Relaxation time and viscosity of fused silica glass at room temperature
@article{Vannoni2011RelaxationTA, title={Relaxation time and viscosity of fused silica glass at room temperature}, author={Maurizio Vannoni and Andrea Sordini and Giuseppe Molesini}, journal={The European Physical Journal E}, year={2011}, volume={34}, pages={1-5}, url={https://api.semanticscholar.org/CorpusID:2246471} }
Experimental investigations provide evidence of time-dependent viscous behavior, with a time constant of the order of 10 years, in fused silica glass at room temperature attributed to the action of gravity.
16 Citations
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- 2020
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- 2018
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- 2017
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- 2017
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18 References
Refractive index of Lithosil and Suprasil 312 at cryogenic temperature
- 2010
Physics, Materials Science
Measurements of the refractive index of two different Lithosil samples and a sample of Suprasil 312 at cryogenic temperature and at 293 K are reported for the spectral range from 480 nm to 894 nm.…
Long-term deformation at room temperature observed in fused silica.
- 2010
Materials Science, Physics
Cases of long-term deformation of fused silica flats are reported. The phenomenon is detected at the scale of the nanometer, and exhibits a time constant of the order of 9 years. The observed…
Nonequilibrium viscosity of glass
- 2009
Materials Science, Physics
Since glass is a nonequilibrium material, its properties depend on both composition and thermal history. While most prior studies have focused on equilibrium liquid viscosity, an accurate description…
Absolute planarity with three-flat test: an iterative approach with Zernike polynomials.
- 2008
Engineering, Physics
An iterative algorithm to analyze three-flat test data for absolute planarity measurements is presented. Using the properties of Zernike polynomial representations, results are achieved in a fast and…
Analysis of a scanning pentaprism system for measurements of large flat mirrors.
- 2007
Engineering, Physics
The optical surface of a large optical flat can be measured using an autocollimator and scanning pentaprism system. The autocollimator measures the slope difference between a point on the mirror and…
Selenium glass transition : A model based on the enthalpy landscape approach and nonequilibrium statistical mechanics
- 2007
Physics, Materials Science
Iterative algorithm for three flat test.
- 2007
Engineering, Physics
A data processing algorithm that converges to solution numerically by iteration is presented, both on synthetic interferograms and on experimental data.
Validation of absolute planarity reference plates with a liquid mirror
- 2005
Physics
The use of a simplified version of the liquid mirror approach to validate absolute planarity reference flats is described in detail. It is shown that the approach can serve the purpose, providing a…
Stable operation of a 300-m laser interferometer with sufficient sensitivity to detect gravitational-wave events within our galaxy.
- 2001
Physics
TAMA300, an interferometric gravitational-wave detector with 300-m baseline length, has been developed and operated with sufficient sensitivity to detect gravitational-wave events within our galaxy…
Flowing windowpanes: a comparison of Newtonian and Maxwell fluid models
- 2000
Physics, Engineering
Both very viscous Newtonian flow and Maxwell viscoelastic models have been used in recent publications to compute the time-scale over which glass windowpanes at ambient temperatures will flow…