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
Dielectric Relaxation of Ice in Gelatin-Water Mixtures.
TL;DR: Broadband dielectric spectroscopy measurements were performed on partially crystallized gelatin-water mixtures with gelatin concentrations of 1-5 wt % to study the dynamics of ice, and results suggest that a higher gel network density affects the temperature dependence of τice.
Journal ArticleDOI
EPR of Ag° site conversion in gamma-irradiated frozen AgNO3 ices
B.L. Bales,Larry Kevan +1 more
TL;DR: In this paper, the site interconversion which occurs by rotation of water dipoles due to removal of the electric field of Ag + is studied by EPR, and it is shown that the rotation of dipoles can be a sign of magnetically distinct sites due to different orientations of the dipoles.
Journal ArticleDOI
Dipole relaxation in caf2 doped with naf.
TL;DR: In this paper, the addition of sodium fluoride to polycrystalline CaF2 caused a loss peak at higher frequencies, for the same temperature, than other loss peaks reported.
Journal ArticleDOI
Specific feature of dielectric behavior of water adsorbed on Ag2O surface
Yasushige Kuroda,Taisuke Watanabe,Yuzo Yoshikawa,Ryotaro Kumashiro,Hideaki Hamano,Mahiko Nagao +5 more
TL;DR: In this paper, the dielectric behavior of Ag2O samples with different amounts of adsorbed H2O was investigated in the temperature range from 308 to 200 K and in the frequency region from 0.1 Hz to 5 MHz.
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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