Silicon-containing iron powders

Details Silicon-containing iron powders Silicon-containing iron powders

1998-04-15

1999-11-30

Killos, Paul J.

Metal treatment

Stock

Magnetic

148306, H01F 104

Patent

active

059935693

ABSTRACT:
The invention relates to a method for preparing silicon-containing iron powders by thermal decomposition of a gas mixture comprising iron pentacarbonyl and, as a volatile silicon compound, a silane or a halogen-free organosilane in which the gas mixture flows through a heated reaction chamber and heating of the gas mixture is effected by thermal conduction. The silicon-containing iron powders obtained are distinguished by a particularly low impurity element content. The silicon-containing iron powders can be used for the fabrication of cores, magnets and radar-absorbing materials.

REFERENCES:
patent: 4468474 (1984-08-01), Gupta et al.
patent: 4558017 (1985-12-01), Gupta et al.
Frurip et al., J. of Non-Crystalline Solids, 68, 1984, pp. 1-10.
X. Gao, J. of Inorganic Materials, vol. 7, No. 4, abstract only Dec. 1992, pp. 429-434.
Syrkin et al., Soviet Powder Metallurgy and Metal Ceramics, 1970, pp. 447-449.
Chem. Abst., vol. 107, No. 10, Sep. 7, 1987, AN 79913, XP 002075742.

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