Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Forming nonmetal coating
Reexamination Certificate
2006-02-28
2006-02-28
King, Roy (Department: 1742)
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Forming nonmetal coating
C205S323000, C205S324000, C205S320000, C148S243000, C148S272000, C148S277000, C148S284000
Reexamination Certificate
active
07005056
ABSTRACT:
A method for inhibiting corrosion, e.g., pitting corrosion, of alloys is provided. Particularly, the method comprises contacting at least a portion of a surface of the alloy with an aqueous solution comprising a salt of one or more rare earth elements selected from the group consisting of yttrium, gadolinium, cerium, europium, terbium, samarium, neodymium, praseodymium, lanthanum, holmium, ytterbium, dysprosium and erbium; and establishing a voltage differential between an anode comprising the alloy and a cathode in the solution at an effective level and for a sufficient period of time wherein a rare earth element oxide-containing coating is formed on the surface of the alloy to inhibit corrosion thereof.
REFERENCES:
patent: 3973998 (1976-08-01), Datta et al.
patent: 3996115 (1976-12-01), Kessler
patent: 4614569 (1986-09-01), Duruz et al.
patent: 5240589 (1993-08-01), Bartak et al.
patent: 5332488 (1994-07-01), Mitsuji
patent: 6022425 (2000-02-01), Nelson et al.
patent: 6068711 (2000-05-01), Lu et al.
patent: 6120619 (2000-09-01), Goudiakas et al.
patent: 6190780 (2001-02-01), Shoji et al.
patent: 2003/0170526 (2003-09-01), Hodgson et al.
patent: WO 00/22689 (2000-04-01), None
H.S. Isaacs et al. The Electrochemical Response of Steel to the Presence of Dissolved Cerium. Journal of Electrochemical Society. vol. 138, No. 2, Feb. 1991, p. 390-393. The Electrochemial Society, Inc.
Fogel Stuart A.
Saffarian Hassan M.
Srinivasan Rengaswamy
Cooch Francis A.
King Roy
The Johns Hopkins University
Zheng Lois
LandOfFree
Method for inhibiting corrosion of alloys employing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for inhibiting corrosion of alloys employing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for inhibiting corrosion of alloys employing... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3711236