Cases of long-term deformation of fused silica glass at room temperature attributed to the action of gravity have been reported. Further experimental investigations now provide evidence of time-dependent viscous behavior, with a time constant of the order of 10 years. Data relating to a pair of fused silica reference plates are presented, showing the overall deformation occurred over the years; considerations on the pertaining viscosity with aging are also given. An account of the observed relaxation process in terms of the Kelvin-Voigt model for linear viscoelasticity is provided. © 2011 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.
CITATION STYLE
Vannoni, M., Sordini, A., & Molesini, G. (2011). Relaxation time and viscosity of fused silica glass at room temperature. European Physical Journal E, 34(9), 92. https://doi.org/10.1140/epje/i2011-11092-9
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