The DOI matches its Crossref record; 18 of the 18 references it cites were found in a registry or an index.
Dynamics of glass-forming liquids. II. Detailed comparison of dielectric relaxation, dc-conductivity, and viscosity data
Abstract
We have studied the temperature dependence of dielectric relaxation times in terms of the peak frequency fmax(T) of dielectric loss ε″(ω) and the dc-conductivity σdc(T) of several glass-forming liquids, covering 12 decades in the peak frequency fmax and 9 decades in σdc. Although dc-conductivity samples the mobility of ionic tracers, its variation with temperature is similar to that of fmax(T). The fmax(T) and σdc(T) are analyzed using the temperature-derivative method and compared to the viscosity data η−1(T). While most liquids reveal a common Vogel–Fulcher–Tammann (VFT) behavior for fmax, σdc and η−1 in an extended temperature range T≥Tm, some liquids deviate from this behavior by displaying a crossover at T=TA to an Arrhenius regime. In these cases the quantity fmax(T) decouples from the common curves for σdc(T) and η−1(T) and attains activation energies in excess (∼40% for alcohols) of those related to translational processes. For many samples a departure from the VFT behavior occurs at lower temperatures TB<Tm which tends to retard the glass transition. The onset of this qualitative change in the temperature dependence at TB turns out to be a characteristic temperature also in other experiments.
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Cites
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Non-symmetrical dielectric relaxation behaviour arising from a simple empirical decay function
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Cited by
Glass transition of polymers in bulk, confined geometries, and near interfaces
Napolitano, S., Glynos, E., & Tito, N. B. (2017) · Reports on Progress in Physics · doi:10.1088/1361-6633/aa5284 · Cited by 420
Relaxation dynamics in plastic crystals
Brand, R., Lunkenheimer, P., & Loidl, A. (2002) · The Journal of Chemical Physics · doi:10.1063/1.1477186 · Cited by 337
Ngai, K. L., Lunkenheimer, P., León, C., Schneider, U., Brand, R., & Loidl, A. (2001) · The Journal of Chemical Physics · doi:10.1063/1.1381054 · Cited by 254
Rheology and high-pressure models for quantitative elastohydrodynamics
Bair, S. (2009) · Proceedings of the Institution of Mechanical Engineers Part J Journal of Engineering Tribology · doi:10.1243/13506501jet506 · Cited by 47
Metadata
- Authors
- Stickel, F., Fischer, E. W., & Richert, R.
- Venue
- The Journal of Chemical Physics
- Publisher
- AIP Publishing
- Published
- 1996-02-01
- Volume
- 104
- Issue
- 5
- Pages
- 2043-2055
- ISSN
- 0021-9606 (ISSN-L)
- 1089-7690
- OpenAlex
- W2057206707
- Cited by
- 522
- References
- 18
- FWCI
- 24.66
- Type
- journal article
- Language
- en
- Open access
- closed
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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