%0 Journal Article
%T Characterization of the glass transition in vitreous silica by temperature scanning small-angle X-ray scattering
%+ Physics Department
%+ Laboratoire des colloïdes, verres et nanomatériaux (LCVN)
%+ Laboratoire de thermodynamique et physico-chimie métallurgiques (LTPCM)
%+ Laboratoire de Cristallographie
%A Brüning, Ralf
%A Levelut, Claire
%A Faivre, Annelise
%A Le Parc, Rozenn
%A Simon, Jean-Paul
%A Bley, Françoise
%A Hazemann, Jean-Louis
%Z EurophysicsLetters, in press
%< avec comité de lecture
%@ 0295-5075
%J EPL - Europhysics Letters
%I European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing
%V 70
%P 211
%8 2005
%D 2005
%Z cond-mat/0503439
%K small-angle scattering
%K silica
%K Glass
%K Glass transition
%Z pacs: 64.70.Pf (Glass transition) ; 42.70.Ce (Glasses, quartz); 61.10.Eq (X-ray scattering (including small-angle scattering))
%Z Physics [physics]/Condensed Matter [cond-mat]/Disordered Systems and Neural Networks [cond-mat.dis-nn]Journal articles
%X The temperature dependence of the x-ray scattering in the region below the first sharp diffraction peak was measured for silica glasses with low and high OH content (GE-124 and Corning 7980). Data were obtained upon scanning the temperature at 10, 40 and 80 K/min between 400 K and 1820 K. The measurements resolve, for the first time, the hysteresis between heating and cooling through the glass transition for silica glass, and the data have a better signal to noise ratio than previous light scattering and differential thermal analysis data. For the glass with the higher hydroxyl concentration the glass transition is broader and at a lower temperature. Fits of the data to the Adam-Gibbs-Fulcher equation provide updated kinetic parameters for this very strong glass. The temperature derivative of the observed X-ray scattering matches that of light scattering to within 14%.
%G English
%2 https://hal.science/hal-00004494/document
%2 https://hal.science/hal-00004494/file/bruening_rev2.pdf
%L hal-00004494
%U https://hal.science/hal-00004494
%~ UGA
%~ CNRS
%~ UNIV-MONTP2
%~ INPG
%~ LCVN
%~ UNIV-MONTPELLIER
%~ UM1-UM2