Bodies including passivated metal particles

Details Bodies including passivated metal particles Bodies including passivated metal particles

1974-12-26

1976-06-22

Satterfield, Walter R.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148103, 148104, 75 5AA, H01F 102

Patent

active

039649393

ABSTRACT:
Long term protection against oxidation is provided to fine particles of oxidizable metals and metallic alloys by treating the essentially oxide-free particles with a solution of certain organic materials in a nonreactive organic solvent. These organic materials are ureas, thioureas, isocyanates or isothiocyanates with at least one organic substituent each containing at least two carbons. Particles of both hard and soft magnetic metals and alloys have been protected by this treatment.

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patent: 3785881 (1974-01-01), Naastepad et al.
Robbins, M; Stabilization of ... Iron Particles by ... Polymerization, J. Electrochem. Soc., Jan. 1970, pp. 137-139.
Hoar, T; Inhibition by ... Thioureas ... Dissolution of Mild Steel, J. Appl. Chem., Nov. 1953, pp. 502-513.

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