. 64A (1960) 309.

    Google Scholar 

  2. I. Warshaw andR. Roy,J. Phys. Chem. 65 (1961) 2048.

    Google Scholar 

  3. H. R. Hoekstra andK. A. Gingerich,Science 145 (1964) 1163.

    Google Scholar 

  4. M. Foex andJ.-P. Traverse,Rév. Int. Hautes Tempér. Réfract. 3 (1966) 429.

    Google Scholar 

  5. J.-P. Coutures, R. Verges andM. Foex,ibid. 12 (1975) 181.

    Google Scholar 

  6. W. H. Zachariasen in “The Actinide Elements”, edited by G. T. Seaborg and J. J. Katz (McGraw-Hill, New York, 1954).

    Google Scholar 

  7. H. R. Hoekstra,Inorg. Chem. 5 (1966) 754.

    Google Scholar 

  8. P. T. Sarjeant andR. Roy,J. Amer. Ceram. Soc. 50 (1967) 500.

    Google Scholar 

  9. J.-P. Coutures, J. Coutures, R. Renard andG. Benezech,Comp. Rend. Acad. Sci. 275 (1972) 1203.

    Google Scholar 

  10. R. McPherson andG. J. Bailey,J. Mater. Sci. 16 (1981) 504.

    Google Scholar 

  11. R. McPherson,ibid. 15 (1980) 3141.

    Google Scholar 

  12. Idem, ibid. 8 (1973) 851.

    Google Scholar 

  13. B. Cantor andR. D. Doherty,Acta Met. 27 (1979) 33.

    Google Scholar 

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McPherson, R. Formation of metastable monoclinic rare earth sesquioxides from the melt. J Mater Sci 18, 1341–1345 (1983). https://doi.org/10.1007/BF01111952

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  • DOI: https://doi.org/10.1007/BF01111952

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