Analysis and characterization of the transition from the Arrhenius to non-Arrhenius structural relaxation in fragile glass-forming liquids

Ikeda, Masahiro; Aniya, Masaru

doi:10.1007/s10973-018-6976-6

Cited by 11 publications

(9 citation statements)

References 44 publications

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“…As a matter of fact, the determination of T A from the discrete data points is not easy, as it depends on the amount of data points available at high temperature, [ 12,21 ] which are in general quite limited. To see the effect of this observation, in Figure 7 , some data points are obtained by extrapolation based on the theoretical expression and the available high‐temperature viscosity data [ 45 ] of Ca 2 K 3 (NO 3 ) 7 .…”

Section: Resultsmentioning

confidence: 99%

“…Motivated by the aforementioned notions and studies, the non‐Arrhenius structural relaxation with the AC behavior was examined in terms of the BSCNF model. As the results, it was revealed [ 20,21 ] that the BSCNF model describes the AC phenomenon. Figure 1 shows the temperature dependence of the time constant τ of the structural relaxation of 2‐methyl tetrahydrofuran (MTHF), where the solid curve is described by Equation (1) and the experimental data used are taken from the literature.…”

Section: Ac Phenomena In the Structural Relaxation And The Electricalmentioning

confidence: 99%

“…This suggests that the cooperativity onset occurs at such temperature. [ 20,21 ] Interestingly, the analytical expression of T x suggests a possible link of the high‐temperature liquid property with the low‐temperature liquid property. [ 21 ]…”

Section: Introductionmentioning

confidence: 99%

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Arrhenius Crossover Phenomena and Ionic Conductivity in Ionic Glass‐Forming Liquids

Aniya

Ikeda

2020

Physica Status Solidi (b)

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Herein, the relation between the Arrhenius crossover (AC) behaviors in the structural relaxation and the electrical conductivity relaxation is explored in terms of the Bond Strength–Coordination Number Fluctuation (BSCNF) model developed by the authors. For the ionic glass‐forming liquids and solution examined, Ca2K3(NO3)7, Ca2Rb3(NO3)7, ZBLAN20 and (LiCl)0.16(H2O)0.84, the electric conductivity at high temperature resembles the behavior of the high‐temperature structural relaxation. This mutual relationship suggests a similar origin of the AC behaviors for both, structural and electrical relaxation. The difference between them is reflected in the different temperatures that demarcate the AC behaviors. The implication of this difference to the occurrence of the high ionic conduction via the decoupling mechanism is discussed in terms of the BSCNF model and the fractional Stokes–Einstein law.

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Section: Resultsmentioning

confidence: 99%

Section: Ac Phenomena In the Structural Relaxation And The Electricalmentioning

confidence: 99%

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Arrhenius Crossover Phenomena and Ionic Conductivity in Ionic Glass‐Forming Liquids

Aniya

Ikeda

2020

Physica Status Solidi (b)

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“…Here one should mention that temperature dependence of viscosity in the high-temperature region is different from that near T m [ 89 , 90 ]. As predicted by Equations (3) and (4) the square root of temperature term, being marginal at low temperature, starts to dominate over the exponential decay term at high temperature leading to rise of viscosity in the supercritical liquid region.…”

Section: Liquid Fragility Conceptmentioning

confidence: 99%

Structural Changes in Metallic Glass-Forming Liquids on Cooling and Subsequent Vitrification in Relationship with Their Properties

Louzguine‐Luzgin

2022

Materials

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The present review is related to the studies of structural changes observed in metallic glass-forming liquids on cooling and subsequent vitrification in terms of radial distribution function and its analogues. These structural changes are discussed in relationship with liquid’s properties, especially the relaxation time and viscosity. These changes are found to be directly responsible for liquid fragility: deviation of the temperature dependence of viscosity of a supercooled liquid from the Arrhenius equation through modification of the activation energy for viscous flow. Further studies of this phenomenon are necessary to provide direct mathematical correlation between the atomic structure and properties.

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“…The inverse temperature -logarithmic viscosity plot [25,26] with some limitations [27,28] is a very useful illustration of the difference between so-called "strong" and "fragile" liquids [ 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

An atomistic study of the structural changes in a Zr–Cu–Ni–Al glass-forming liquid on vitrification monitored in-situ by X-ray diffraction and molecular dynamics simulation

et al. 2020

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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Analysis and characterization of the transition from the Arrhenius to non-Arrhenius structural relaxation in fragile glass-forming liquids

Cited by 11 publications

References 44 publications

Arrhenius Crossover Phenomena and Ionic Conductivity in Ionic Glass‐Forming Liquids

Arrhenius Crossover Phenomena and Ionic Conductivity in Ionic Glass‐Forming Liquids

Structural Changes in Metallic Glass-Forming Liquids on Cooling and Subsequent Vitrification in Relationship with Their Properties

An atomistic study of the structural changes in a Zr–Cu–Ni–Al glass-forming liquid on vitrification monitored in-situ by X-ray diffraction and molecular dynamics simulation

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