Specialized metallurgical processes – compositions for use therei – Compositions – Loose particulate mixture containing metal particles
Patent
1993-11-15
1995-11-28
Wyszomierski, George
Specialized metallurgical processes, compositions for use therei
Compositions
Loose particulate mixture containing metal particles
148432, 420496, C22C 906
Patent
active
054703735
ABSTRACT:
Oxidation resistant particles composed of copper and at least one metal having a valence of +2 or +3 and having an intermediate lattice energy for the metal in its hydroxide form. The metal is selected from nickel, cobalt, iron, manganese, cadmium, zinc, tin, magnesium, calcium and chromium. In one embodiment, the phases of copper and at least one metal in the particles are separate and the concentration of the metal is greater near the surface of the particles than inwardly thereof. Process for making the oxidation resistant copper particles includes the steps of dissolving a copper salt and a salt of at least one of the metals in a suitable solvent or diluent; forming primary particles of copper and at least one metal in basic form by mixing a base and the salt solution; separating, washing and drying the primary particles; reducing the primary particles to metallic form; and heat treating the particles in metallic form at an elevated temperature.
REFERENCES:
patent: 1421471 (1922-07-01), Heskett
patent: 1477797 (1923-12-01), Adams
patent: 3045331 (1962-07-01), Ang et al.
patent: 3322547 (1967-05-01), Quaas et al.
patent: 3489548 (1970-01-01), Adler
patent: 4368143 (1983-01-01), de Pous
patent: 5125962 (1992-06-01), Krentscher
patent: 5207821 (1993-05-01), Ikenoue et al.
patent: 5336342 (1994-08-01), Ashok
Ding et al., "Oxidation Resistant High Conductivity Copper Films", printed n Appl. Phys. Lett. 64 (21), May 23, 1994, pp. 2897-2899.
Edelstein Alan S.
Harris Vincent G.
Kaatz Forrest H.
Kap George
McDonnell Thomas E.
The United States of America as represented by the Secretary of
Wyszomierski George
LandOfFree
Oxidation resistant copper does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Oxidation resistant copper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxidation resistant copper will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2010416