Magnetic particles composed mainly of FeC and a process for preparing same
US4931198A · kind A · utility
5Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1989 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | Sep 18, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/42
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Particles containing FeC are prepared by mixing (a) a boron compound or alkaline earth metal compound with (b) iron oxyhydroxide or iron oxide particles, or coating the former compound (a) to the latter particles (b), and then carburizing the mixture or coated particles with a carburizing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.