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Conductivity and Dielectric Relaxation in Concentrated Aqueous Lithium Chloride Solutions
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In this article, Macedo, Bose, and Litovitz described a study of the recently recognized phenomenon of conductivity relaxation in liquid electrolytes as it is observed in the system LiCl+water.Abstract:
This paper describes a study of the recently recognized phenomenon of conductivity relaxation in liquid electrolytes as it is observed in the system LiCl+water. Advantage has been taken of the supercooling ability of 6–20m solutions in this system to reduce solution temperatures to the vicinity of −100°C and thereby to increase the relaxation time characteristic of the conductance process sufficiently to permit its study with conventional ac conductance bridges operating in the frequency range 0.2–2 000 kHz. Extensive data are presented for four solutions in the concentration range 8.3–11.9m. When the frequency‐dependent conductance and capacitance data are analyzed in the dielectric modulus notation developed by Macedo, Bose, and Litovitz, mean relaxation times for conductance are obtained which have a non‐Arrhenius temperature dependence identical to that of the dc conductivity. Earlier studies of dielectric relaxation in these solutions, carried out at room temperature and gigahertz frequencies, are re...read more
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Liquid fragility and the glass transition in water and aqueous solutions.
TL;DR: C. Angell was born in Canberra, Australia, and studied chemistry and metallurgy at the University of Melbourne, and is focusing on the annealing behavior of hyperquenched liquids and solutions, particularly denatured protein solutions, with a sideline on nanoporous network glasses as gas storage media.
Journal ArticleDOI
Electrical Relaxation in Na2O·3SiO2 Glass
TL;DR: In this article, the electrical relaxation associated with alkali diffusion in Na2O·3SiO2 glass was studied from 0.2 Hz to 700 kHz at −1° to 163°C.
Journal ArticleDOI
Mobile ion concentrations in solid electrolytes from an analysis of a.c. conductivity
Darryl P Almond,Anthony R. West +1 more
TL;DR: A relationship between the a.c. and d.c components of ionic conductivity, established for single crystal Na β-alumina, is critically examined in this article.
Journal ArticleDOI
Scaling properties of the conductivity spectra of glasses and supercooled melts
TL;DR: In this paper, the ion transport properties of glasses and supercooled melts were studied using the scaling properties of complex conductivity data, and it was shown that the frequency response of the conductivity reflecting the transport mechanism is very similar in glasses and in melts.
Journal ArticleDOI
Physical aspects of vitrification in aqueous solutions
TL;DR: Vitrification is the process by which a liquid solidifies at temperatures usually far below the normal freezing point, but without the formation of any crystalline phase as mentioned in this paper, the product is then a partially crystallized glass.
References
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Journal ArticleDOI
Die Abhängigkeit der Viscosität von der Temperatur bie unterkühlten Flüssigkeiten
G. Tammann,W. Hesse +1 more
Journal ArticleDOI
Viscous Liquids and the Glass Transition. II. Secondary Relaxations in Glasses of Rigid Molecules
G. P. Johari,Martin Goldstein +1 more
TL;DR: The dielectric loss factor and permittivity of 8-16 mol% solutions of chlorobenzene, o−dichlorobenzenes, and 1-chloronaphthalene in cis-decalin were measured by DTA as mentioned in this paper.
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