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Citation: GONG Yun-Lan, WANG Wei, WANG Hui, GUO He-Tong. Effect of the Dislocation on the Nano-pore Array Structure of Anodic Alumina Films[J]. Chinese Journal of Applied Chemistry, ;2002, 19(11): 1103-1105. shu

Effect of the Dislocation on the Nano-pore Array Structure of Anodic Alumina Films

GONG Yun-Lan ^a,b ,
WANG Wei ^a,, ,
WANG Hui ^a ,
GUO He-Tong ^a

1.
a School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072;
2.
b School of Engineering and Technology, Tianjin college of Commerce, Tianjin

Corresponding author: WANG Wei,
Received Date: 26 March 2002
Available Online: 16 July 2002
Fund Project: 国家自然科学基金资助项目(50071040) (50071040)

Nano-pore array structure of alumina films formed on different aluminum substrate in acid electrolyte by electrochemical anodization has been studied. It is found that dislocation as one of the important parameters in self-assembling process not only affects the current density occuring in anodization, but also the nano-pore order. Dislocation leads to the differences of the energy of Al and the speed of Al³⁺ forming in dislocation and non-dislocation. Dislocation was also in close relation with the acidity of the electrolyte used. The stronger the acidity of the electrolyte, the greater the influence of the dislocation.
- dislocation,
- porous alumina film,
- acidity of electrolyte
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