Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1976-01-19
1978-01-17
Hunt, Brooks H.
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
75171, 75170, 75206, 75246, B22F 300
Patent
active
040690431
ABSTRACT:
Shaped magnetic articles made from powder material are provided containing about 70 to 85% nickel, more than 10% iron, one or more of 0 to 5% chromium, 0 to 6% molybdenum, 0 to 6% copper, 0 to 2% manganese, 0 to 1% titanium and 0 to 1% niobium, containing also about 0.1 to 2.0% of a refractory metal oxide, and having a unique combination of magnetic and physical properties. A process for making the shaped magnetic articles from metal powder and refractory oxide is also disclosed by which the metal and refractory oxide powder are blended, sintered and worked to provide substantially homogeneous articles having at least 99% theoretical density.
REFERENCES:
patent: 3440042 (1969-04-01), Kaufmann
patent: 3661570 (1972-05-01), Moss
patent: 3739445 (1973-06-01), Gabriel et al.
patent: 3814598 (1974-06-01), Gabriel et al.
patent: 3895942 (1975-07-01), Morse
Carpenter Technology Corporation
Hunt Brooks H.
Jay Edgar N.
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