Relaxation time and viscosity of fused silica glass at room temperature

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 fuse...

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Bibliographic Details
Published in:The European physical journal. E, Soft matter and biological physics Soft matter and biological physics, 2011-09, Vol.34 (9), p.92-92, Article 92
Main Authors: Vannoni, M., Sordini, A., Molesini, G.
Format: Article
Language:English
Subjects:
Biological and Medical Physics
Biophysics
Complex Fluids and Microfluidics
Complex Systems
Nanotechnology
Physics
Physics and Astronomy
Polymer Sciences
Regular Article
Soft and Granular Matter
Surfaces and Interfaces
Thin Films
Topical Issue on the Physics of Glasses
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Summary: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.
ISSN:1292-8941
1292-895X
DOI:10.1140/epje/i2011-11092-9