The glass transition in terms of Landau’s phenomenological approach

Gutzow, I.; Petroff, Boris P.

doi:10.1016/j.jnoncrysol.2004.08.079

Cited by 12 publications

(8 citation statements)

References 14 publications

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“…As announced in the Introduction, a possible candidate for this is an electrically induced glass transition, as has recently been suggested by the experimental work of Van der Kooij and co-workers [34]. This has in the past already been effectively described in terms of a Landautype theory similar to ours [62,63].…”

Section: Modelmentioning

confidence: 67%

Controlling permeation in electrically deforming liquid crystal network films: A dynamical Landau theory

et al. 2021

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Section: Modelmentioning

confidence: 67%

Controlling permeation in electrically deforming liquid crystal network films: A dynamical Landau theory

et al. 2021

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“…Vitrification manifests itself as a second-order phase transition, however its description in terms of the Landau theory is difficult as there is no clarity about the order parameter describing this transition [33,34]. Although similar to a second-order phase transformation, the glassliquid transition is a kinetically controlled phenomenon which exhibits a range of T g depending on the cooling rate with maximal T g at highest rates of cooling [31].…”

Section: Melting Of Amorphous Solidsmentioning

confidence: 99%

Viscosity and Glass Transition in Amorphous Oxides

Ojovan

2008

Advances in Condensed Matter Physics

128

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An overview is given of amorphous oxide materials viscosity and glass-liquid transition phenomena. The viscosity is a continuous function of temperature, whereas the glass-liquid transition is accompanied by explicit discontinuities in the derivative parameters such as the specific heat or thermal expansion coefficient. A compendium of viscosity models is given including recent data on viscous flow model based on network defects in which thermodynamic parameters of configurons—elementary excitations resulting from broken bonds—are found from viscosity-temperature relationships. Glass-liquid transition phenomena are described including the configuron model of glass transition which shows a reduction of Hausdorff dimension of bonds at glass-liquid transition.

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“…Practically any liquid crystallizes if the cooling rate is sufficiently slow hence there is a critical cooling rate above which a liquid can be vitrified. On cooling the viscosities of liquids gradually increase and the liquidglass transition is often regarded as a transition for practical purposes rather than a thermodynamic phase transition [3]: by general agreement it is considered that a liquid on being cooled becomes a glass when the viscosity equals 10 12 Pa⋅s (10 13 poise) or where the relaxation time is 10 2 s [3,4]. The liquidglass transition is accompanied by spectacular changes in physical properties (e.g.…”

Section: Introductionmentioning

confidence: 99%

Topologically disordered systems at the glass transition

Ojovan¹,

Lee²

2006

J. Phys.: Condens. Matter

118

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The thermodynamic approach to the viscosity and fragility of amorphous oxides was used to determine the topological characteristics of the disordered network forming systems. Instead of the disordered system of atoms we considered the congruent disordered system of interconnecting bonds. The Gibbs free energy of network breaking defects (configurons) was found based on available viscosity data. Amorphous silica and germania were used as reference disordered systems for which we found an excellent agreement of calculated and measured glass transition temperatures. We revealed that the Hausdorff dimension of the system of bonds changes from Euclidian three-dimensional below to fractal 2.55±0.05-dimensional geometry above the glass transition temperature.

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The glass transition in terms of Landau’s phenomenological approach

Cited by 12 publications

References 14 publications

Controlling permeation in electrically deforming liquid crystal network films: A dynamical Landau theory

Controlling permeation in electrically deforming liquid crystal network films: A dynamical Landau theory

Viscosity and Glass Transition in Amorphous Oxides

Topologically disordered systems at the glass transition

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