| People | Locations | Statistics |
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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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Martinetto, Pauline
Université Grenoble Alpes
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2023Illustrating papyrus in Ancient Egyptcitations
- 2023A mobile instrument for joint X-ray fluorescence and diffraction measurements on complex-shape Cultural Heritage objectscitations
- 2021Influence of micro-structural features on the colour of nanocrystallised powders of hematite and visible-NIR reflectance spectra simulations
- 2021Non-invasive X-ray investigations of medieval sculptures: New insights on “applied tin-relief brocade” techniquecitations
- 2018In-situ powder diffraction study of molecular compounds under high energy milling: from amorphization to solid state transformation
- 2016Solid State Amorphization of β-Trehalose: A Structural Investigation Using Synchrotron Powder Diffraction and PDF Analysiscitations
- 2010Revisiting Maya Blue and Designing Hybrid Pigments by Archaeomimetism
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article
Solid State Amorphization of β-Trehalose: A Structural Investigation Using Synchrotron Powder Diffraction and PDF Analysis
Abstract
We have investigated the amorphization of β-trehalose by high energy milling using in situ and ex situ synchrotron powder diffraction and PDF analysis. From this analysis we show that amorphization takes place through a two-phase process involving an amorphous and a long-range ordered phase. The proportion and coherent domain size of the latter rapidly decrease with milling time until the whole sample appears amorphized. The PDF describing the local structure of the amorphous phase after two hours of milling is very close to that of a sample quenched from the liquid, and seems to continue to evolve for longer milling times. Their differences with the PDF expected for a rigid THL molecule confirm the existence of a conformational disorder of the torsion angles from the glycosidic linkage between the two cycles forming the molecule.