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Journal Articles Journal of Applied Crystallography Year : 2007

Density fluctuations in oxide glasses investigated by small-angle X-ray scattering

Abstract

The structure of glasses is characterized by the existence of density and composition fluctuations on the nanometre scale. We present three examples of the use of small-angle X-ray scattering to get information about these density fluctuations. The thermal history and OH content were observed to have a huge influence. The static compressibility decreases when the OH content or fictive temperature increase. We showed that temperature scanning small-angle X-ray scattering can provide an accurate description of the position, width and shape of the glass transition.

Dates and versions

hal-00175448 , version 1 (28-09-2007)

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Claire Levelut, Rozenn Le Parc, Annelise Faivre, Ralf Brüning, Bernard Champagnon, et al.. Density fluctuations in oxide glasses investigated by small-angle X-ray scattering. Journal of Applied Crystallography, 2007, 40 (Suppl. 1), pp.S512-S516. ⟨10.1107/S0021889807000507⟩. ⟨hal-00175448⟩
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