Binder and lubricant removal from cobalt-rare earth alloys
US3970485A · kind A · utility
3Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 20, 1975 |
| Grant date | Jul 20, 1976 |
| Priority date | — |
| Expiry date | Jan 20, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/0557
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An organic binder or lubricant in a pressed or compacted green body formed of cobalt-rare earth intermetallic particles is substantially removed from the green body before the carbon can react with the rare earth during sintering. This is accomplished by exposing the green body to a temperature of about 100.degree. to 300.degree.C in a hydrogen-containing atmosphere. The hydrogen reacts with the organic binder or lubricant which allows the resulting organic molecules to volatilize from the green body. The green body is then sintered after which it is cooled to room temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.