Iron-phosphorus electroplating bath and electroplating method using same
US4746412A · kind A · utility
15Cited by
4References
17Claims
0Family size
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Key dates
| Filing date | Jul 3, 1986 |
| Grant date | May 24, 1988 |
| Priority date | — |
| Expiry date | Jul 3, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B77/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An Fe-P alloy film is electrodeposited on a workpiece in a bath comprising 20-80 g/l ferrous ion, 0.01-15 g/l hypophosphorous acid and/or a hypophosphite, and 0.05-5 g/l aluminum ion or a bath comprising 20-80 g/l ferrous ion and 0.01-20 g/l phosphorous acid and/or a phosphite, and optionally aluminum ion at 10.degree.-80.degree. C. and 0.5-30 A/dm.sup.2. There is obtained a crack-free alloy film having a P content of 0.1 to 9.9 wt %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.