Zinc phosphate conversion coatings
Abstract
Zinc phosphate conversion coatings for producing metals which exhibit enhanced corrosion prevention characteristics are prepared by the addition of a transition-metal-compound promoter comprising a manganese, iron, cobalt, nickel, or copper compound and an electrolyte such as polyacrylic acid, polymethacrylic acid, polyitaconic acid and poly-L-glutamic acid to a phosphating solution. These coatings are further improved by the incorporation of Fe ions. Thermal treatment of zinc phosphate coatings to generate {alpha}-phase anhydrous zinc phosphate improves the corrosion prevention qualities of the resulting coated metal. 33 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Associated Universities Inc
- OSTI Identifier:
- 441855
- Patent Number(s):
- 5604040
- Application Number:
- PAN: 8-565,902
- Assignee:
- Associated Universities, Inc., Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH00016
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 18 Feb 1997
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; ZINC PHOSPHATES; PROTECTIVE COATINGS; METALS; CORROSION PROTECTION; HEAT TREATMENTS; PROMOTERS; CORROSION RESISTANCE; FABRICATION
Citation Formats
Sugama, T. Zinc phosphate conversion coatings. United States: N. p., 1997.
Web.
Sugama, T. Zinc phosphate conversion coatings. United States.
Sugama, T. Tue .
"Zinc phosphate conversion coatings". United States.
@article{osti_441855,
title = {Zinc phosphate conversion coatings},
author = {Sugama, T},
abstractNote = {Zinc phosphate conversion coatings for producing metals which exhibit enhanced corrosion prevention characteristics are prepared by the addition of a transition-metal-compound promoter comprising a manganese, iron, cobalt, nickel, or copper compound and an electrolyte such as polyacrylic acid, polymethacrylic acid, polyitaconic acid and poly-L-glutamic acid to a phosphating solution. These coatings are further improved by the incorporation of Fe ions. Thermal treatment of zinc phosphate coatings to generate {alpha}-phase anhydrous zinc phosphate improves the corrosion prevention qualities of the resulting coated metal. 33 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 18 00:00:00 EST 1997},
month = {Tue Feb 18 00:00:00 EST 1997}
}
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