Porous aluminum oxide film and method of forming of the same

Details Porous aluminum oxide film and method of forming of the same Porous aluminum oxide film and method of forming of the same

1989-09-26

1991-12-31

Tufariello, T. M.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428134, B32B 310

Patent

active

050771140

ABSTRACT:
A porous aluminum oxide film has a plurality of pores passing through the film. Each pore has a pair of larger diameter pores and a smaller diameter pore. The smaller diameter pore is disposed in a central portion with respect to the thickness of the film, and the larger diameter pores are disposed upon both ends of the smaller diameter pore.

REFERENCES:
patent: 3671410 (1972-06-01), Stahr
patent: 3850762 (1974-11-01), Smith

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