Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering

G. Neville Greaves; Martin C. Wilding; Quang Vu Van; Odile Majérus; Louis Hennet

doi:10.1063/1.3086239

Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering

G. Neville Greaves^*, Martin C. Wilding, Quang Vu Van, Odile Majérus, Louis Hennet

^*Corresponding author for this work

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference Proceeding (Non-Journal item)

1 Citation (Scopus)

Abstract

Small angle x‐ray scattering (SAXS) has been measured in the wavevector range 0.01<Q<1 math−1 for supercooled yttria‐alumina melts using a laser‐heated aerodynamic furnace. SAXS intensity rises gradually with temperature reflecting density fluctuations deriving from isothermal compressibility. With decreasing Q a minimum is located close to 0.1 math−1 at the foot of the inter‐atomic structure factor, below which SAXS rises, suggesting scatter from longer range fluctuating volumes.

Original language	English
Title of host publication	SYNCHROTRON RADIATION IN MATERIALS SCIENCE
Subtitle of host publication	Proceedings of the 6th International Conference on Synchrotron Radiation in Materials Science
Editors	Rogério Magalhaes Paniago
Place of Publication	MELVILLE
Publisher	American Institute of Physics
Pages	71-74
Number of pages	4
Volume	1092
ISBN (Print)	978-0-7354-0625-4
DOIs	https://doi.org/10.1063/1.3086239
Publication status	Published - 29 Jan 2009
Event	6th International Conference on Synchrotron Radiation in Materials Sciences - Campinas, Brazil Duration: 20 Jul 2008 → 23 Jul 2008

Publication series

Name	AIP Conference Proceedings
Publisher	AMER INST PHYSICS
Volume	1092
ISSN (Print)	0094-243X

Conference

Conference	6th International Conference on Synchrotron Radiation in Materials Sciences
Country/Territory	Brazil
City	Campinas
Period	20 Jul 2008 → 23 Jul 2008

Keywords

density functional theory
Synchrotron Radiation
X-ray scattering

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10.1063/1.3086239

http://hdl.handle.net/2160/3886

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Greaves, G. N., Wilding, M. C., Van, Q. V., Majérus, O., & Hennet, L. (2009). Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering. In R. Magalhaes Paniago (Ed.), SYNCHROTRON RADIATION IN MATERIALS SCIENCE: Proceedings of the 6th International Conference on Synchrotron Radiation in Materials Science (Vol. 1092, pp. 71-74). (AIP Conference Proceedings; Vol. 1092). American Institute of Physics. https://doi.org/10.1063/1.3086239

Greaves, G. Neville ; Wilding, Martin C. ; Van, Quang Vu et al. / Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering. SYNCHROTRON RADIATION IN MATERIALS SCIENCE: Proceedings of the 6th International Conference on Synchrotron Radiation in Materials Science. editor / Rogério Magalhaes Paniago. Vol. 1092 MELVILLE : American Institute of Physics, 2009. pp. 71-74 (AIP Conference Proceedings).

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title = "Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering",

abstract = "Small angle x‐ray scattering (SAXS) has been measured in the wavevector range 0.01<Q<1 math−1 for supercooled yttria‐alumina melts using a laser‐heated aerodynamic furnace. SAXS intensity rises gradually with temperature reflecting density fluctuations deriving from isothermal compressibility. With decreasing Q a minimum is located close to 0.1 math−1 at the foot of the inter‐atomic structure factor, below which SAXS rises, suggesting scatter from longer range fluctuating volumes.",

keywords = "density functional theory, Synchrotron Radiation, X-ray scattering",

author = "Greaves, {G. Neville} and Wilding, {Martin C.} and Van, {Quang Vu} and Odile Maj{\'e}rus and Louis Hennet",

year = "2009",

month = jan,

day = "29",

doi = "10.1063/1.3086239",

language = "English",

isbn = "978-0-7354-0625-4",

volume = "1092",

series = "AIP Conference Proceedings",

publisher = "American Institute of Physics",

pages = "71--74",

editor = "{Magalhaes Paniago}, Rog{\'e}rio",

booktitle = "SYNCHROTRON RADIATION IN MATERIALS SCIENCE",

address = "United States of America",

note = "6th International Conference on Synchrotron Radiation in Materials Sciences ; Conference date: 20-07-2008 Through 23-07-2008",

