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Sulfuric acid leaching of low-grade refractory tantalum–niobium and associated rare earths minerals in Panxi area of ChinaBiao Wu,He Shang,Jian-Kang WenNational Engineering Laboratory of Biohydrometallurgy,General Research Institute for Nonferrous Metals摘 要:By mineral liberation analyzer(MLA) automated quantitative system, the niobium–tantalum ore......
Electrochemical Behavior of Niobium Electrodeposited 316 Stainless Steel Bipolar Plate for PEMFC in Choline Chloride Based Ionic Liquids曹彩红,梁成浩,HUANG NaibaoTransportation Equipment and Ocean Engineering College, Dalian Maritime University摘 要:Niobium was electrodeposited on 316 stainless steel bipolar plates of a fuel cell in water and air-stable choline......
electrolyte for Li-ion battery and double-layer capacitor LIU Ping, LI Fan-qun, LI Jie, LU Hai, ZHANG Zhi-an, LAI Yan-qing (School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: The compatibilities between LiODFB/TEABF4-based electrolytes with blend solvent EC+PC+DMC and Li-ion battery or double-layer capacitor were investigated. The results show......
Photoelectrochemical Performance of Nb-doped TiO2 Nanoparticles Fabricated by Hydrothermal Treatment of Titanate Nanotubes in Niobium Oxalate Aqueous SolutionLizhen Long1,2,Liangpeng Wu1,Xu...="ChDivSummary">Nb-doped TiO2 nanoparticles were prepared by hydrothermal treatment of titanate nanotubes in niobium oxalate aqueous solution.The effect of Nb doping and rutile content......
aggravates the inhomogeneity of corrosion structure and results in low specific capacity. Key words: aluminum foil; microelement; corrosion; microstructure; electrolytic capacitor 借助电化学腐蚀的方法大幅度提高...析 Fig.4 Analysis of surface corrosion structure of aluminum foil for low voltage electrolytic capacitor 铝箔表面晶体缺陷是腐蚀过程中产生腐蚀孔的有利位置. 人们熟知, 冷轧铝箔的晶体缺陷密度比退火铝箔至少高百倍以上, 有时甚至会超过百万倍[12], 因此冷轧铝箔的缺陷可造成表面大量的孔坑......
,Jiangsu University, Zhenjiang 212013, China) Abstract:The relationship between composition and the electric mechanical properties for La2O3-doped lead niobium stibium zirconate titanate(La2O3-doped... composition on the electric machine properties of phase coexistent La2O3-doped PNSZT piezoelectric ceramics was analyzed and discussed. Key words:ceramics; La2O3; lead niobium stibium zirconate titanate......
, University of Science and Technology Beijing, Beijing 100083, China Received 1 August 2012; accepted 15 October 2013 Abstract: The Al foil for high voltage Al electrolytic capacitor usage was immersed... capacitor 1 Introduction Electrochemical etching and forming are key techniques in fabricating Al electrolytic capacitor foil electrode with high special capacitance. The electric capacitance (C) of Al......
Extraction of niobium, yttrium, and cerium from a low-grade niobium-bearing ore by roasting(NH4)2SO4-Na2SO4-H2SO4 systemWen-Cheng Gao,Jian-Kang Wen,Biao Wu,He ShangNational Engineering Laboratory of Biohydrometallurgy,General Research Institute for Nonferrous Metals摘 要:A novel process of extracting niobium, yttrium,and cerium from a low-grade niobium......
University, Changsha 410083, China; 3. Special Steel Branch, Baosteel Co.,Ltd., Shanghai 200940, China) Abstract: A MoSi2 coating on C-103 niobium alloy was prepared by packing cementation... oxidation circumstance, the dense amorphous glass scale is formed on the coating, which prevents the process of the oxygen diffusion to inner layer. Key words: niobium alloy; pack cementation; silicide......
Effect of Rare Earths on Precipitation Kinetics of Niobium Carbide in Microalloyed Steel叶文,刘勇华,林勤,陈宁,郭英摘 要:ＥｆｅｃｔｏｆＲａｒｅＥａｒｔｈｓｏｎＰｒｅｃｉｐｉｔａｔｉｏｎＫｉｎｅｔｉｃｓｏｆＮｉｏｂｉｕｍＣａｒｂｉｄｅｉｎＭｉｃｒｏａｌｏｙｅｄＳｔｅｌＹｅＷｅｎ(叶文),ＬｉｕＹｏｎｇｈｕａ(刘勇华),ＬｉｎＱｉｎ(林勤),ＣｈｅｎＮｉｎｇ(陈宁)(Ｄｅ...关键词:......
