Articles with electroplated zinc-nickel ternary and higher alloys, electroplating baths, processes and systems for electroplating such alloys
US7442286B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2004 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Jul 8, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D3/565
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An electroplating bath, a system, a process for, and the article obtained from, depositing a zinc-nickel ternary or higher alloy, a) zinc ions; b) nickel ions; and c) one or more ionic species selected from ions of Te+4, Bi+3 and Sb+3, and in some embodiments, further including one or more additional ionic species selected from ions of Bi+3, Sb+3, Ag+1, Cd+2, Co+2, Cr+3, Cu+2, Fe+2, In+3, Mn+2, Mo+6, P+3, Sn+2 and W+6. In some embodiments, the system includes a divider forming a cathodic chamber and an anodic chamber, with the electroplating bath in the cathodic chamber only. In various embodiments, the zinc-nickel ternary and higher alloys may provide improved properties to the conductive substrates upon which the alloys are deposited.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.