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 f...
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Published in | Physical review letters Vol. 103; no. 22; p. 225702 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
27.11.2009
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Online Access | Get more information |
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Summary: | 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. |
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ISSN: | 1079-7114 |
DOI: | 10.1103/PhysRevLett.103.225702 |