Journal ArticleDOI
Dielectric Properties of Ice and Solid D2O
Robert P. Auty,Robert H. Cole +1 more
TLDR
In this article, complex dielectric constants have been measured for ice from the melting point to −65°C and for solid D2O to −35°C, by a combination of bridge and transient methods.Abstract:
Complex dielectric constants have been measured for ice from the melting point to −65°C, and for solid D2O to −35°C, by a combination of bridge and transient methods. For both, the dispersion is described by the simple Debye formula, and the relaxation times τ by the simple rate expression τ = A exp(B/RT). For ice, A = 5.3×10−16 sec, B = 13.2 kcal/mole; and for solid D2O, A = 7.7×10−16 sec, B = 13.4 kcal/mole. The equilibrium dielectric constant for ice is 91.5 at 0°C and increases at lower temperatures; the values for solid D2O are only slightly smaller. Measures taken to minimize errors from voids in the sample and direct current conductance are discussed.read more
Citations
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Journal ArticleDOI
Interpretation of Mono-Pulse Ice Radar Soundings on Two Peruvian Glaciers
TL;DR: In this paper, a mono-pulse radar sounding experiments were carried out on the Quelccaya Ice Cap in southern Peru and the col of Huascaran in northern Peru during the 1979 and 1980 field seasons.
Journal ArticleDOI
Equilibrium theory of the kaolinite-water system at low moisture contents, with some remarks concerning adsorption hysteresis
Garrison Sposito,K. L. Babcock +1 more
TL;DR: In this article, a microscopic theory of the kaolinite-water system is presented, based upon the assumption that the clay-water interaction may be envisioned as partly hydration of the exchangeable cations and partly adsorption by the oxygen and hydroxyl surfaces.
Journal ArticleDOI
The Layered Capacitor Method for Dielectric Bridge Measurements. Data Analysis and Interpretation of Fluoride Doped ICE.
G. W. Gross,J. Johnson +1 more
TL;DR: The use of linear blocking layers allowed a semiquantitative interpretation even in cases where strong overlap of relaxation processes was encountered, and the equivalent-circuit model has a built-in source of non-uniqueness which amplifies fitting uncertainties when ice volume parameters are ederived from ¿effective¿ parameters of the layered capacitor.
Journal ArticleDOI
Study of the dielectric properties of disperse micro-crystals of ice near the melting temperature. Section I : experimental results
Journal ArticleDOI
Low temperature polarization effects in ice
TL;DR: When an initially unpolarized HF doped ice specimen is warmed at a constant rate in an applied electric field, two peaks are observed in the current as discussed by the authors, the low temperature peak occurs near 100°K and the temperature at which this peak occurs is seen to increase as the HF concentration decreases.
References
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Journal ArticleDOI
The Dielectric Polarization of Polar Liquids
TL;DR: In this paper, an extension of the Onsager theory of dielectric polarization is presented, which is applied to liquid water under the assumption of tetrahedral coordination and directed bonds between neighboring molecules.
Journal ArticleDOI
A Wide Range Capacitance‐Conductance Bridge
Robert H. Cole,Paul M. Gross +1 more
TL;DR: In this paper, the authors describe a bridge for reasonably accurate measurement by direct balance of capacitance and conductance in the frequency range 50 c/sec. to 5 cm/sec., and over most of this range is essentially direct reading in the two admission components with negligible unbalance from lead effects or guard circuits of the unknown.
Journal ArticleDOI
A Calculation of the Static Dielectric Constant of Ice
TL;DR: In this article, a calculation of the static dielectric constant of ice using only simple molecular data and with well-defined assumptions as to the possibilities of molecular movement in the crystal is presented.
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