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Hot-pressed sintering of W/Cu functionally graded materials prepared from copper-coated tungsten powdersPei Tian1,Yi Feng1,Meng Xia1,Lan Zhao2,Cheng-Yu Cai2,Ke Liu1,Xiao-Chen Huang11. School... copper-coated tungsten powders.The effects of various sintering temperatures on relative density,microstructure,thermal conductivity,hardness and flexural strength were investigated.Scanning electron......
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PREPARATION OF NANOSTRUCTURED TUNGSTEN POWDERS曹立宏,傅磊,樊友三摘 要:<正>The preparation of nanostructured tungstenpowders has been studied by using.... Tungsten powders ofmean particle size of 40 nanometer,and specific surface areaof 3×104m2/kg have been prepared. The shape of nanostruc-tuted tungsten powders is sphere.关键词:......
Characterization of nanometer tungsten powdersLI Huiqian LIN Tao SHAO Huiping WU Chengyi GUO Zhimeng LUO Ji School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China摘 要:<正>Three types of tungsten powders were prepared by hydrogen reduction of three precursor powders at low temperature,which were......
Induction plasma spheroidization of tungsten and molybdenum powders JIANG Xian-Liang (蒋显亮)1, M.Boulos2 1. Institute of Surface and Coatings Technology, School of Materials Science and Engineering... behaviors of tungsten and molybdenum, as well as the solidification phenomena of these two powders during processing by induction plasma. 2 Experimentala. A schematic diagram of the induction plasma......
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as the type of solid film lubrication in the field of spaceflight, aviation and military affairs. Presently, some researchers used the ultrafine tungsten disulfide powders in high temperature..., the tungsten disulfide motor oil was prepared by using the ultrafine tungsten disulfide powders made in Changsha Huajing Powdery Material Technological Company. The tribological characteristics of this kind......
end of the furnace tube when interrupting the reduction experiment, the tungsten oxides in these boats were not reduced by hydrogen. The colour of powders in boats from N4 to N9 changed greatly... were reduced to metal tungsten. So, the powders in boats from N11 to N20 no more generated H2O. The H2O generated by the reduction of tungsten oxide in boats from N10 to N4 diffused into hydrogen......
Effect of rare earth element cerium on preparation of tungsten powders何文1,谭敦强1,李亚蕾1,杨欣1,陆磊2,陆德平21. School of Materials Science and Engineering, Nanchang University2. Institute of Applied Physics, Jiangxi Academy of Sciences摘 要:Tungsten powders and Ce doped powders were prepared by hydrogen reduction combined with the liquid-solid doping method......
Effect of rare earth element cerium on preparation of tungsten powders何文1,谭敦强1,李亚蕾1,杨欣1,陆磊2,陆德平21. School of Materials Science and Engineering, Nanchang University2. Institute of Applied Physics, Jiangxi Academy of Sciences摘 要:Tungsten powders and Ce doped powders were prepared by hydrogen reduction combined with the liquid-solid doping method......
