Method for production of a structure with pores by anodizing
US7455759B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2004 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | May 22, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D11/045
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An anodized coating suitable for formation of highly regulated pores is provided. A method for production of a structure having pores characterized by including the steps of: forming starting points at predetermined intervals in an aluminum alloy formed on a substrate, and forming pores by anodization with the starting points as origins. In another embodiment, first and second aluminum alloy layers are anodized to form pores penetrating into the layers, wherein a diameter of a pore in the first alloy is different from a diameter of a pore in the second alloy. In an additional embodiment, a substrate is anodized to form pores, wherein the substrate contains an additive which changes the diameter within each pore, the amount of the additive continuously changing along the direction perpendicular to the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.