Rearrangement of the structure during nucleation of a cordierite glass doped with TiO2

Details Rearrangement of the structure during nucleation of a cordierite glass doped with TiO2 Rearrangement of the structure during nucleation of a cordierite glass doped with TiO2

2010-04-14

arxiv.org/abs/1004.2353v1

Physics

Condensed Matter

Materials Science

Scientific paper

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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