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Guo-liang, DUAN Li-hui (School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China) Abstract: In vacuum environment, the dense fiber-structured molybdenum-copper... of porosity, Mo-Cu composite with different molybdenum contents are obtained. The Mo-Cu composites have dense and homogeneous structure with obvious fibrous character by infiltration. The relative......
and holding pressure, lengthening the holding time and adding metal Mg are the effective measures to improve infiltration process.Key words:counter-gravity infiltration casting; hollow ball; void...保压压力,延长保压时间以及添加金属Mg等均是改善渗流效果的有效手段.关键词:反重力渗流铸造；空心球；空隙度；充型压力Preparation of Al2O3k/Al materials by counter-gravity infiltration castingWANG Hui, ZHOU Xiangyang, LI Jie, LIU Hongzhuan, YANG Tao(School......
that in vacuum the initial carbothermic reduction reaction temperature reduces compared with that under normal pressure, and the preferential order of products is Al4O4C, Al4C3, Al2OC, Al2O and Al. Experiment... in the carbothermic reaction, and then Al4C3 is formed in lower system pressure or at higher temperature. Key words: alumina; carbothermic reduction; vacuum; aluminum 1 Introduction Aluminum is currently......
Effect of vacuum heat treatment on microstructure and microhardness of cold sprayed Cu-4Cr-2Nb alloy coating LI Wen-ya(李文亚), GUO Xue-ping(郭学平), L. DEMBINSKI, LIAO Han-lin(廖汉林), C.CODDET LERMPS, Université de Technologie de Belfort-Montbéliard, Site de Sévenans, 90010 Belfort Cedex, France Received 10 April 2006; accepted 25 April 2006 Abstract: The effect of vacuum heat......
. After such liquid droplets solidified, a higher inner pressure could exist in the particle, which was in favor of the stability of metastable phases[14]. And when the dragging rates of large vacuum... Preparation of nanometer δ- and β-bismuth trioxide by vacuum vapor-phase oxidation HU Han-xiang(胡汉祥)1, 2, QIU Ke-qiang(丘克强)1, XU Guo-fu(徐国富)3 1. School of Chemistry and Chemical Engineering......
of the pressure leaching reaction, the autoclave was cooled immediately and depressurized. The slurry was then vacuum filtered, and the residue was washed by a small quantity of boiling water. The volumes... Pressure leaching technique of smelter dust with high-copper and high-arsenic XU Zhi-feng(徐志峰), LI Qiang(李 强), NIE Hua-ping(聂华平) School of Materials and Chemical Engineering, Jiangxi......
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:(38vol% Si Cp + 2vol% Al2O3f)/2024 Al composites were fabricated by pressure infiltration. Graphite powder was introduced as a forming filler in preform...Effect of graphite powder as a forming filler on the mechanical properties of SiCp/Al composites by pressure infiltrationWei Cui1,Hui Xu1,Jian-hao Chen1,Shu-bin Ren1,Xin-bo He1,Xuan-hui Qu1,21......
; Abstract: A new type of lead-based porous anode in zinc electrowinning was prepared by negative pressure infiltration. The anodic polarization potential and corrosion rate were studied and compared...%. Key words: zinc electrowinning; negative pressure infiltration; porous anode; anode potential; corrosion rate ......
