Method for producing dispersion strengthened metal powders
US4647304A · kind A · utility
29Cited by
9References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1985 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | May 2, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S75/956
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed is a method for mechanically compositing metal powders to produce composite metal powder material having a substantially homogeneous dispersion of refractory particles dispersed throughout a metallic matrix and being substantially free of oxide scale. Preferably the composite powder has a mean particle size less than about 50 microns and a mean grain size of less than about 0.5 microns which method comprises milling the metal powders with one or more refractory compounds in the presence of a cryogenic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.