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CRYSTALLIZATION OF SODIUM TUNGSTEN BRONZE USING ELECTROLYSIS WITHREVERSE CURRENT＋Huang Huan1; Yang Songqing1; Tang Shu2(1. Institute of Metallurgical Physicochemistry and Materials, Central South... tungsten bronze (Na_xWO_3) crystals were prepared from a molten mixture of sodium tungstate (Na_2WO_4 ) and tungstic trioxide (WO_3) at 800℃. Crystal structure, lattice parameter, and sodium content......
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Trans. Nonferrous Met. Soc. China 23(2013) 1789-1796 Solution chemistry and utilization of alkyl hydroxamic acid in flotation of fine cassiterite Pei-pei WANG1, Wen-qing QIN1, Liu-yi REN1, Qian WEI1... collector were investigated. Results show that the alkyl hydroxamic acid is able to float fine cassiterite very well at relatively alkaline conditions, and the pH range of better flotability broadens......
Institute of Technology, 2010, 30(11): 1369-1373. [8] LUO Rong-mei, HUANG De-wu, YANG Ming-chuan, et al. Penetrating performance and "self-sharpening" behavior of fine-grained tungsten heavy alloy rod...;90W-Ni-Fe合金原始形貌及钨晶粒尺寸分布 Fig. 1 Original microstructure of 90W-Ni-Fe alloy(a) and tungsten grain size distribution(b) 将试样加工成直径4 mm,高度4 mm 的圆柱,采用直径15 mm的分离式霍普金森杆(SHPB)系统进行冲击测试,设备示意图如图2所示,将试样固定在入射杆......
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J. Cent. South Univ. (2017) 24: 1537-1543 DOI: 10.1007/s11771-017-3558-x Optimization on selenium and arsenic conversion from copper anode slime by low-temperature alkali fusion process GUO Xue-yi... selenium and arsenic in copper anode slime (CAS) by low-temperature alkali fusion process. Central composite design was employed to optimize the effective parameters, in which NaOH/CAS mass ratio, fusion......
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Characterization and in-situ formation mechanism of tungsten carbide reinforced Fe-based alloy coating by plasma claddingMi-qi Wang,Ze-hua Zhou,Lin-tao Wu,Ying Ding,Ze-hua WangCollege of mechanics... of the WC phase in a Fe-based alloy coating. The in-situ formation mechanism during the cladding process is discussed in detail. The results reveal that fine and obtuse WC particles were successfully......
Ultrasonic vibration assisted tungsten inert gas welding of dissimilar magnesium alloysFangzhou Yang1,2,Jie Zhou1,Rongrong Ding11. College of Materials Science and Engineering,Chongqing University2... by the UVA treatment with an optimal ultrasonic power of 1.0 kW.In addition, Mg17Al12 precipitation phases are fine and uniformly distributed in the whole fusion zone of weldment. Micro-hardness of fusion......
Effect of activating flux on arc shape and arc voltage in tungsten inert gas welding LI Qing-ming(李清明), WANG Xin-hong(王新洪), ZOU Zeng-da(邹增大), WU Jun(吴 军) School of Materials Science.... The experimental results indicate that the SiO2 flux can increase the arc voltage, while TiO2 has no this effect on arc voltage. Compared with conventional tungsten inert gas welding (C-TIG), it is found......
