Computer Simulations of Freezing and Supercooled Liquids
نویسندگان
چکیده
منابع مشابه
Computer Simulations of Supercooled Liquids and Glasses
After a brief introduction to the dynamics of supercooled liquids, we discuss some of the advantages and drawbacks of computer simulations of such systems. Subsequently we present the results of computer simulations in which the dynamics of a fragile glass former, a binary Lennard-Jones system, is compared to the one of a strong glass former, SiO2. This comparison gives evidence that the reason...
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 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 کاملMechanics 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...
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ژورنال
عنوان ژورنال: Annual Review of Physical Chemistry
سال: 1980
ISSN: 0066-426X,1545-1593
DOI: 10.1146/annurev.pc.31.100180.002423