Method for densification and spheroidization of solid and solution precursor droplets of materials using microwave generated plasma processing
US9206085B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2014 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | May 19, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/0898
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for processing feed material to produce dense and spheroidal products is described. The feed material is comprised of powder particles from the spray-drying technique or solution precursor droplets from ceramic or metallic materials. The feed material is processed using plasma generated from a microwave. The microwave plasma torch employed is capable of generating laminar flow during processing which allows for the production of spheroidal particles with a homogenous materials distribution. This results in products having improved thermal properties, improved corrosion and wear resistance and a higher tolerance to interface stresses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.