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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......
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......
,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......
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:......
Trans. Nonferrous Met. Soc. China 26(2016) 747-758 Synthesis of niobium borides by powder metallurgy methods using Nb2O5, B2O3 and Mg blends , Duygu , M. , Duman Faculty of Chemical...; accepted 21 August 2015 Abstract: Niobium boride powders having NbB, NbB2 and Nb3B4 phases in various amounts and single phase NbB powders were successfully synthesized by using powder metallurgy......
Electrochemical Study on the Change in Valency of Niobium Oxide in the MnO-SiO2-Nb2O5 SystemTan Zanlin Wei Shoukun University of Science and Technology Beijing摘 要:<正> Change in valency of Nb-oxide in MnO-SiO2-Nb2O5 system was studied with the electrochemical method using ZrO2 asthe solid electrolyte.Thermodynamic analysis has shown that the only......