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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Drewitt, James W. E.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2022Boron incorporation in silicate melt
- 2022The glass transition and the non-Arrhenian viscosity of carbonate meltscitations
- 2022The glass transition and the non-Arrhenian viscosity of carbonate meltscitations
- 2022Boron incorporation in silicate melt:pressure-induced coordination changes and implications for B isotope fractionation
- 2021Structure of levitated Si-Ge melts studied by high-energy x-ray diffraction in combination with reverse Monte Carlo simulationscitations
- 2019Configurational constraints on glass formation in the liquid calcium aluminate systemcitations
- 2017Structure of rare-earth chalcogenide glasses by neutron and x-ray diffractioncitations
- 2016Neutron diffraction of calcium aluminosilicate glasses and meltscitations
- 2013Structure of (FexCa1-xO)(y)(SiO2)(1-y) liquids and glasses from high-energy x-ray diffractioncitations
- 2013Fragile glass - formers reveal their structural secrets
- 2013Structure of (FexCa1-xO)(y)(SiO2)(1-y) liquids and glasses from high-energy x-ray diffraction:Implications for the structure of natural basaltic magmascitations
- 2011Application of time resolved x-ray diffraction to study the solidification of glass-forming melts
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article
Structure of (FexCa1-xO)(y)(SiO2)(1-y) liquids and glasses from high-energy x-ray diffraction
Abstract
<p>The atomistic structure of (FexCa1-xO)(y) (SiO2)(1-y) liquids, namely, fayalite (x = 1, y = 0.667), ferrosilite (x = 1, y = 0.5), and hedenbergite (x = 0.5, y = 0.5), was measured by using high-energy x-ray diffraction combined with laser-heated aerodynamic levitation. Measurements were also made for hedenbergite glass, formed via supercooling the liquid. The results unequivocally prove that Fe atoms are both four and sixfold coordinated by oxygen atoms in all compositions studied from the two distinct bond distances measured at r(FeO) = 1.93 and 2.20 angstrom, respectively. The results quantitatively reveal up to 40% and 55% FeO6 species residing in liquid fayalite and ferrosilite, respectively. From the real-space peak positions, the results also reveal the presence of both FeO4 and FeO6 species within a basaltic liquid and glass for which the geophysical consequences are briefly discussed.</p>