منابع مشابه
Mechanics of Supercooled Liquids
Pure substances can often be cooled below their melting points and still remain in the liquid state. For some supercooled liquids, a further cooling slows down viscous flow greatly, but does not slow down self-diffusion as much. We formulate a continuum theory that regards viscous flow and self-diffusion as concurrent, but distinct, processes. We generalize Newton’s law of viscosity to relate s...
متن کاملnamics of supercooled liquids ?
Europhysics Letters PREPRINT Are there localized saddles behind the heterogeneous dynamics of supercooled liquids? Abstract. – We numerically study the interplay between heterogeneous dynamics and properties of negatively curved regions of the potential energy surface in a model glassy system. We find that the unstable modes of saddles and quasi-saddles undergo a localization transition close t...
متن کاملSupercooled Liquids and Glasses
Glasses are materials that are much more common in our daily life than one might naively expect. Apart from the obvious (inorganic) glasses, such as wine glasses, bottles and windows, we also have the organic (often polymeric) glasses, such as most plastic materials (bags, coatings, etc.). In the last few years also metallic glasses have come to our daily (St. Andrews) life since they are used,...
متن کاملSupercooled Liquids and Polyamorphism
We have discovered a solid, apparently amorphous phase of triphenyl phosphite to which the supercooled liquid converts, a phase distinct from both the glass and the crystal. To date, this is the clearest and best identified case of a first-order transition from a liquid to another apparently amorphous condensed phase. We discuss this phenomenon in terms of a recently formulated theory of superc...
متن کاملFrom Supercooled Liquids to RFOT
In the introductory chapter we focused on the supercooled and deeply supercooled branches in Fig. 1.1, as a way to properly introduce the phenomenon of the glassy slowdown, the fundamental notion ofmetastable glassy state, and lay the groundwork for the discussion of the Random First Order Theory of the glassy slowdown which this thesis is based upon. This discussion takes place in the present ...
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ژورنال
عنوان ژورنال: Journal of Applied Mechanics
سال: 2014
ISSN: 0021-8936,1528-9036
DOI: 10.1115/1.4028587