Glass transition: Difference between revisions
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#[http://dx.doi.org/10.1021/j100596a018 C. A. Angell and J. C. Tucker "Heat capacities and fusion entropies of the tetrahydrates of calcium nitrate, cadmium nitrate, and magnesium acetate. Concordance of calorimetric and relaxational ideal glass transition temperatures", Journal of Physical Chemistry '''78''' pp. 278 - 281 (1974)] | #[http://dx.doi.org/10.1021/j100596a018 C. A. Angell and J. C. Tucker "Heat capacities and fusion entropies of the tetrahydrates of calcium nitrate, cadmium nitrate, and magnesium acetate. Concordance of calorimetric and relaxational ideal glass transition temperatures", Journal of Physical Chemistry '''78''' pp. 278 - 281 (1974)] | ||
#[http://dx.doi.org/10.1063/1.2738471 Prabhat K. Gupta and John C. Mauro "The laboratory glass transition", Journal of Chemical Physics '''126''' 224504 (2007)] | #[http://dx.doi.org/10.1063/1.2738471 Prabhat K. Gupta and John C. Mauro "The laboratory glass transition", Journal of Chemical Physics '''126''' 224504 (2007)] | ||
#[http://dx.doi.org/10.1146/annurev.physchem.58.032806.104653 Vassiliy Lubchenko and Peter G. Wolynes "Theory of Structural Glasses and Supercooled Liquids", Annual Review of Physical Chemistry '''58''' pp. 235-266 (2007)] | |||
[[category: Non-equilibrium thermodynamics]] | [[category: Non-equilibrium thermodynamics]] | ||
Revision as of 12:20, 29 February 2008
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In the laboratory the glass transition is not a sharp transition; its properties change smoothly across Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle T_g} .
- Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle T_g} increases with a decrease in the observation time, Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \tau_{\rm obs}} .
- Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \Delta H =0}
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Ideal glass transition temperature
See Ref 1.
Observation time
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Intrinsic average structural relaxation time
See also
References
- C. A. Angell and J. C. Tucker "Heat capacities and fusion entropies of the tetrahydrates of calcium nitrate, cadmium nitrate, and magnesium acetate. Concordance of calorimetric and relaxational ideal glass transition temperatures", Journal of Physical Chemistry 78 pp. 278 - 281 (1974)
- Prabhat K. Gupta and John C. Mauro "The laboratory glass transition", Journal of Chemical Physics 126 224504 (2007)
- Vassiliy Lubchenko and Peter G. Wolynes "Theory of Structural Glasses and Supercooled Liquids", Annual Review of Physical Chemistry 58 pp. 235-266 (2007)