Results 191 to 200 of about 209,920 (241)

Nonlinear electrical conductivity of metallic microcontacts in an alternating electric field

Soviet Journal of Low Temperature Physics, 1983
The problem of the behavior of a point contact between normal metals in an alternating electric field with arbitrary frequency and amplitude is solved using the technique of quasiclassical energy-integrated Green's functions. The nonlinear components of the current due to the electron-phonon interaction are obtained.
A. N. Omel'yanchuk, I. G. Tuluzov
openaire   +1 more source

Electric Field Control by Nonlinear Field Dependent Conductivity Dielectrics Characterization for High Voltage Power Module Packaging

2019 IEEE International Workshop on Integrated Power Packaging (IWIPP), 2019
Accelerated aging in next-generation insulation systems for wide bandgap (WBG) power electronic modules is the most significant barrier to realizing high-voltage, high-power-density conversion devices and systems.
M. Tousi, M. Ghassemi
semanticscholar   +1 more source

Theory of nonlinear electrical conductivity via integral Boltzmann equation

Il Nuovo Cimento B, 1978
An integral transport theory for determining the distribution function of test particles, which diffuse in the presence of an external conservative force in a system of field particles, is proposed. How—for the case in which the test particles are taken to be electrons—the validity of Ohm’s law can be checked and the subsequent evaluation of electrical
V. C. Boffi, V. G. Molinari, W. Wonneberger   +2 more
openaire   +1 more source

Electrical conduction processes and high-electric-field poling in nonlinear optical polymers

SPIE Proceedings, 1996
We report on electrical conduction phenomena occurring during high electric field electrode poling of side chain (chi) (2 ) polymers. Electric current and second harmonic intensity were measured simultaneously in poling experiments performed on samples with and without an additional inorganic poly-methyl-siloxane layer.
Manfred Eich, Robert Blum, Martin Sprave
openaire   +1 more source

Nonlinear conductivity of aqueous electrolytes: Beyond the first Wien effect.

Journal of Chemical Physics
The conductivity of strong electrolytes increases under high electric fields, a nonlinear response known as the first Wien effect. Here, using molecular dynamics simulations, we show that this increase is almost suppressed in moderately concentrated ...
Hélène Berthoumieux, Vincent Démery, A. C. Maggs   +2 more
semanticscholar   +1 more source

Electrical-field induced nonlinear conductive behavior in dense zirconia ceramic

Journal of Materials Science & Technology, 2017
Abstract The effect of the applied electric field on the conductive behavior of zirconia ceramics is studied by measuring its initial current-voltage curve at various temperatures. The results show that when the field strength is higher than the threshold for flash-sintering, the curves exhibit a nonlinear behavior by having an additional current on ...
Yan Gao, Fangzhou Liu, Dianguang Liu, Jinling Liu, Yiguang Wang, Linan An   +5 more
openaire   +2 more sources

Comparison of simulations of the gas conduction in HVDC GIL by application of nonlinear conductivity model and ion-drift-diffusion model

Compel
Purpose Gas insulated systems, such as gas insulated lines (GIL), use insulating gas, mostly sulfur hexalfluoride (SF6), to enable a higher dielectric strength compared to e.g. air.
H. Hensel, Markus Clemens
semanticscholar   +1 more source

Nonlinear electrical conductivity of tin‐filled urea‐formaldehyde‐cellulose composites

Polymer Composites, 2005
AbstractThis work reports on the elaboration and characterization of composite materials prepared by compression molding of mixtures of tin powder and a commercial grade thermosetting resin of urea‐formaldehyde filled with alpha‐cellulose in powder form. The morphology of constituents and composites has been characterized by optical microscopy.
Gabriel Pinto, Abdel‐Karim Maaroufi
openaire   +1 more source

Nonlinear electrical conductivity of a fully ionized gas

IRE Transactions on Antennas and Propagation, 1962
The electrical conductivity of a fully ionized gas is analyzed based on the Fokker-Planck equation. It is found to have nonlinear characteristics if the impressed electric field is not restricted to be very small. The electrical conductivity of both dc and ac cases is investigated and the critical conditions are discussed. A convenient way of obtaining
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Sensitive Method for the Measurement of Nonlinearity of Electrical Conduction

Review of Scientific Instruments, 1964
If an ac potential V=V0 (cosωt+cos2ωt) is applied to an element whose current-voltage relationship can be expressed as I=aV+bV2+cV3+…, there will be a dc component of the current proportional to the coefficient c. Equations are developed and apparatus is described for using this fact to measure deviations from Ohm's law.
Charles E. Skov, Edgar Pearlstein
openaire   +1 more source