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Université d'Orléans |  |
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Université d'Orléans | |
| HAL: hal-00465234, version 1 |
| arXiv: 1004.2353 |
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| Rearrangement of the structure during nucleation of a cordierite glass doped with TiO2 |
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Marie Guignard 1Laurent Cormier 1 |
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| (2010-03-19) |
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| Ordering of disordered materials occurs during the activated process of nucleation that requires the formation of critical clusters that have to surmount a thermodynamic barrier. The characterization of these clusters is experimentally challenging but mandatory to improve nucleation theory. In this paper, the nucleation of a magnesium aluminosilicate glass containing the nucleating oxide TiO2 is investigated using neutron scattering with Ti isotopic substitution and 27Al NMR. We identified the structural changes induced by the formation of crystals around Ti atoms and evidenced important structural reorganization of the glassy matrix. |
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| 1: | Institut de minéralogie et de physique des milieux condensés (IMPMC) |
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CNRS : UMR7590 – IPG PARIS – Université Pierre et Marie Curie [UPMC] - Paris VI – Université Paris VII - Paris Diderot |
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| 2: | Conditions Extrêmes et Matériaux : Haute Température et Irradiation (CEMHTI) |
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CNRS : UPR3079 – Université d'Orléans |
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| 3: | Fédération RMN du Solide à Hauts Champs (FRMN-SHC) |
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CNRS : FR2950 – Université d'Orléans |
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| 4: | ISIS Facility |
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STFC Rutherford Appleton Laboratory |
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| 5: | Laboratoire Léon Brillouin (LLB) |
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CNRS : UMR12 – CEA : DSM/IRAMIS |
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| Subject | : | Physics/Condensed Matter/Materials Science Chemical Sciences/Material chemistry Physics/Condensed Matter/Disordered Systems and Neural Networks |
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| glass – nucleation – neutron diffraction – solid state NMR – electronic microscopy |
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| hal-00465234, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00465234 | |
| oai:hal.archives-ouvertes.fr:hal-00465234 | |
| From: Laurent Cormier | |
| Submitted on: Thursday, 25 March 2010 16:47:47 | |
| Updated on: Wednesday, 14 April 2010 10:45:15 | |
