Fabrication and Structural Studies of Porous Anodic Oxide Film on Pure Aluminium and Aluminium Alloy (AA 1100)

An anodic oxide film is formed on aluminum in an acidic elecrolyte during anodizing. The structure of the oxide film was observed directly by carbon replica method(l) and ultra-thin sectioning method(2). The oxide film consists of barrier layer and porous layer constructed with fine hexagonal cellular structure. The diameter of micro pores and the thickness of barrier layer depend on the applying voltage and electrolyte. Because the dimension of the pore corresponds to that of colloidal particles, many metals deposit in the pores. When the oxide film is treated as anode in emulsion of polyelectrolyte, the emulsion particles migrate onto the film and deposit on it. We investigated the behavior of the emulsion particles during electrodeposition.Aluminum foils (99.3%) were anodized in either 0.25M oxalic acid solution at 30°C or 3M sulfuric acid solution at 20°C. After washing with distilled water, the oxide films used as anode were coated with emulsion particles by applying voltage of 200V and then they were cured at 190°C for 30 minutes.

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Elucidation of the thickness inside the niobium anodic oxide film and its effect on adhesion to polyimide film

Vacuum ◽

10.1016/j.vacuum.2021.110265 ◽

2021 ◽

pp. 110265

Author(s):

Munenori Yoshida ◽

Hiromi Yamanaka ◽

Kenta Tomori ◽

Sergei Kulinich ◽

Syuuichi Maeda ◽

...

Keyword(s):

Oxide Film ◽

Anodic Oxide ◽

Polyimide Film ◽

Anodic Oxide Film

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The pore-enlargement and self-lubrication treatment of anodic oxide film of aluminum

Wear ◽

10.1016/0043-1648(95)06904-6 ◽

1996 ◽

Vol 196 (1-2) ◽

pp. 214-218 ◽

Cited By ~ 12

Author(s):

Xu Tao ◽

Chen Jianmin ◽

Zhao Jiazheng ◽

Dang Hongxin

Keyword(s):

Oxide Film ◽

Anodic Oxide ◽

Anodic Oxide Film ◽

Pore Enlargement

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ChemInform Abstract: Evidence for an Ideal Transparent Anodic Oxide Film on Zirconium.

ChemInform ◽

10.1002/chin.199529020 ◽

2010 ◽

Vol 26 (29) ◽

pp. no-no

Author(s):

J. L. ORD ◽

D. J. DE SMET

Keyword(s):

Oxide Film ◽

Anodic Oxide ◽

Anodic Oxide Film

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ChemInform Abstract: An in situ IR Spectroscopic Study of the Anodic Oxide Film on Cobalt in Alkaline Solutions.

ChemInform ◽

10.1002/chin.199246018 ◽

2010 ◽

Vol 23 (46) ◽

pp. no-no

Author(s):

A. BEWICK ◽

C. GUTIERREZ ◽

G. LARRAMONA

Keyword(s):

Oxide Film ◽

Spectroscopic Study ◽

Anodic Oxide ◽

Anodic Oxide Film ◽

Alkaline Solutions ◽

In Situ Ir ◽

Ir Spectroscopic

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Functionalization and its Possibility as a Catalyst Object of Anodic Oxide Film

Journal of The Surface Finishing Society of Japan ◽

10.4139/sfj.65.420 ◽

2014 ◽

Vol 65 (9) ◽

pp. 420-425

Author(s):

Hideo KAMEYAMA

Keyword(s):

Oxide Film ◽

Anodic Oxide ◽

Anodic Oxide Film

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Study on Anodizing Processes for Formation of Nano Porous Aluminum Oxide Thin Films

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.236-238.3061 ◽

2011 ◽

Vol 236-238 ◽

pp. 3061-3064

Author(s):

Thein Thein Kyaw ◽

Kyaw Myo Naing ◽

Nyunt Win

Keyword(s):

Oxide Film ◽

Aluminum Oxide ◽

Sulphuric Acid ◽

Anodic Oxide ◽

Film Coating ◽

Anodic Oxide Film ◽

Oxide Thin Film ◽

Operation Condition ◽

Porous Aluminum ◽

Coating Weight

In this paper aluminum oxide thin film was prepared by anodic oxidation in various acid baths such as sulphuric acid, chromic acid and phosphoric acid with different concentrations. The thickness and appearance of the anodized films formed has been compared. The thicknesses of anodic oxide film, coating weight per unit area and coating ratio of anodic oxide film variation were determined with respect to the different electrolyte concentrations by using the thickness determination formula. Sulphuric acid gives the highest thickness aluminum oxide films, in the operation condition of 15% H2SO4solution composition, 15V, 30±2°C, 100 mA, 60 mins.

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