Effects of Annealing Treatment of Aluminum Substrate on Nanopore Arrangements in Anodic Alumina

Han Jun Oh; Kyung Wook Jang; Jong Ho Lee; Beom Su Ki; Chang Hoe Heo; So Hyun Kwon; Choong Soo Chi

doi:10.4028/www.scientific.net/SSP.118.549

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Effects of Annealing Treatment of Aluminum Substrate on Nanopore Arrangements in Anodic Alumina

Abstract:

Effects of annealing treatments of aluminum substrate for ordered nanopore arrays formed by self-organized anodization have been investigated. To observe the relationship between microstructures of aluminum substrate and nanopore regularity formed after anodization of the aluminum substrate, aluminum specimens were annealed at 300, 400, and 500 °C. The anodic alumina layer was prepared by two-step anodizing process in oxalic acid at 40 V. The ordered arrays of nanopore on anodic alumina were shown to be strongly dependent on the annealing conditions, and nanopore regularity on alumina template increased with increasing annealing temperature and time.