Study of the air-earth electrical current density in Athens

1991 ◽  
Vol 136 (2-3) ◽  
pp. 217-233 ◽  
Author(s):  
Dimitris A. Retalis
Keyword(s):  
Current Density ◽  
Electrical Current ◽  
Electrical Current Density

Application of near-field scanning microwave microprobe to electrical current density mapping

2005 ◽  
Vol 86 (23) ◽  
pp. 234101 ◽  
Author(s):  
Roberto S. Aga ◽  
Xiang Wang ◽  
Jonathan Dizon ◽  
Jesse Noffsinger ◽  
Judy Z. Wu
Keyword(s):  
Current Density ◽  
Near Field ◽  
Electrical Current ◽  
Density Mapping ◽  
Near Field Scanning ◽  
Electrical Current Density

Fabrication of WC and WC(Co) Codeposited Nickel Composite Coating by Electroplating Method for the Replacement of Chromium Coating

2008 ◽  
Vol 569 ◽  
pp. 225-228 ◽  
Author(s):  
Dae Geun Kim ◽  
Jae Ho Lee
Keyword(s):  
Particle Size ◽  
Composite Coating ◽  
Current Density ◽  
Adsorption Mechanism ◽  
Electrical Current ◽  
Chromium Coating ◽  
Adsorption Rate ◽  
Hydrodynamic Conditions ◽  
Strong Adsorption ◽  
Electrical Current Density

The codeposition of fine WC and Co coated WC particles from nickel Watt’s bath has been investigated. Electroplating of Ni/WC and Ni/WC(Co) composites coating were carried out at different current density with variation of particle size. The effect of hydrodynamic conditions of the codeposition of Ni/WC bath has been investigated. The Guglielmi adsorption mechanism is applied to the electroplating of the fine WC and WC(Co) in Ni matrix. The adsorption rate of determination step is controlled by the transferal process of loose adsorption to strong adsorption. The embedded WC concentration can be increased both by increasing electrical current density and additional WC concentration in the bath.

Tribological Behavior at Dry Sliding by Electric Current of Cu-Cr-S Alloy after Equal Channel Angular Pressing

2016 ◽  
Vol 721 ◽  
pp. 430-435 ◽  
Author(s):  
Lembit Kommel
Keyword(s):  
Electrical Conductivity ◽  
Wear Rate ◽  
Equal Channel Angular Pressing ◽  
Wear Mechanism ◽  
Current Density ◽  
Thermomechanical Processing ◽  
Energy Dispersive Spectrometer ◽  
Electrical Current ◽  
Angular Pressing ◽  
Electrical Current Density

The wear tests of ultrafine-grained Cu-0.68Cr-0.02S energy alloy after equal channel angular pressing followed heat treatment were carried out in alloy-graphite sliding pair system without lubricant at different contact electrical current density. The sutable microstructure, mechanical properties and electrical conductivity of severely deformed alloy have been formed on the samples with different levels of parameters of thermomechanical processing. The microstructure and wear surfaces of the samples have been studied using optical microscope and field emission scanning electron microscope equipped with energy dispersive spectrometer. The results illustrated that the mass loss at wear, wear rate and wear mechanism depend on microstructure, hardness and electrical conductivity of test materials as well as normal pressure stress and electrical current density on the contact surface. The mechanical and physical properties of alloy, testing parameters and their influence on the wear rate as well as wear mechanism are analyzed.

scholarly journals THE ELECTRICAL CURRENT DENSITY VECTOR IN THE INNER PENUMBRA OF A SUNSPOT

2010 ◽  
Vol 721 (1) ◽  
pp. L58-L61 ◽  
Author(s):  
K. G. Puschmann ◽  
B. Ruiz Cobo ◽  
V. Martínez Pillet
Keyword(s):  
Current Density ◽  
Electrical Current ◽  
Current Density Vector ◽  
Density Vector ◽  
Electrical Current Density
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