Liquid-liquid phase transition in supercooled yttria-alumina
Reference:
Barnes, A. C., Skinner, L. B., Salmon, P. S., Bytchkov, A., Pozdnyakova, I., Farmer, T. O. and Fischer, H. E., 2009. Liquid-liquid phase transition in supercooled yttria-alumina. Physical Review Letters, 103 (22), 225702.
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Official URL:
http://dx.doi.org/10.1103/PhysRevLett.103.225702
Abstract
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.
Details
| Item Type | Articles |
| Creators | Barnes, A. C., Skinner, L. B., Salmon, P. S., Bytchkov, A., Pozdnyakova, I., Farmer, T. O. and Fischer, H. E. |
| DOI | 10.1103/PhysRevLett.103.225702 |
| Departments | Faculty of Science > Physics |
| Publisher Statement | Salmon_PRL_2009_103_225702.pdf: Copyright 2009 by the American Physical Society |
| Refereed | Yes |
| Status | Published |
| ID Code | 17377 |
| Additional Information | See also: 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) And: A. C. Barnes, L. B. Skinner, P. S. Salmon, A. Bytchkov, I. Pozdnyakova, T. O. Farmer, and H. E. Fischer, Barnes et al. Reply:, Phys. Rev. Lett. 106, 119602 (2011). |
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