共搜索到28040条信息,每页显示10条信息,共2804页。用时:0小时0分0秒562毫秒
prepared using other grinding patterns. Specific surface area, particle size distribution, surface roughness, Fe(Ⅲ) contamination, binding energy, and zeta potential are greatly influenced by grinding... to measure the binding energy and atomic concentration on the surface of the samples. 2.3.5 Zeta potential A suspension containing 0.1 wt% sample particles (ground to 5 μm in an agate mortar) was prepared......
]. Engineering Geology, 2019, 260: 105222. DOI: https://doi.org/10.1016/ j.enggeo.2019.105222. [13] MCSAVENEY M J, DAVIES T R. Surface energy is not one of the energy losses in rock comminution [J... J. Cent. South Univ. (2021) 28: 848-865 DOI: https://doi.org/10.1007/s11771-021-4649-2 Experimental study on energy storage and dissipation characteristics of granite under two-dimensional......
increases that caused by increasing energy density. Fig.3 Influence of electrolyte concentration on coating surface roughness 3.4 Influence of electrical parameters The positive voltage of single pulse, the voltage ratio of positive to negative, and the frequency, directly influence on the coating surface roughness because they directly determine the discharge spark energy. And the negative......
Effect of surface modification of metal hydride electrode on performance of MH/Ni batteries YANG Kai(杨 凯), WU Feng(吴 锋), CHEN Shi(陈 实), ZHANG Cun-zhong(张存中) School of Chemical Engineering...: A novel method was applied to the surface modification of the metal hydride(MH) electrode of MH/Ni batteries. Both sides of the electrode were plated with a thin silver film about 0.1μm thick using vacuum......
is divorced eutectic phase existing along grain boundaries, and the new phase formed during alloying process distributes on the substrate surface with a chrysanthemum shape. The energy spectrum analysis show... Mg alloy surface alloying layer fabricated through evaporative pattern casting technology CHEN Dong-feng(陈东风), DONG Xuan-pu(董选普), ZHANG Xiong(张 雄), FAN Zi-tian(樊自田) State Key Laboratory......
system operation for air-source heat pumps (ASHPs). A novel reverse-cycle defrosting (NRCD) method based on thermal energy storage to eliminate frost off the outdoor coil surface was developed. Comparative... be absorbed and stored in the PCM. When defrost became necessary, the heat stored in the PCM-HE could be used so as to provide sufficient thermal energy to melt the frost off the outdoor coil surface. ......
plastic deformation using ultrasonic shot peening[2-4], high- energy shot peening(HESP)[5,6], surface mechanical attrition treatment(SMA)[7-9], wire-brushing[10] and circulation rolling plastic... with nanostructured surface layer induced by high-energy shot peening [J]. Scripta Mater, 2001, 44: 1791-1795. [6] CHEN Chun-huan, REN Rui-ming, ZHAO Xiu-juan, ZHANG Yu-jun. Surface nanostructures......
. The surface energy of SIR is reduced largely from 27.37 mJ/m2 of original SIR sample to 2.94 mJ/m2 of SIR sample treated by CF4 CCP modification at RF power of 200 W for a treatment time of 5 min. According to the XPS, ATR-FTIR and surface energy analysis, it is suggested that the improvement of hydrophobicity on the modified SIR surface is mainly ascribed to the decrease of surface energy......
and its deduction. Fig.3 Temperature dependence of surface tension of molten Ni-10%(Cr, Co, W) alloys: (a) Ni-10%Cr; (b) Ni-10%Co;(c) Ni-10%W The reasons for the difference are: 1) energy change of the system (mixing heat) not taken into account; 2) the measurement error; 3) the assumptions for a surface such as monolayer atom; 4) the differences in the energy of the Gibbs free energy......
strength. To further explaining, the rougher the structural surface was, the more the deformation energy saved by the little asperities on the surface before the creep destroy, and then the more strongly...J. Cent. South Univ. Technol. (2008) 15(s1): 374-380 DOI: 10.1007/s11771-008-383-2 Rheological characteristics of soft rock structural surface CHEN Yuan-jiang(陈沅江)1, 2, WU Chao(吴 超)1, FU Yi......