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powders were obtained via a patented reaction ball milling technique. The Sn melt reacted with the solid-state Cu during the milling process at different temperatures for different intervals. Two kinds... mechanism and advantages were discussed in comparison with that of high-energy ball milling. The results show the solutionizing of Ni powders in the Cu6Sn5 intermetallic. Key words: Cu-Sn binary......
Thermal Conductivity and Tensile Properties of Carbon Nanofiber-Reinforced Aluminum-Matrix Composites Fabricated via Powder Metallurgy: Effects of Ball Milling and Extrusion Conditions... were fabricated via ball milling and spark plasma sintering(SPS), SPS followed by hot extrusion and powder extrusion. Two mixing conditions of CNF and aluminum powder were adopted: milling at 90 rpm......
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of the sintered composites both increased with increasing the ball milling time. Key words: Ti35Nb2.5Sn/10HA; ultrafine grain; powder metallurgy; milling time 1 Introduction Recently β titanium alloys... 1) The α-Ti would transform into β-Ti completely after 12 h milling because of the mechanical alloying during the high energy ball milling. Nb and Sn solid diffuse into β-Ti to form Ti(Nb,Sn). 2......
2H); Trituration of micrograded tungsten carbide by high energy ball milling Abstract: The ultrafine tungsten carbide was prepared directly from micrograded raw products by high energy ball milling. The average particle size reaches its minimum at 0.4 μm after milling for 80 h, while the crystallite size reaches 10 nm. It means the as prepared WC particles......
and Fe element powders were reactively ball milled under H2 atmosphere in a planetary ball mill to synthesize Mg2FeH6 hydrogen storage materials. Milling parameters such as the starting powder mole ratio...: fuel cell; magnesium-based hydrogen storage materials; reactively mechanical alloying; ball milling ......
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高温球磨法制备发光材料BaMoO4:Eu3+陈雪冰1,邵忠宝2,田彦文3(1.辽宁省沈阳市东北大学材料与冶金学院2.东北大学 理学院3.东北大学 材料冶金学院,沈阳110004)摘 要:以(NH4)6Mo7O24·4H2O,BaCO3和Eu2O3为原料,用高温球磨法制备稀土掺杂发光材料BaMoO4:Eu3+粉体.利用XRD,SEM和发射光谱对粉体的结构,形貌和性能进行了表征,研究了球磨温度,球磨时间以及Eu3+掺杂量对粉体发光强度的影响.结果表明,用高温球磨法可降低材料的制备温度,并提高Eu3+的猝灭浓度从而提......
) was prepared by a physical and chemical method, the effects of ball milling time on its morphology as well as physical characteristics were investigated. Additionally, the effect of ball milling treatment... and ball milling treatment can greatly accelerate the sintering shrinkage rate of tungsten powder at low temperature, and significantly promote its sintering densification rate, the activated tungsten......
