Liquid-liquid transitions, crystallization and long range fluctuations in supercooled yttrium oxide-aluminium oxide melts

G. N. Greaves; M. C. Wilding; S. Fearn; F. Kargl; L. Hennet; W. Bras; O. Majerus; Chris M. Martin

doi:10.1016/j.jnoncrysol.2009.01.030

Liquid-liquid transitions, crystallization and long range fluctuations in supercooled yttrium oxide-aluminium oxide melts

G. N. Greaves, M. C. Wilding, S. Fearn, F. Kargl, L. Hennet, W. Bras, O. Majerus, Chris M. Martin

Adran Ffiseg

Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

18 Dyfyniadau (Scopus)

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Employing small angle X-ray scattering (SAXS) and wide angle X-ray scattering (WAXS) combined with laser-heated aerodynamic levitation has enabled different transitions in Supercooled yttrium oxide-aluminium oxide to be distinguished. These include liquid-liquid phase transitions as well as high temperature crystallization for different compositions. Prerequisites for avoiding crystallization in order to reveal polyamorphic phase separation in the supercooled state are established. We also show how the rise in SAXS intensity at low wavevectors can be used to identify correlation distances in long range fluctuations in high temperature melts. These distances appear to scale with melt viscosity and to extend temporarily during liquid-liquid transitions.

Iaith wreiddiol	Saesneg
Tudalennau (o-i)	715-721
Nifer y tudalennau	7
Cyfnodolyn	Journal of Non-Crystalline Solids
Cyfrol	355
Rhif cyhoeddi	10-12
Dyddiad ar-lein cynnar	10 Ebr 2009
Dynodwyr Gwrthrych Digidol (DOIs)	https://doi.org/10.1016/j.jnoncrysol.2009.01.030
Statws	Cyhoeddwyd - 01 Mai 2009

Mynediad at Ddogfen

10.1016/j.jnoncrysol.2009.01.030

http://hdl.handle.net/2160/3883

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Dolen barhaus

Dyfynnu hyn

@article{a1e29bed5d9d42518e5dd79ac330581f,

title = "Liquid-liquid transitions, crystallization and long range fluctuations in supercooled yttrium oxide-aluminium oxide melts",

abstract = "Employing small angle X-ray scattering (SAXS) and wide angle X-ray scattering (WAXS) combined with laser-heated aerodynamic levitation has enabled different transitions in Supercooled yttrium oxide-aluminium oxide to be distinguished. These include liquid-liquid phase transitions as well as high temperature crystallization for different compositions. Prerequisites for avoiding crystallization in order to reveal polyamorphic phase separation in the supercooled state are established. We also show how the rise in SAXS intensity at low wavevectors can be used to identify correlation distances in long range fluctuations in high temperature melts. These distances appear to scale with melt viscosity and to extend temporarily during liquid-liquid transitions.",

keywords = "diffraction and scattering measurements, synchrotron radiation, x-ray diffraction, glass formation, glass transition, phases and equilibria, structure, fluctuations, x-rays, X-ray diffraction",

author = "Greaves, {G. N.} and Wilding, {M. C.} and S. Fearn and F. Kargl and L. Hennet and W. Bras and O. Majerus and Martin, {Chris M.}",

note = "Greaves, G. N., Wilding, M. C., Fearn, S., Kargl, F., Hennet, L., Bras, W., Majerus, O., Martin, C. M. (2009). Liquid–liquid transitions, crystallization and long range fluctuations in supercooled yttrium oxide–aluminium oxide melts. Journal of Non-Crystalline Solids, 355 (10-12), 715-721",

year = "2009",

month = may,

day = "1",

doi = "10.1016/j.jnoncrysol.2009.01.030",

language = "English",

volume = "355",

pages = "715--721",

journal = "Journal of Non-Crystalline Solids",

issn = "0022-3093",

publisher = "Elsevier",

number = "10-12",

}

TY - JOUR

T1 - Liquid-liquid transitions, crystallization and long range fluctuations in supercooled yttrium oxide-aluminium oxide melts

AU - Greaves, G. N.

AU - Wilding, M. C.

AU - Fearn, S.

AU - Kargl, F.

AU - Hennet, L.

AU - Bras, W.

AU - Majerus, O.

AU - Martin, Chris M.

N1 - Greaves, G. N., Wilding, M. C., Fearn, S., Kargl, F., Hennet, L., Bras, W., Majerus, O., Martin, C. M. (2009). Liquid–liquid transitions, crystallization and long range fluctuations in supercooled yttrium oxide–aluminium oxide melts. Journal of Non-Crystalline Solids, 355 (10-12), 715-721

PY - 2009/5/1

Y1 - 2009/5/1

N2 - Employing small angle X-ray scattering (SAXS) and wide angle X-ray scattering (WAXS) combined with laser-heated aerodynamic levitation has enabled different transitions in Supercooled yttrium oxide-aluminium oxide to be distinguished. These include liquid-liquid phase transitions as well as high temperature crystallization for different compositions. Prerequisites for avoiding crystallization in order to reveal polyamorphic phase separation in the supercooled state are established. We also show how the rise in SAXS intensity at low wavevectors can be used to identify correlation distances in long range fluctuations in high temperature melts. These distances appear to scale with melt viscosity and to extend temporarily during liquid-liquid transitions.

AB - Employing small angle X-ray scattering (SAXS) and wide angle X-ray scattering (WAXS) combined with laser-heated aerodynamic levitation has enabled different transitions in Supercooled yttrium oxide-aluminium oxide to be distinguished. These include liquid-liquid phase transitions as well as high temperature crystallization for different compositions. Prerequisites for avoiding crystallization in order to reveal polyamorphic phase separation in the supercooled state are established. We also show how the rise in SAXS intensity at low wavevectors can be used to identify correlation distances in long range fluctuations in high temperature melts. These distances appear to scale with melt viscosity and to extend temporarily during liquid-liquid transitions.

KW - diffraction and scattering measurements

KW - synchrotron radiation

KW - x-ray diffraction

KW - glass formation

KW - glass transition

KW - phases and equilibria

KW - structure

KW - fluctuations

KW - x-rays

KW - X-ray diffraction

U2 - 10.1016/j.jnoncrysol.2009.01.030

DO - 10.1016/j.jnoncrysol.2009.01.030

M3 - Article

SN - 0022-3093

VL - 355

SP - 715

EP - 721

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

IS - 10-12

ER -

Liquid-liquid transitions, crystallization and long range fluctuations in supercooled yttrium oxide-aluminium oxide melts

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