Stabilization of pyrophoric ferromagnetic acicular metal particl

Details Stabilization of pyrophoric ferromagnetic acicular metal particl Stabilization of pyrophoric ferromagnetic acicular metal particl

1982-04-16

1983-12-13

Sheehan, John P.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 05BA, 148 635, 1481261, 427127, 427216, C22C 104

Patent

active

044203306

ABSTRACT:
A process for stabilizing pyrophoric acicular metal particles consisting essentially of iron, by reaction with oxygen-containing gases in two stages, wherein, in the first stage, up to 1/3 of the passivating layer present in the final state is formed at from 25.degree. to 45.degree. C. and, in a subsequent second stage, the remainder of the passivating layer is formed at from 50.degree. to 70.degree. C.

REFERENCES:
patent: 3520676 (1970-07-01), Stahr
patent: 3623859 (1971-11-01), Aldridge
patent: 3767477 (1973-10-01), McCabe et al.
patent: 3926617 (1975-12-01), Beggs et al.
patent: 3967986 (1976-07-01), Rau et al.
patent: 4155748 (1979-05-01), Steck et al.
patent: 4207092 (1980-06-01), Berry
patent: 4251592 (1981-02-01), Takedoi et al.
Hollemann-Wiberg, Lehrbuch der anorganischen Chemie, 1964, pp. 398-402.

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