Process for making titanium, zirconium and hafnium-based metal particles for powder metallurgy
US4470847A · kind A · utility
17Cited by
27References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1982 |
| Grant date | Sep 11, 1984 |
| Priority date | — |
| Expiry date | Nov 8, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F9/023
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process to produce passified Group IVb transition metal based metal particles having a controlled particle size distribution is disclosed which produces particles suitable for metallurgy usage without additional particle size reduction. Such particles are also substantially free of halides and are produced at temperatures considerably below that of arc melting temperatures of Group IVb transition metals and alloys based thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.