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Formation of passivation film during pyrrhotite bioleached by pure L. ferriphilum and mixed culture of L. ferriphilum and A. caldusGU Guo-hua(顾帼华)1, YANG Hui-sha(杨慧沙)1, HU Ke-ting(胡可婷)1, WANG Chong... and A. caldus at the 3rd day. But, the accumulated ferric ions and high pH value produced by bioleaching process can give rise to the rapid formation of jarosite, which is the primary passivation film......
Cerium-tannic acid passivation treatment on galvanized steelLIU Guangminga, YU Feib, YANG Liua, TIAN Jihonga, and DU Nana a Key Laboratory of Nondestructive Testing (Nanchang Hangkong University...="ChDivSummary">A novel cerium-tannic acid passivation treatment was performed on galvanized steel. The corrosion resistance of cerium-tannic passivated samples was tested by dropping test with 0.5 wt.% CuSO4......
is obviously hindered. This may mainly attribute to the catalytic effect of arsenopyrite on the thiosulfate decomposition and the formation of passivation layer on the gold foil surface. The passivation... leaching; thiosulfate; arsenopyrite; passivation 1 Introduction Thiosulfate has shown considerable promise as an alternative non-cyanide lixiviant due to the increasing awareness of environment [1......
Passivation method of 317L stainless steel used in medicineLin Zhang, Yinshun Wu, Bei Cao, and Baofeng DingMaterials Science and Engineering School, University of Science & Technology of Beijing, Beijing 100083, China摘 要:<正>The electrochemical performance of 317L stainless steel used in medicine under different conditions of passivation......
Surface Passivation Performance of Atomic-Layer-Deposited Al2O3 on p-type Silicon SubstratesYanghui Liu,Liqiang Zhu,Liqiang Guo,Hongliang Zhang,Hui XiaoNingbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences摘 要:Surface passivation performances of Al2O3 layers deposited on p-type Czochralski Si wafers by atomic layer......
Effect of temperature on the passivation behavior of steel rebarShan-meng Chen,Bei Cao,Yin-shun Wu,Ke MaSchool of Materials Science and Engineering,University of Science and Technology Beijing摘 要:Steel rebar normally forms an oxide or rusty skin before it is embedded into concrete and the passivation properties of this skin will be heavily influenced......
is largely attributed to the addition of Cr, which can assist in forming an inert film on the corroding surface. To maximize the corrosion-resistant ability of Cr, a thorough study dealing with the passivation... of water molecules onto Cr terraces in acid solutions are investigated using DFT methods.Different models with various surface conditions are applied. Passivation is found to begin in the active region......
J. Cent. South Univ. (2018) 25: 754-763 DOI: https://doi.org/10.1007/s11771-018-3780-1 Effect of additives on anode passivation in direct electrolysis process of copper–nickel based alloy scraps LI... and Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract: Effects of nickel component, thiourea, glue and chloride ions and their interactions on the passivation of copper–nickel based......
Surface Passivation of Nanocrystalline Silicon Powder Derived from Cryomilling王志浩1,HUANG Zhifeng1,陈斐1,2,SHEN Qiang1,ZHANG Lianmeng1,21. State Key Lab of Advanced Technology for Materials Synthesis..." name="ChDivSummary">The surface passivation mechanism of nanocrystalline silicon powder was studied. The liquid nitrogen/argon was used as the medium to prepare the nanocrystalline silicon powder......