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of Al alloy anode is coated by a porous and adherent tin layer or by an irregular granular indium layer. Fig.3 SEM image of surface of Al anode reacted in 4 mol/L NaOH+3 mol/L NaAlO2 at 25... of Al alloy anode were carried out at 25 ℃. 2.3 Surface analysis The micrographs of the surface of Al anode reacted in alkaline media with or without additives were examined using Sirion200(FEI.,USA......
; Co-8.8Al-9.8W-xTa合金氧化膜截面和表面的显微组织 Fig. 4 Cross-sectional and surface microstructures of oxide film of Co-8.8Al-9.8W-xTa superalloys 图5所示为0.5Ta和1.5Ta合金氧化膜的元素分布.由图5可以看出,合金氧化膜大致分为3层,即厚度随Ta含量增加逐渐减小的钴... and the μ phase separation is inhibited. The oxide film of Co-8.8Al-9.8W-xTa (x=0, 0.5, 1, 1.5, 2) superalloy mainly consists of three layers, the outermost layer mainly is cobalt oxide, the intermediate......
, and the middle layer is rich in Al and the inner layer is rich in Ti. For (Ti0.45Al0.45Cr0.1)N, the oxide scale possesses a double-layered structure and the outer layer is rich in Ti. For (Ti0.35Al0.35Cr0.3)N, a Cr-rich compound oxide scale of Ti, Al and Cr forms, and a out-diffusion of Fe from steel to the nitride coating and oxide film during the oxidation takes place. Key words: (Ti,Al,Cr)N......
, which is obtained at 32.4% Al (mole fraction). Compared with WN film, the W1-xAlxN composite films show much better oxidation resistance because of the formation of dense Al2O3 oxide layer on the surface. Key words: W1-xAlxN film; microstructure; hardness; oxidation resistance; Al2O3 layer 1 Introduction Hard thin films prepared by physical vapor deposition (PVD) are used to improve wear resistance......
低,泡沫体中无泡层的厚度得到很好的控制. 关键词:泡沫铝;熔体发泡法;无泡层;黏度;表面张力 中图分类号:TG 146.2 文献标识码:A Formation and control of bubble-free layer during preparation of Al foam by foaming in melt... 110004, China) Abstract: The formation and control of bubble-free layer in Al foam block during the preparation was investigated, the surface tension of melt Mg was viewed, and the effect of Mg......
Li(Mn1/3Ni1/3Co1/3)1-yMyO2(M=Al, Mg, Ti)正极材料的制备及性能 李义兵, 陈白珍, 徐 徽, 石西昌, 胡拥军, 陈 亚 (中南大学 冶金科学与工程学院, 长沙 410083) 摘 要: 采用液相共沉淀合成锰镍钴氢氧化物前驱体, 在前驱体中掺入元素M(M=Al, Mg, Ti), 与锂结合生成Li...合氧化物, 可获得比容量高, 循环寿命好, 原料成本低的较理想的锂离子电池正极材料, 因此受到广泛关注[ 8-12]. 本文作者采用液相共沉淀合成锰镍钴氢氧化物前驱体, 并在前驱体中进一步掺入其他元素M(Al, Mg, Ti), 然后与锂结合制备Li(Mn1/3Ni1/3Co1/3)1-y-MyO2(M=Al, Mg, Ti)正极材料, 探讨了掺杂元素对材料结构和性能的影响. 1 实验......
. Noncrystal SiO2 was coated on the surface of nano-TiO2 to form silica gel polymer with a Ti-O-Si bond, while aluminum compound exists in the form of AlOOH and part Al(OH)3. The integrated dense film can shield photocatalysis effectively. The inorganic coating film can increase the wettability for xylene and stability in water. The surface modification of nano-TiO2 will not impair its ability for anti......
liquid Mg alloy onto the solid Al alloy substrate. The difficulty of liquid-solid connection of magnesium/aluminum is the nature oxide layer on the solid Al alloy substrate surface that usually prevents... the mechanical property of materials. The process of removing the oxide layer on solid Al substrate surface was investigated, and on this basis, the melt magnesium alloy was cast onto the solid aluminum......
:Ti–Al surface alloy was fabricated using a cyclic pulsed liquid-phase mixing of predeposited 100 nm Al film with a-Ti substrate by low-energy high-current... the characterization of Ti–Al surface alloy. The experimental results show that the thickness of alloy layer is *3 lm, and the content of Al in the *1 lm thickness surface layer is *60 at%. The tetragonal TiAl......
like grain boundaries, and its surface masked by an uneven layer. As can be observed, the 0.4 wt.% ZrO2 incorporated Al-Mg- Ga-Sn alloy demonstrates relatively even corroded surface. This observation...Trans. Nonferrous Met. Soc. China 30(2020) 90-98 Evaluation of nanometer-sized zirconium oxide incorporated Al-Mg-Ga-Sn alloy as anode for alkaline aluminum batteries Mortaza AFSHARI1, Robab ABBASI2......