Flame spray powder

Details Flame spray powder Flame spray powder

1981-04-06

1982-09-07

Beck, Shrive P.

Coating processes

Roller applicator utilized

75251, B05D 110

Patent

active

043484344

ABSTRACT:
A free-flowing self-bondable flame spray powder derived from an atomized alloy powder is provided in which the particles are characterized by aspherical shapes and have an average particle size within the range of about plus 400 mesh to minus 100 mesh. The aspherically shaped powder is further characterized by a specific surface of about 180 cm.sup.2 /gr and higher and has a composition consisting essentially of a solvent metal of melting point in excess of about 1100.degree. C. whose negative free energy of oxidation ranges up to about 80,000 calories per gram atom of oxygen referred to 25.degree. C. The solvent metal contains at least one highly oxidizable solute metal in an amount of at least about 3% by weight, the oxidizable metal having a negative free energy of oxidation of at least about 100,000 calories per gram atom of oxygen referred to 25.degree. C.

REFERENCES:
patent: 3436248 (1969-04-01), Dittrich et al.
patent: 4031278 (1977-06-01), Patel
patent: 4166736 (1979-09-01), Bewley
patent: 4168967 (1979-09-01), Sridhar et al.

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