Strong and fragile liquids in percolation approach to the glass transition

Novikov, V. N.; Rössler, E. A.; Malinovsky, V. K.; Суровцев, Н. В.

doi:10.1209/epl/i1996-00568-7

Cited by 85 publications

(40 citation statements)

References 32 publications

(46 reference statements)

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“…The ratio T VFT /T C can be used as an estimation of the fragility, inspired by Refs. [21][22][23]. In the present study, we obtained 0.642, 0.715 and 0.821 from Model I to Model III, respectively.…”

Section: Checks Of Some Mct Predictionssupporting

confidence: 56%

Molecular dynamics investigations of glassforming binary Lennard-Jones systems with different anharmonicities

Bordat

Affouard²,

Descamps³

et al. 2006

Journal of Non-Crystalline Solids

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Section: Checks Of Some Mct Predictionssupporting

confidence: 56%

Molecular dynamics investigations of glassforming binary Lennard-Jones systems with different anharmonicities

Bordat

Affouard²,

Descamps³

et al. 2006

Journal of Non-Crystalline Solids

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“…The second, a recent variant of this scaling, is that due to Rössler and co-workers 56 in which all data are collapsed onto a single curve by introducing the above-discussed crossover temperature into the scaling. For strong liquids, the crossover temperature identified by Rössler and co-workers lies far above T g for strong liquids, but close to T g for fragile liquids.…”

Section: 52mentioning

confidence: 99%

Relaxation in glassforming liquids and amorphous solids

Angell

Ngai

McKenna

et al. 2000

Journal of Applied Physics

2,108

1,876

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The field of viscousliquid and glassysolid dynamics is reviewed by a process of posing the key questions that need to be answered, and then providing the best answers available to the authors and their advisors at this time. The subject is divided into four parts, three of them dealing with behavior in different domains of temperature with respect to the glass transition temperature, Tg,and a fourth dealing with "short time processes. " The first part tackles the high temperature regime T>Tg, in which the system is ergodic and the evolution of the viscousliquid toward the condition at Tg is in focus. The second part deals with the regime T∼Tg, where the system is nonergodic except for very long annealing times, hence has time-dependent properties (aging and annealing). The third part discusses behavior when the system is completely frozen with respect to the primary relaxation process but in which secondary processes, particularly those responsible for "superionic" conductivity, and dopart mobility in amorphous silicon, remain active. In the fourth part we focus on the behavior of the system at the crossover between the low frequency vibrational components of the molecular motion and its high frequency relaxational components, paying particular attention to very recent developments in the short time dielectric response and the high Qmechanical response. The field of viscous liquid and glassy solid dynamics is reviewed by a process of posing the key questions that need to be answered, and then providing the best answers available to the authors and their advisors at this time. The subject is divided into four parts, three of them dealing with behavior in different domains of temperature with respect to the glass transition temperature, T g , and a fourth dealing with ''short time processes.'' The first part tackles the high temperature regime TϾT g , in which the system is ergodic and the evolution of the viscous liquid toward the condition at T g is in focus. The second part deals with the regime TϳT g , where the system is nonergodic except for very long annealing times, hence has time-dependent properties ͑aging and annealing͒. The third part discusses behavior when the system is completely frozen with respect to the primary relaxation process but in which secondary processes, particularly those responsible for ''superionic'' conductivity, and dopart mobility in amorphous silicon, remain active. In the fourth part we focus on the behavior of the system at the crossover between the low frequency vibrational components of the molecular motion and its high frequency relaxational components, paying particular attention to very recent developments in the short time dielectric response and the high Q mechanical response.

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“…As a phenomenological observation, it is assumed that s 2 gb ffi s 2 cb (subscript g denotes glasses) although there is no rigorous justification for this. [8,[21][22][23] Substituting this relationship into Equation (1), namely letting T g (D), T gb , s g 2 (D) and s gb 2 replace T m (D), s c 2 (D), T mb and s cb 2 , where s g 2 (D) is the size-dependent quantity of s gb 2 , gives…”

Section: Modelmentioning

confidence: 99%

Glass Transition of Low‐Dimensional Polystyrene

Jiang

Lang

2004

Macromol. Rapid Commun.

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Summary: A unified model is developed for the finite size‐effect on the glass‐transition temperature of polymers, Tg(D), where D denotes the diameter of particles or thickness of films. In terms of this model, Tg depends on both the size and interface conditions. The predicted results are consistent with the experimental evidence for polystyrene (PS) particles and films with different interface situations.Tg(D) function of free‐standing PS films.magnified imageTg(D) function of free‐standing PS films.

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Strong and fragile liquids in percolation approach to the glass transition

Cited by 85 publications

References 32 publications

Molecular dynamics investigations of glassforming binary Lennard-Jones systems with different anharmonicities

Molecular dynamics investigations of glassforming binary Lennard-Jones systems with different anharmonicities

Relaxation in glassforming liquids and amorphous solids

Glass Transition of Low‐Dimensional Polystyrene

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