Surface modified copper alloys

Details Surface modified copper alloys Surface modified copper alloys

1992-01-30

1993-05-25

Roy, Upendra

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

428671, C22C 900

Patent

active

052136388

ABSTRACT:
There is provided a composite copper alloy having a copper alloy core and a modified surface layer containing a nitride or carbide film. Alternatively, the modified surface layer may contain a carbo-nitride film. The alloy is formed by reacting a copper alloy with nitrogen, carbon or a nitrogen/carbon mixture at elevated temperatures. The resultant surface layer improves the tribological and mechanical properties of the alloy while maintaining useful electrical conductivity.

REFERENCES:
patent: 4043839 (1977-08-01), Hartline, III et al.
patent: 4352698 (1982-10-01), Hartley et al.
patent: 4412899 (1983-11-01), Beale
patent: 4436560 (1984-03-01), Fujita et al.
patent: 4451302 (1984-05-01), Prescott et al.
patent: 4500605 (1985-02-01), Fister et al.
patent: 4643859 (1987-02-01), Mitomo et al.
patent: 4656499 (1987-04-01), Butt
patent: 4692191 (1987-09-01), Maeda et al.
patent: 4693760 (1987-09-01), Sioshansi
patent: 4756791 (1988-07-01), D'Angelo et al.
patent: 4784974 (1988-11-01), Butt
patent: 4799973 (1989-01-01), Mahulikar et al.
patent: 4961457 (1990-10-01), Watson et al.
Computer Search Rept., Aug. 1992, US-PTO. L1-L9; see L1, L3 and L8.
L1 et al. Appl. Phys. Letts. 60 (1992) 2983, see ref. 5 therein.
Metallurgical Transactions A. vol. 15A. Dec. 1984 entitled "The Wear Behavior of Nitrogen-Implemented Metals" by W. C. Oliver; R. Hutchings and J. B. Pethica, pp. 2221-2229.
The Mit Press, Cambridge, Mass., "Ion Implantation Metallurgy" by M. T. Clapp and L. E. Rehn. pp. 2412-2415.

Affiliated with

Also associated with

Rating

Surface modified copper alloys does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Surface modified copper alloys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surface modified copper alloys will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-894778