物理化学学报 >> 1996, Vol. 12 >> Issue (03): 276-279.doi: 10.3866/PKU.WHXB19960317

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多孔质铝阳极氧化膜表面与界面研究

徐洮,齐尚奎,赵家政,陈建敏   

  1. 中国科学院兰州化学物理研究所固体润滑开放实验室，兰州 730000
  • 收稿日期:1995-05-03 修回日期:1995-07-31 发布日期:1996-03-15
  • 通讯作者: 徐洮

Study on the Surface and Interfance of Anodic Oxide Film of Aluminum

Xu Tao,Qi Shang-Kui,Zhao Jia-Zheng,Chen Jian-Min   

  1. Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000
  • Received:1995-05-03 Revised:1995-07-31 Published:1996-03-15
  • Contact: Xu Tao

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关键词: 铝阳极氧化, 表面, 界面结构, AES;HREM

Abstract:

The surface and interface between anodic oxide film and aluminum substrate have been studied by AES、 HREM and TEM. The anodic oxide film of aluminum formed in sulfuric acid electrolyte has porous structure and the main composition is amorphous Al2O3, the sulfate exists in the whole film, and enriches between cells of the film. There is a transition layer (thickness: ~ 6 nm), which consists of oxides and aluminum ion between anodic oxide film and aluminum substrate. The presence of this transition layer causes the expansion of the interface and increases the adhesion strength between anodic oxide film and aluminum substrate.

Key words: Anodic oxide film of aluminum, Structure of interface and surface, AES, HREM