Production of ultrafine metal carbide particles utilizing polymeric feed materials
US7776303B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2006 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Dec 12, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/5454
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The production of ultrafine metal carbide powders from polymeric powder and metallic precursor powder starting materials is disclosed. In certain embodiments, the polymeric powder may comprise polypropylene, polyethylene, polystyrene, polyester, polybutylene, nylon, polymethylpentene and the like. The metal precursor powder may comprise pure metals, metal alloys, intermetallics and/or metal-containing compounds such as metal oxides and nitrides. In one embodiment, the metal precursor powder comprises a silicon-containing material, and the ultrafine powders comprise SiC. The polymeric and metal precursor powders are fed together or separately to a plasma system where the feed materials react to form metal carbides in the form of ultrafine particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.