Method of forming oxide dispersion strengthened alloys
US8821786B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 15, 2010 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Nov 4, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2916
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of forming an oxide-dispersion strengthened alloy and a method for forming an oxide-alloy powder where the oxide-nanoparticles are evenly distributed throughout the powder. The method is comprised of the steps of forming an oxide-nanoparticles colloid, mixing the oxide-nanoparticles colloid with alloy-microparticles forming an oxide-alloy colloid, drying the oxide-alloy colloid solution to form an oxide-alloy powder, applying pressure to the oxide-alloy powder, and heating the oxide-alloy powder to a sintering temperature. The oxide-nanoparticles are sized to be between 1-10 nanometers in diameter. The ratio of oxide-nanoparticles to alloy-microparticles should be 1-5% by weight. Heating of the oxide-alloy powder can use a spark plasma sintering process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.