Liquid-liquid phase transition in supercooled yttria-alumina

A C Barnes; L B Skinner; Philip S Salmon; A Bytchkov; I Pozdnyakova; T O Farmer; H E Fischer

doi:10.1103/PhysRevLett.103.225702

Liquid-liquid phase transition in supercooled yttria-alumina

A C Barnes
, L B Skinner
, Philip S Salmon
, A Bytchkov
, I Pozdnyakova
, T O Farmer
, H E Fischer

Department of Physics

Research output: Contribution to journal › Article › peer-review

61 Citations (SciVal)

319 Downloads (Pure)

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.

Original language	English
Article number	225702
Number of pages	4
Journal	Physical Review Letters
Volume	103
Issue number	22
Early online date	23 Nov 2009
DOIs	https://doi.org/10.1103/PhysRevLett.103.225702
Publication status	Published - 27 Nov 2009

Bibliographical note

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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10.1103/PhysRevLett.103.225702

Salmon_PRL_2009_103_225702.pdf
Copyright 2009 by the American Physical Society

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title = "Liquid-liquid phase transition in supercooled yttria-alumina",

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.",

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note = "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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AU - Skinner, L B

AU - Salmon, Philip S

AU - Bytchkov, A

AU - Pozdnyakova, I

AU - Farmer, T O

AU - Fischer, H E

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N2 - 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.

AB - 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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Liquid-liquid phase transition in supercooled yttria-alumina

Abstract

Bibliographical note

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Glassy and Liquid Networks: Deformability and Manipulation

DESIGN OF INTERMEDIATE RANGE ORDER IN AMORPHOUS MATERIALS

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Liquid-liquid phase transition in supercooled yttria-alumina

Abstract

Bibliographical note

Access to Document

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Projects

Glassy and Liquid Networks: Deformability and Manipulation

DESIGN OF INTERMEDIATE RANGE ORDER IN AMORPHOUS MATERIALS

Cite this