Plasma surface treatment using dielectric barrier discharges
US8263178B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2007 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Mar 15, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/2465
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for the in-flight surface treatment of powders using a Dielectric Barrier Discharge Torch operating at atmospheric pressures or soft vacuum conditions is described herein. The process comprising feeding a powder material into the Dielectric Barrier Discharge Torch yielding powder particles exhibiting a reduced powder agglomeration feature; in-flight modifying the surface properties of the particles; and collecting coated powder particles. An apparatus for surface treating micro- and nanoparticles comprising a Dielectric Barrier Discharge Torch operating at atmospheric pressure or soft vacuum conditions is also described herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.