Method of making a nanomatrix powder metal compact
US9079246B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2009 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Jun 5, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C32/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of making a powder metal compact is disclosed. The method includes forming a coated metallic powder comprising a plurality of coated metallic powder particles having particle cores with nanoscale metallic coating layers disposed thereon, wherein the metallic coating layers have a chemical composition and the particle cores have a chemical composition that is different than the chemical composition of the metallic coating layers. The method also includes applying a predetermined temperature and a predetermined pressure to the coated powder particles sufficient to form a powder metal compact by solid-phase sintering of the nanoscale metallic coating layers of the plurality of coated powder particles to form a substantially-continuous, cellular nanomatrix of a nanomatrix material, a plurality of dispersed particles dispersed within the cellular nanomatrix and a solid-state bond layer extending throughout the cellular nanomatrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.