Porous anodic aluminum oxide films

Details Porous anodic aluminum oxide films Porous anodic aluminum oxide films

1988-11-16

1989-08-22

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

204 58, C25D 1100

Patent

active

048592889

ABSTRACT:
The invention provides porous anodic aluminium oxide film having a major face with an area of at least 50 cm.sup.2, the film material containing phosphorus derived from the anodizing electrolyte, preferably at least 5 microns thick and preferably having pores spaced 0.1-0.5 microns apart. The film may be made by anodizing one or more aluminium metal anodes of suitable area in an electrolyte based on phosphoric acid at a concentration of 5-150 g/l maintained at a temperature in the range 5.degree.-50.degree. C. using an anodizing voltage of 40-200 V. After separation from the metal substrate, the films have intersecting properties for use in filters.

REFERENCES:
patent: 4687551 (1987-08-01), Furneaux
Plating, vol. 58, pp. 449-457, (1971).
Trans. Inst. Metal Finishing, vol. 53, pp. 97-102, (1975).

Affiliated with

Also associated with

Rating

Porous anodic aluminum oxide films does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Porous anodic aluminum oxide films, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Porous anodic aluminum oxide films will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2416158