Plasma-assisted heat treatment
US7638727B2 · kind B2 · utility
4Cited by
187References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 2003 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Jul 11, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D1/74
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods and apparatus for plasma-assisted heat treatments are provided. The method can include initiating a heat treating plasma within a cavity (14) by subjecting a gas to electromagnetic radiation in the presence of a plasma catalyst (70), heating the object by exposing the object to the plasma, and maintaining exposure of the object to the plasma for a sufficient period to alter at least one material property of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.