Bulletin of Materials Science

, Volume 34, Issue 3, pp 423–427

Effect of process parameters on growth rate and diameter of nano-porous alumina templates

  • P CHOWDHURY
  • K RAGHUVARAN
  • M KRISHNAN
  • HARISH C BARSHILIA
  • K S RAJAM
Article

DOI: 10.1007/s12034-011-0104-6

Cite this article as:
CHOWDHURY, P., RAGHUVARAN, K., KRISHNAN, M. et al. Bull Mater Sci (2011) 34: 423. doi:10.1007/s12034-011-0104-6

Abstract

Anodic aluminium oxide (AAO) template with hexagonal shaped nano-pores with high aspect ratio was fabricated by two-step anodization processes from high purity aluminium foil. It was observed that pore dimensions were affected by anodizing voltage, electrolyte temperature and the duration of anodization time. The vertical growth rate of the pores (10–250 nm/min) was found to vary exponentially with anodizing voltage; however, it exhibits linear increment with the electrolyte temperature. The measured pore diameter (50–130 nm) shows a linear variation with anodizing voltage. The bottom barrier oxide layer was etched out by pore widening treatment to obtain through holes.

Keywords

Anodic aluminium oxide barrier oxide layer nano-pores 

Copyright information

© Indian Academy of Sciences 2011

Authors and Affiliations

  • P CHOWDHURY
    • 1
  • K RAGHUVARAN
    • 1
  • M KRISHNAN
    • 1
  • HARISH C BARSHILIA
    • 1
  • K S RAJAM
    • 1
  1. 1.Surface Engineering DivisionNational Aerospace Laboratories (CSIR)BangaloreIndia

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