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in terms of the two main factors that control this property. Firstly, an increase of the cathodic polarization has an equalizing effect on the primary current distribution and so increases the throwing..., pH and temperature on the potentiodynamic cathodic polarization curves, cathodic current efficiency and throwing index, as well as the electrical conductivity of these baths. The optimum conditions......
Preparation of AI-Ca Master Alloy by Electrolysis of Chloride-Fluoride Melts邱竹贤,苏全清摘 要:<正> Al-Ca master alloy was prepared in a labora-tory electrolysis cell.The operating parameters usedwere:temperature range 680-720℃,cathodic cur-rent density 0.76-1.10 A/cm2,bath compositionin wt-% 75-85 CaCl2+2-5 KCl+2-5 CaF2.Un-der optimal conditions......
voltammetry (CV). Based on the CV results, the cathodic reduction of Cu2S occurred in one step and cathodic reductions of NiS occurred in two steps, i.e., Cu2SCu for copper reduction and NiSNi3S2 Ni for nickel... and with low levels of impurities, i.e., less than 60×10-6 sulfur, via DER at 2.5 V for 15 min. Key words: molten salt electrolysis; electro-reduction; copper extraction; copper sulfide; nickel sulfide......
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TiAlN/Cu Nanocomposite Coatings Deposited by Filtered Cathodic Arc Ion PlatingLei Chen,Zhiliang Pei,Jinquan Xiao,Jun Gong,Chao SunInstitute of Metal Research,Chinese Academy of Sciences摘 要:TiAlN/Cu nanocomposite coatings with Cu concentration of 0–1.4 at.% were deposited on the highspeed steel(HSS) substrates by filtered cathodic arc ion plating......
and copper-nickel alloy are 67.48μm/a and 38.14μm/a, respectively. Since both anodic and cathodic electrochemical reactions can be inhibited, PMA/SbBr3 belongs to complex inhibitor. PMA has the effect... of corrosion potential of copper. Compared with LiOH/Na2MoO4 inhibitor, the left shift range of polarization curves caused by PMA/SbBr3 inhibitor is wider. Both anodic and cathodic electrochemical......
based cermets were prepared by sintering method under controlled atmosphere, and their electrolysis corrosion in aluminum electrolysis at 960 ℃ was examined. Based on the studies of the microstructure and phase composition after sintering, surface morphology and composition after electrolysis, impurity content in electrolyte and cathode aluminum, the effects of BaO, Yb2O3 and CoO additive......
migration, so a lower sintering temperature was favorable for the microstructure of electrolysis. Consequently, the cathodic conductivity may be improved, but the microstructure became compact with the increase of sintering temperature. The cathodic products at different temperatures indicated that the cathodic conductivity was more important for electrolysis.关键词:......
J. Cent. South Univ. (2012) 19: 1839-1845 DOI: 10.1007/s11771-012-1217-9 Semi-active control of a vehicle suspension using magneto-rheological damper JIANG Xue-zheng(蒋学争)1, WANG Jiong(王炅)1, HU... the vehicle suspension. On-off skyhook controller and Fuzzy-Lyapunov skyhook controller (FLSC) were employed to control the input current for MR damper so as to achieve the desired damping force. Tests......
Simulated small-scale pilot heap leaching of low-grade copper sulfide ore with selective extraction of copper QIN Wen-qing(覃文庆), ZHANG Yan-sheng(张雁生), LI Wei-zhong(黎维中), WANG Jun(王 军) School...; Abstract: The bioleaching of low-grade copper sulfide ore and the selective......