Results 241 to 250 of about 201,100 (277)

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

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

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

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

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
openaire   +1 more source

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

Propagation of nonlinear capillaary waves in an electrically conducting liquid

Journal of Mathematical Sciences, 1994
The article deals with the propagation of periodic capillary waves with finite amplitude on the surface of an electrically conducting liquid subjected to the effect of a magnetic field. It is shown that the evolution of wave packets is described by perturbed nonlinear Schrodinger equations.
I. T. Selezov, S. V. Korsunskii
openaire   +1 more source

Nonlinear Electrical Conductivity of Superconducting Films below the Transition Temperature

Physical Review B, 1971
The Langevin equation for the superconducting order parameter above the transition temperature ${T}_{c}$ proposed by Schmid is modified to calculate the nonlinear excess conductivity ${\ensuremath{\sigma}}^{\ensuremath{'}}(T,E)$ slightly below ${T}_{c}$.
Koji Kajimura, Nobuo Mikoshiba, Kunihiko Yamaji   +2 more
openaire   +1 more source