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

Research output: Contribution to journalArticle

44 Citations (Scopus)

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.
LanguageEnglish
Article number225702
Number of pages4
JournalPhysical Review Letters
Volume103
Issue number22
Early online date23 Nov 2009
DOIs
StatusPublished - 27 Nov 2009

Fingerprint

liquid phases
aluminum oxides
liquids
solid phases
neutron scattering
x ray diffraction
signatures
cooling
temperature
energy

Cite this

Barnes, A. C., Skinner, L. B., Salmon, P. S., Bytchkov, A., Pozdnyakova, I., Farmer, T. O., & Fischer, H. E. (2009). Liquid-liquid phase transition in supercooled yttria-alumina. Physical Review Letters, 103(22), [225702]. https://doi.org/10.1103/PhysRevLett.103.225702

Liquid-liquid phase transition in supercooled yttria-alumina. / Barnes, A C; Skinner, L B; Salmon, Philip S; Bytchkov, A; Pozdnyakova, I; Farmer, T O; Fischer, H E.

In: Physical Review Letters, Vol. 103, No. 22, 225702, 27.11.2009.

Research output: Contribution to journalArticle

Barnes, AC, Skinner, LB, Salmon, PS, Bytchkov, A, Pozdnyakova, I, Farmer, TO & Fischer, HE 2009, 'Liquid-liquid phase transition in supercooled yttria-alumina', Physical Review Letters, vol. 103, no. 22, 225702. https://doi.org/10.1103/PhysRevLett.103.225702
Barnes AC, Skinner LB, Salmon PS, Bytchkov A, Pozdnyakova I, Farmer TO et al. Liquid-liquid phase transition in supercooled yttria-alumina. Physical Review Letters. 2009 Nov 27;103(22). 225702. https://doi.org/10.1103/PhysRevLett.103.225702
Barnes, A C ; Skinner, L B ; Salmon, Philip S ; Bytchkov, A ; Pozdnyakova, I ; Farmer, T O ; Fischer, H E. / Liquid-liquid phase transition in supercooled yttria-alumina. In: Physical Review Letters. 2009 ; Vol. 103, No. 22.
@article{f97fe8d0ec724d90893d389c09d4edf2,
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.",
author = "Barnes, {A C} and Skinner, {L B} and Salmon, {Philip S} and A Bytchkov and I Pozdnyakova and Farmer, {T O} and Fischer, {H E}",
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).",
year = "2009",
month = "11",
day = "27",
doi = "10.1103/PhysRevLett.103.225702",
language = "English",
volume = "103",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "22",

}

TY - JOUR

T1 - Liquid-liquid phase transition in supercooled yttria-alumina

AU - Barnes, A C

AU - Skinner, L B

AU - Salmon, Philip S

AU - Bytchkov, A

AU - Pozdnyakova, I

AU - Farmer, T O

AU - Fischer, H E

N1 - 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).

PY - 2009/11/27

Y1 - 2009/11/27

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.

UR - http://www.scopus.com/inward/record.url?scp=72649089759&partnerID=8YFLogxK

UR - http://dx.doi.org/10.1103/PhysRevLett.103.225702

U2 - 10.1103/PhysRevLett.103.225702

DO - 10.1103/PhysRevLett.103.225702

M3 - Article

VL - 103

JO - Physical Review Letters

T2 - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 22

M1 - 225702

ER -