Results 271 to 280 of about 21,446 (309)

Dielectric Breakdown of Polyacetylene

Japanese Journal of Applied Physics, 1983
Cis-(CH) x , with lower electronic conductivity, has a higher breakdown strength than trans-(CH) x , with higher conductivity. However, the breakdown strengths of both (CH) x film isomers are much lower than those of other insulating
Katsumi Yoshino, Masaharu Terauchi, San Hyon Kim, Shigenori Hayashi, Yoshio Inuishi   +4 more
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Dielectric Breakdown in Dielectrics and Ferroelectric Ceramics

2014
Under the application of a large enough electrical field a dielectric material can respond through motion of free charge carriers, injection of mobile charge carriers from electrodes, space charge generation, and dissipation of energy in the material, all of which may contribute to the electrical failure of the material.
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Percolation and dielectric breakdown

Proceedings of 1994 4th International Conference on Properties and Applications of Dielectric Materials (ICPADM), 2002
A simple percolation model is put forward to give a qualitative analysis for intrinsic breakdown in insulating polymers. The electron's migration in polymers should be electron hopping-conduction between localized states. When the electrical field is high enough so that electron's hopping probability between localized states is increased to a threshold,
null Wu Kai, null Xie Hengkun, null Ge Jingpang   +2 more
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Thermal breakdown in dielectrics

Conference on Electrical Insulation & Dielectric Phenomena - Annual Report 1981, 1981
The basic equations governing thermal breakdown are the heat flow equation equation (1) and the equation of current continuity equation (2) where the symbols have their usual meanings. The conservation of energy is expressed by Eq. 1, and it is therefore necessary.
J. J. O'Dwyer, B. L. Beers
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Dielectric breakdown in continuous models of metal-loaded dielectrics

Physical Review B, 1992
We develop two- and three-dimensional models for breakdown of metal-loaded dielectrics based on the breakdown of random arrays of perfectly conducting cylinders and spheres embedded in a uniform dielectric and placed in a uniform external electric field. We determine the breakdown field, breakdown-path geometry, and dielectric constant as a function of
, Gyure, , Beale
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Dielectric breakdown in solids

Advances in Physics, 1958
An account is gven of the theories of intrinsic dielectric breakdown in solids, with particular emphasis on the physical process envisaged by each theory. Theories of the modified form of thermal breakdown which occurs in impulse testing are also discussed. (W.D.M.)
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THEORY OF DIELECTRIC BREAKDOWN*

Nature, 1943
A NUMBER of years ago, a general theory of electronic motion in metals was developed by F. Bloch1 and others, using the methods of quantum mechanics. Many of the results of this general theory can be applied to non-metals, and we shall see that in ionic crystals a quantitative calculation of the mean free path is possible, which is more than was ...
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Dielectric Breakdown of Polyisoxazoline

International Journal of Polymeric Materials and Polymeric Biomaterials, 2005
ABSTRACT Dielectric breakdown of polyisoxazoline was studied over the temperature range from room temperature to 150°C and thickness range 1–10 mm by applying a linearly rising voltage. It was found that at room temperature, the dielectric breakdown strength (Eb) decreased with increasing sample thickness, whereas above 50°C, Eb was almost independent ...
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Remarks on the Dielectric Breakdown

Physical Review, 1939
Seeger, R. J., Teller, E.
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The Mechanism of Breakdown of Dielectrics

Transactions of the American Institute of Electrical Engineers, 1926
In attempting to analyze various experimental data that have been obtained in researches on dielectric phenomena in high-voltage cable insulation and other dielectrics, the various existing theories of dielectric behavior have seemed inadequate. A critical study has therefore been made of these theories in an attempt to obtain a working hypothesis that
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