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:To explore the effects of mechanical activation methods(ball mill, planetary mill and rod mill) on the oxidation and the spontaneous combustion of pyrite... and the kinetic parameters were deduced using Bagchi method. The relationship between the kinetic parameters indicates that, pyrite activated by ball milling shows the best thermal stability......
in multiwalled carbon nanotubes(MWCNTs) matrix has been fabricated by a facile two-step ball milling strategy,including a sand milling process to prepare Sb nanoparticles and following high-energy ball......
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; Abstract: Ball mixing and electroless... resistance of cermet samples were studied. The results show that, for the samples prepared by ball mixing method, aggregation of metallic phase is found in either the green blocks or sintered samples......
Metallurgy, Kunming University of Science and Technology, Kunming 650093, China) Abstract: LiFe0.98Mg0.02PO4/C composite cathode material was prepared by wet ball milling-spray drying method. The precursors and LiFePO4 samples were characterized by laser particle size analyzer, XRD, SEM, and electrochemical charge-discharge tests. The effects of different ball milling processes on the morphologies......
料球比对EMRs中Mn和Cr的浸出影响情况.当球磨时间为60 min时,试验结果如图2所示. 图2 料球比对Mn和Cr浸出的影响 Fig. 2 Effect of ratio of material to ball on leaching rate of Mn and Cr 由图2可知,不同料球比条件下对Mn的浸出效果均优于Cr的浸出.在料球比为0.5时其浸出率达到最大值...(8): 1701-1707. CHEN Zhe, XIA Liu-yin, BRIAN H A R T, CHI Ru-an, YU Jun-xia. Influence of ball mill medium and size on properties of copper-zinc ore pulp and mineral surface[J]. The Chinese Journal......
the function of grain refinement. Therefore, it is necessary to avoid overloading and overheating in the application of such component. Thus, a kind of thermo valve that works at normal pressure......
.The higher Sv of the film is close to that of a spin valve (SV).The microstructure analysis shows that the NiFeCr buffer layer has adopted the same structure with the same interplanar distance as the NiFe......
, Wuhan 430074, China) Abstract: The thermodynamic parameters variation in the stagnation state of the cryogenic fluid near the globe valve in the delivery pipelines was investigated. A mathematical... of stagnation were analyzed, and the dominant reasons of the temperature rise before the globe valve were investigated. The results show that the temperature rise can be reduced by decreasing the pipeline......
c=6198.8 Oe. Based on the mentioned results, one can recommend the use of such orthoferrite in magnetic recording media and as pining layer in spin valve for spintronic applications.关键词:......
