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Effects of Current Density on the Microstructure and the Corrosion Resistance of Alumina Coatings Embedded with SiC Nano-particles Produced by Micro-arc OxidationYue Yang 1) and Yaohui Liu 2) 1) Key...-arc oxidation (MAO),Al2O3 coatings at different current densities (5,7 and 10 A/dm 2) were produced on aluminum alloys by adding SiC nano-particles into electrolyte during MAO process.The morphology......
improved after being aged with current at a proper temperature. The electrical conductivity increases approximately linearly with increasing current density while the hardness remains constant. The microstructure observation reveals that a much higher density of dislocations and nanosized Cr precipitates appear after the imposition of current, which contributes to the higher electrical conductivity......
J. Cent. South Univ. Technol. (2011) 18: 690-696 DOI: 10.1007/s11771-011-0749-8 Optimal design of auxiliary-teeth to solve circulation current reduction of permanent magnet linear synchronous motor... force (EMF) and impedance produced, unbalanced current is generated. The circulating current, which is caused by a decrease in the thrust, is generated by the unbalanced current. The optimal design......
current(DC) and pulse current(PC) jet-electrodeposition. The influences of current density and jet velocity on the surface morphology, microstructure and preferred orientation of the coatings obtained were investigated by SEM, TEM and XRD. It is found that the current density strongly affects the microstructure of the nickel coating. An increase of the DC current density results in a slight......
of "equivalent current density"was proposed for evaluating the inhomogeneous electromagnetic pinch force, and themono-component removal efficiency and the overall removal efficiency of inclusionwere formulated... phenomenon. Under usual condition, a re-moval efficiency of 52% for 10μm inclusion or more than 92% for 20μm inclusioncan be achieved by imposing a current density of 3× 106A/m2 in a fiat pipe. Key words......
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by the fact that the eddy current density in sheet and coil in the position near the inner radius of coil is larger than that in the other positions. fy, max for the flat coil is larger than that for the long coil or the coil with wedge shape section. This also correlates with the distribution of eddy current of coil and sheet. Fig.4 Distributions of electromagnetic force density for single-turn coil......
morphologies.The leakage current density of STO/LNO/BST/STO thin film was decreased by one order of magnitude and breakdown strength of STO/LNO/BST/STO thin film was enhanced from 0.72 to 1.26 MV...Leakage current characteristics of SrTiO3/LaNiO3/Ba0.67Sr0.33TiO3/SrTiO3 heterostructure thin filmsYi Zhang1,Xiao-Yang Chen1,Bin Xie1,Zhi Wang1,Qiao He1,Hang Ji1,Tao-Lan Mo1,Ping Yu11. College......
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