Access
To read this story in full you will need to login or make a payment (see right).
Brief Communications Arising
Nature 442, E7-E8 (3 August 2006) | doi:10.1038/nature04967; Published online 2 August 2006
There is a Letter (21 October 2004) associated with this document.
There is a Brief Communications Arising (23 November 2006) associated with this document.
Open Innovation Challenges
-
Single-cell Analysis Platform
This Challenge is looking for novel approaches to analyzing changes at a single-cell level. This is...
-
Methods to Analyze Consumer Emotions
The Seeker is looking for methods to analyze consumer emotions. This Challenge requires only a writ...
- More Challenges
- Powered by:
nature jobs
Senior Computational Scientist
- Argonne National Laboratory
- Argonne, IL, United States
Scientist / Sr. Scientist - Biopharmaceutics
- Syngene International
- Bangalore, Karnataka 560099 India
Glass behaviour: Poisson's ratio and liquid's fragility
Spyros N. Yannopoulos1 & G. P. Johari2
Abstract
Arising from: V. N. Novikov & A. P. Sokolov Nature 431, 961–963 (2004)
The lack of a reliable theory of glass physics has led to the pursuit of correlations between various glass or viscous liquid parameters, one of which is the slope m of the plot of log(viscosity) against Tg/T, extrapolated at the glass-transition temperature, Tg, also termed 'fragility'. Novikov and Sokolov1 conclude that the value of m for a liquid varies linearly with the ratio of the instantaneous bulk and shear moduli, K
/G, of its glass according to the relation m=29(K/G-0.41). Because of the obvious importance of the elastic properties of a glass, we have investigated the basis for this relation1 and find that its premise is flawed because of the unjustifiable preference for an empirical variation of m with elastic properties, and because of the selected use of glasses. When more glasses are considered in the same way, m does not seem to be linearly related to K/G.
To read this story in full you will need to login or make a payment (see right).
MORE ARTICLES LIKE THIS
These links to content published by NPG are automatically generated.
RESEARCH
Poisson's ratio and the fragility of glass-forming liquidsNature Letters to Editor (21 Oct 2004)
Supplementary InformationNature Materials Article (01 Nov 2008)
