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show that the Al-Ni composite anodic film is more compact with smaller pore diameters than that of the Al anodic film.The introduction of nickel increases the impedances of both the barrier layer...Preparation and Properties of Al-Ni Composite Anodic Films on Aluminum Surface赵旭辉,左禹School of Materials Science and Engineering,Key Laboratory of Carbon Fiber and Functional Polymers,Ministry......
, the crystallinity of the anodic oxide, and the chemical state were investigated. The results show the anodic film is composed of oxide and a little amount of hydroxide. The presence of F- ions leads... measurement, the O 1s spectra (Fig.3) about the chemical state of the TiO2 nanotubes clearly show that the anodic film consists of oxide (530.1 eV) and a little amount of hydroxide (531.9 eV). Fig.3 XPS......
,Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China) Abstract: The TiO2 porous film was prepared by constant voltage anodic oxidation on the surface of pure titanium using...-porous TiO2 films are gained in the hydrofluoric acid, and the aperture size is 10-50nm. Key words: anodic oxidation; TiO2 porous film; electrolyte 阳极氧化法作为一种多孔膜的制备方法, 早已被运用于Al2O3多孔膜的制备研究当中. 而Al2O3多孔膜......
particles were examined by scanning electron microscopy(SEM) and energy dispersive spectroscopy(EDS) after pretreatment. The anodic film was investigated by transmission electron microscopy(TEM), and its... with the iron content. During anodizing, these intermetallic particles are gradually dissolved, leading to the complex porosity in the anodic film beneath the particles. After anodizing, the residual......
STUDY OF ANODIC OVERVOLTAGE IN NEODYMIUM ELECTROLYSIS Q.Han1,K.R.Liu1,J.S.Chen1,X.J.Wei1 (1.School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China) Abstract:The anodic overvoltage of neodymium electrolysis was determined by slow scanning oscillogram. The effects of some factors, i.e. the temperature, the anodic current density, the concentration of Nd2O3......
; Effects of anodizing parameters on cracking behavior of anodic film on ZL201 aluminium alloy LIU Wei-hua, ZUO Yu, GUO Chao, ZHAO Xu-hui (School of Materials of Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China) Abstract: The effects of oxidation time, sulfuric acid concentration and current density on heat-resistance of anodic film formed on ZL201......
and Technology, Hangzhou 310012,China) Abstract:The porous anodic aluminum oxide (AAO) film on a pure aluminum substrate was prepared by a two-step anodization in a 0.3M oxalic acid solution and pore...FRICTION PROPERTIES OF OIL-INFILTRATED POROUS AAO FILM ON AN ALUMINUM SUBSTRATE C.X. Jiang1,X.B. Zhao1,M.F. Fu2,S.Y. Guo3,J.P. Tu1 (1.Department of Materials Science and Engineering, Zhejiang......
下降,难以形成规则的密排六角结构. 表1 不同电解质溶液阳极氧化得到的AAO膜参数 Table 1 Parameters of AAO film prepared by anodic oxidation in different electrolyte solutions 2.2 特殊电解质(不同pH)中AAO的制备 为了了解溶液pH对AAO膜形貌的影响,分别.... 3 Patterns of AAO film prepared by anodic oxidation in common electrolyte solutions 图4 特殊电解质溶液阳极氧化得到的AAO膜形貌 Fig. 4 Patterns of AAO film prepared by anodic oxidation with special......
of the anodic oxide film of titanium alloy Ti-10V-2Fe-3Al. Key words: sealing; corrosion resistance; roughness; calcium acetate; titanium alloy 1 Introduction Titanium and its alloys are currently used... after sealing. Fig.1 SEM images of surface and cross-section of anodic oxide films on Ti-10V-2Fe-3Al titanium alloy: (a), (b) Unsealed film; (c), (d) Sealed film Fig.2 EDS depth profile recorded......
Electrochemical modification process of anodic alumina membrane YU Mei(于 美), LIU Jian-hua(刘建华), LI Song-mei(李松梅) School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China Received 10 April 2006; accepted 25 April 2006 Abstract: The modification procedure of anodic alumina membrane(AAM) was studied. The AAM structure after......
