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Medium-range order changes in a fused silicate: the first step towards crystallisation (in-situ x-ray diffraction and absorption measurement at high temperature) - DIFFABS  
 

Ice formation, the crystallisation of igneous rock, and metallurgical and vitroceramic processes are a few examples which illustrate the importance of the crystallisation of liquids in natural and industrial processes. On a microscopic scale, however, the structural rearrangements that characterise the initial stages of the crystallisation of an amorphous material are not well understood. This leaves tremendous scope to improve the control and the understanding of crystallisation, particularly at high degrees of supercooling, where the transformation is highly irreversible. This is the context in which we decided to study medium-range changes of order occurring in a fused silicate starting to crystallise in the presence of a nucleating agent...


 
 
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Description

The range of instrumental techniques that can be used on this line concerns numerous sectors of fundamental research and finalized applied research (oil industry, nuclear field , metallurgy) among which the science of materials and chemistry hold a predominant position. In particular, in situ studies of the transformations in materials at ultra-high temperature will be the domain of excellence of this line. The interest of coupled absorption, or coupled - diffraction measurements on powders or monocristalssingle crystals, is to ensure that both experiments are carried out on the same zone of the sample, in absolutely identical physico-chemical conditions (temperature, pressure, reactive atmosphere around the sample), which is very important for establishing correlations between the information provided by both types of measurements in the case of complex materials or materials under extreme conditions.
 

Données techniques
Thématiques scientifiques
Contacts

Dominique THIAUDIERE
beamline responsible 

Tel: 01 69 35 96 16 dominique.thiaudiere@synchrotron-soleil.fr
Cristian MOCUTA
Scientifique
 
Tel: 01 69 35 81 20 cristian.mocuta@synchrotron-soleil.fr
Solenn REGUER
Scientifique
 
Tel: 01 69 35 97 27 solenn.reguer@synchrotron-soleil.fr

Filipe ALVES
Assistant ingénieur
 

Tel: 01 69 35 96 42 filipe.alves@synchrotron-soleil.fr
Guillaume GEANDIER
Post-Doc
 
Tel: 01 69 35 xx xx geandier@synchrotron-soleil.fr
Florian KERGOURLAY
Doctorant
Tel: 01 69 35 81 06 kergourlay@synchrotron-soleil.fr

Sur DIFFABS

Salle de pilotage
Atelier
 

Tel: 01 69 35 97 11
Tel: 01 69 35 97 24
 
 

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 General information:

Preliminary project

Notice

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