Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1979-07-02
1981-05-19
Rosenberg, P. D.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75108, 75251, B22F 100
Patent
active
042683025
ABSTRACT:
Improved processes and products based on the discovery that metal atoms in complex relationship with complexing agents can be used to moderate the formation of organic salt seed crystals which promote an exceptionally well-ordered acicular growth of organometallic salts such as oxalates of the metal. Some acicular, i.e., needle-like, products have particular utility for being reduced to ferromagnetic metal particles which retain a surprisingly large degree of acicularity and possess extraordinarily favorable properties for use in magnetic recording applications.
REFERENCES:
patent: 4059463 (1977-11-01), Aonuma
patent: 4061824 (1977-12-01), Deffeyes
patent: 4133676 (1979-01-01), Oshimura
patent: 4133677 (1979-01-01), Matsui
patent: 4141763 (1979-02-01), Aonuma
patent: 4155748 (1979-05-01), Steck
patent: 4165232 (1979-08-01), Jaeckh
Deffeyes Robert J.
Tyler Wesley R.
Cesari Robert A.
Graham Magnetics Incorporated
Kehoe Andrew F.
McKenna John F.
Rosenberg P. D.
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