Flame spray powder
US4348433A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1981 |
| Grant date | Sep 7, 1982 |
| Priority date | — |
| Expiry date | Apr 6, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C4/067
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.