Relaxation time and viscosity of fused silica glass at room temperature
Authors: Vannoni M., Sordini A., Molesini G.
Autors Affiliation: CNR – Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze
Abstract: 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.
Journal/Review: EUROPEAN PHYSICAL JOURNAL E
Volume: 34 (9) Pages from: 92 to: 92
KeyWords: Deformation; Glass; Relaxation processes; Viscosity, Experimental investigations; Kelvin Voigt model; Linear viscoelasticity; Long-term deformation; Reference plate; Room temperature; Time constants; Time-dependent, Fused silicaDOI: 10.1140/epje/i2011-11092-9Citations: 10data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2020-09-13References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here