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

043484336

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 an specific surface of about 180 cm.sup.2 /gr and higher and has a composition consisting essentially of a solvent metal alloy selected from the iron-group base alloys consisting of nickel-base, iron-base, and cobalt-base alloys containing by weight about 5% to 35% chromium, the solvent metal alloy having a negative free energy of oxidation ranging up to about 80,000 calories per gram atom of oxygen referred to 25.degree. C. and containing about 5% to 15% by weight of a highly oxidizable solute metal whose negative free energy of oxidation is 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: 3640755 (1972-02-01), Barth
patent: 4031278 (1977-06-01), Patel

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