Materials Research for Advanced Inertial Instrumentation. Task 3. Rare Earth Magnetic Material Technology as Related to Gyro Torquers and Motors.
Abstract
Hot isostatic pressing (HIP) of SmCo5 magnets can now be considered a viable alternative to sinter technology. Qualities of magnets are usually better. Even in as-HIPed condition the magnetic properties compare favorably with commercial sintered magnets. Thermal optimization following the HIP procedure further improves the properties. Unique in these magnets, as opposed to sintered magnets, are the consistently high H subscript ci values obtained over the entire composition range of 35.5 to 37.0 weight percent Sm. It was interesting to note that the higher Sm compositions showed very little degradation of coercivity on slow cooling from aging temperature.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1980
- Accession Number
- ADA097818
Entities
People
- Debanik Das
- E. Wettstein
- K. Kumar
Organizations
- Charles Stark Draper Laboratory