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Greaves, GN, Wilding, MC, Van, QV, Majérus, O & Hennet, L 2009, Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering. in R Magalhaes Paniago (ed.), SYNCHROTRON RADIATION IN MATERIALS SCIENCE: Proceedings of the 6th International Conference on Synchrotron Radiation in Materials Science. vol. 1092, AIP Conference Proceedings, vol. 1092, American Institute of Physics, MELVILLE, pp. 71-74, 6th International Conference on Synchrotron Radiation in Materials Sciences, Campinas, Brazil, 20 Jul 2008. https://doi.org/10.1063/1.3086239

Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering. / Greaves, G. Neville; Wilding, Martin C.; Van, Quang Vu et al.
SYNCHROTRON RADIATION IN MATERIALS SCIENCE: Proceedings of the 6th International Conference on Synchrotron Radiation in Materials Science. ed. / Rogério Magalhaes Paniago. Vol. 1092 MELVILLE: American Institute of Physics, 2009. p. 71-74 (AIP Conference Proceedings; Vol. 1092).

Research output: Chapter in Book/Report/Conference proceeding › Conference Proceeding (Non-Journal item)

TY - GEN

T1 - Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering

AU - Greaves, G. Neville

AU - Wilding, Martin C.

AU - Van, Quang Vu

AU - Majérus, Odile

AU - Hennet, Louis

PY - 2009/1/29

Y1 - 2009/1/29

N2 - Small angle x‐ray scattering (SAXS) has been measured in the wavevector range 0.01<Q<1 math−1 for supercooled yttria‐alumina melts using a laser‐heated aerodynamic furnace. SAXS intensity rises gradually with temperature reflecting density fluctuations deriving from isothermal compressibility. With decreasing Q a minimum is located close to 0.1 math−1 at the foot of the inter‐atomic structure factor, below which SAXS rises, suggesting scatter from longer range fluctuating volumes.

AB - Small angle x‐ray scattering (SAXS) has been measured in the wavevector range 0.01<Q<1 math−1 for supercooled yttria‐alumina melts using a laser‐heated aerodynamic furnace. SAXS intensity rises gradually with temperature reflecting density fluctuations deriving from isothermal compressibility. With decreasing Q a minimum is located close to 0.1 math−1 at the foot of the inter‐atomic structure factor, below which SAXS rises, suggesting scatter from longer range fluctuating volumes.

KW - density functional theory

KW - Synchrotron Radiation

KW - X-ray scattering

U2 - 10.1063/1.3086239

DO - 10.1063/1.3086239

M3 - Conference Proceeding (Non-Journal item)

SN - 978-0-7354-0625-4

VL - 1092

T3 - AIP Conference Proceedings

SP - 71

EP - 74

BT - SYNCHROTRON RADIATION IN MATERIALS SCIENCE

A2 - Magalhaes Paniago, Rogério

PB - American Institute of Physics

CY - MELVILLE

T2 - 6th International Conference on Synchrotron Radiation in Materials Sciences

Y2 - 20 July 2008 through 23 July 2008

ER -

Greaves GN, Wilding MC, Van QV, Majérus O, Hennet L. Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering. In Magalhaes Paniago R, editor, SYNCHROTRON RADIATION IN MATERIALS SCIENCE: Proceedings of the 6th International Conference on Synchrotron Radiation in Materials Science. Vol. 1092. MELVILLE: American Institute of Physics. 2009. p. 71-74. (AIP Conference Proceedings). doi: 10.1063/1.3086239

Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering

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