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构疏松,其硬度及承载能力有限,且在潮湿环境中易潮解和氧化形成WO3,致使润滑性能急剧下降[5-6]. 研究表明,在WS2薄膜中掺入单质金属如Ti[7-8],Ag[9],Cr[10],Ni[11-12]等元素,可以改善薄膜的抗氧化性和耐磨性;而在WS2薄膜中添加非金属元素如C,N以及化合物[13-17]制成复合薄膜,其硬度,弹性模量,耐磨性等也得到了明显提升,如WU等[18]采用磁控溅射和脉冲激光沉..., LIN Song-sheng. Preparation and anti-fretting wear resistance of MoS2-Ti/Cu-Ni-In multilayer solid lubrication film on titanium alloy surface[J]. Surface Technology, 2017(1): 111-117. [22] XU Zhao......
for trains[J]. The Chinese Journal of Nonferrous Metals, 2008, 18(7): 1223-1230. [7] 朱旭光, 孙乐民, 陈 跃, 张永振. 制动条件对Cu基闸片材料摩擦磨损性能的影响[J]. 河南科技大学学报(自然科学版), 2015, 36(4): 1-4. ZHU Xu-guang, SUN Le-min, CHEN Yue, ZHANG Yong-zhen. Effect of braking conditions on tribological performance of Cu-based powder metallurgy brake pads[J]. Journal of Henan University of Science and Technology(Natural Science), 2015, 36......
Qing, YANG Sen, WANG Li-qun, SONG Xiao-ping. Effects of Cr content on electrochemical properties of melt-spun Al75-xSi25Crx alloy anodes for lithium-ion batteries[J]. Transactions of Nonferrous Metals... mA·h/g),存在锂沉积相关的安全问题[4-6].发展具有高嵌/脱锂容量,高充/放电功率,优异的循环稳定性能,低成本,安全性好的锂离子电池电极材料,成为当前的研究热点[7-9].许多金属都可以和Li反应,如Si,Sn,Sb,Al,Mg,Bi,In,Zn,Pb,Ag,Pt,Au,Cd,As,Ga和Ge等[10-14],可以成为锂离子电池负极的候选材料,其中金属Al在自然界中储量丰富,成本低廉,具有......
solution. A lead alloy and a stainless steel were used as the anode and cathode, respectively. A DC power supply was utilized to supply the current, and O2 bubbles were generated underneath the anode......
of In, Zn and Cu are 99.5%, 95.36% and 95.94% respectively when leaching temperature is 220 ℃, particle size is 75-80 μm, initial sulfuric acid concentration is 1.53 mol/L, stirring speed is 650 r...,不同的铟质量分数而采用不同的工艺.本文作者采用氧压酸浸的方法处理低含铟浸出渣,在充分研究各因素对铟浸出率影响的前提下,研究低含铟浸出渣中铟的浸出行为并获得铟的浸出动力学规律,以期实现铟的高效浸出. 1 实验 1.1 实验原料 实验原料为云南某铜冶炼厂的铜烟尘经焙烧-硫酸浸铜锌后得到的浸出渣,其化学成分如表1所示.原料中主要成分为Pb和Sn,而Zn,Cu,CaO,SiO2和......
, JANSEN W P, van WELZENIS R G, BRONGERSMA H H, BRANDS D S, POELS E K, BLIEK A. Cu/ZnO and Cu/ZnO/SiO2 catalysts studied by low-energy ion scattering [J]. The Journal of Physical Chemistry B, 1999... with air [J]. Journal of the European Ceramic Society, 2015, 35: 4005-4010. [16] BJORKMAN B. An assessment of Cu, Ni, and Zn silicate systems: I. The binary systems CuO0.5-SiO2, NiO-SiO2 and ZnO-SiO2......
(about 10% Na2Cr2O7·2H2O), which is extremely hazardous waste. CVR is often stored in considerably expensive manner because of the presence of Cr(VI) [2–5]. However, CVR is a valuable resource because... NaHCO3 and 90.9 g/L Na2CO3. However, the residue containing 0.67 wt% V2O5 and 1.02 wt% Na2Cr2O7·2H2O is a hazardous waste, and it is extremely difficult to extract 100% chromate (Cr(VI)) from the residue......
, XIAO Shoune. Dynamic mechanical properties of aluminum alloy used in car bodies of trains and effect on energy absorption[J]. Journal of Central South University(Science and Technology), 2015, 46(7......
, SAKHAEI S. Interfacial microstructure and mechanical properties of tungsten carbide brazed joints using Ag-Cu-Zn+Ni/Mn filler alloy [J]. Transactions of Nonferrous Metals Society of China, 2017, 27......
-hong, JIANG Hong-xiang, XU Han-dong, LIU Song-yong. High-hardness alloy substituted by low hardness during drilling and cutting experiments of conical pick [J]. International Journal of Rock Mechanics......