Surface treated titanium/titanium alloy articles and process for producing
US5185075A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1990 |
| Grant date | Feb 9, 1993 |
| Priority date | — |
| Expiry date | Oct 25, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D11/026
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Surface treated titanium and titanium alloy articles having a thin anodized film substantially of TiO.sub.2 and characterized by a leakage current of less than about 25 microamps per square centimeter and a dielectric strength of at least one million volts per square centimeter, together with a high breakdown potential and high corrosion resistance, is disclosed. The process for forming such titanium and titanium alloy articles is also disclosed and is characterized by anodizing the articles in a substantially non-aqueous solution of a mineral acid and an organic solvent at a formation current above 0.1 microamps per square centimeter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.