Affiliations: Department of Materials Science & Engineering, Kumamoto University, Kurokami, Kumamoto, Japan
Correspondence:
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Corresponding author: T. Kozuka, Department of Materials Science & Engineering, Kumamoto University, Kurokami, Kumamoto, Japan. E-mail:kozka@gpo.kumamoto-u.ac.jp
Abstract: Metal anodizing process is now widely applied to not only
usual commercial products but also advanced materials like a photo-catalyst
or some nano-materials. In these applications, micro-pore or nano-pore
structure in the anodized oxide film, e.g. pore arrangement or straightness,
is considered to be important to improve the performance of electric devices
etc. In this research, in order to obtain good arrangement and
straightness and control of pore size, strong magnetic field and strong
electric field imposition during anodization are conducted for Al and Ti
under intense electric field and intense magnetic field imposition. Strong
electric field can control the pore size and its distribution. Strong
magnetic field can promote the metal substitution reaction and it also
increase the metal anodizing. Furthermore, magnetic field has the
possibility of ordering the pore arrangement in the anodized film.
