Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Formation and Chemical Dissolution Behaviors of Nano Porous Alumina

나노 기공성 알루미나의 생성과 화학적 용해 거동

  • Oh, Han-Jun (Department of Materials Science, Hanseo University) ;
  • Jeong, Yong-Soo (Materials Processing Division, Korea Institute of Materials Science) ;
  • Chi, Choong-Soo (School of Advanced Materials Engineering, Kookmin University)
  • 오한준 (한서대학교 신소재공학과) ;
  • 정용수 (한국재료연구소 융합공정연구본부) ;
  • 지충수 (국민대학교 신소재공학부)
  • Received : 2010.09.27
  • Accepted : 2010.10.30
  • Published : 2010.10.31
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Abstract

For an application as templates of high performance with proper pore size and shape, porous anodic alumina films were prepared by anodization in oxalic acid, and formation behaviors of anodic alumina layer as well as dissolution process in acid solution have been investigated. The surface characteristics on anodic alumina layer were shown to be dependent on the fabrication parameters for anodization. For the dissolution behaviors of anodic alumina, the thickness of the barrier-type alumina layer decreased linearly with the rate of 0.98 nm/min in $H_3PO_4$ solution at $30^{\circ}C$. The changes of the anodic alumina layers were analyzed by SEM and TEM.

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References

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