Phys. Rev. Lett. 103, 225702 (2009) [4 pages]Liquid-Liquid Phase Transition in Supercooled Yttria-Alumina
The structure and thermal characteristics of aerodynamically levitated samples of yttria-alumina in the liquid, supercooled liquid and solid phases were explored in an extensive series of high energy x-ray diffraction, small angle neutron scattering, and pyrometric cooling measurements. Particular focus was placed on the compound (Y2O3)x(Al2O3)1-x with x=0.2 for which a liquid-liquid phase transition at a temperature of 1788 K has recently been reported. No structural or thermal signature in support of this metastable phase transition could be found. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.225702
DOI:
10.1103/PhysRevLett.103.225702
PACS:
64.70.Ja, 61.05.cp, 61.20.Lc, 64.60.My
See AlsoComment: G. N. Greaves, M. C. Wilding, L. Hennet, D. Langstaff, F. Kargl, C. J. Benmore, and J. K. R. Weber, Comment on “Liquid-Liquid Phase Transition in Supercooled Yttria-Alumina”, Phys. Rev. Lett. 106, 119601 (2011). |
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