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

Chowdhury, P and Raghuvaran, K and Krishnan, M and Barshilia, Harish C and Rajam, KS (2011) Effect of process parameters on growth rate and diameter of nano-porous alumina templates. Bulletin of Materials Science, 34 (2). pp. 1-5. ISSN 0250-4707

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    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.

    Item Type: Journal Article
    Uncontrolled Keywords: Anodic aluminium oxide; barrier oxide layer; nano-pores.
    Subjects: CHEMISTRY AND MATERIALS > Inorganic, Organic and Physical Chemistry
    Division/Department: Surface Engineering Division, Other, Surface Engineering Division, Surface Engineering Division, Surface Engineering Division
    Depositing User: Mr N Selvakumar
    Date Deposited: 02 Aug 2011 10:32
    Last Modified: 02 Aug 2011 10:32
    URI: http://nal-ir.nal.res.in/id/eprint/9747

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