Method of Treating Sm2Co17-Based Permanent Magnet Alloys.
Abstract
The reversible temperature coefficient of magnetization of a permanent magnet alloy over the temperature range from -50 degrees C to +150 degrees C is lowered by heat treating the alloy in a noble gas atmosphere or in a vacuum by the steps of (a) heating the alloy at about 1150 degrees C for 1.5 hours (b) quenching the alloy in ice water, (c) heating the alloy at about 940 degrees C for 2 hours, (d) lowering the temperature to about 700 degrees C and heating for one hour, (e) lowering the temperature to about 600 degrees C and heating for one hour, (f) lowering the temperature to about 500 degrees C and heating for 2 hours, and (g) lowering the temperature to about 400 degrees C and heating for 10 hours. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 12, 1980
- Accession Number
- ADD007631
Entities
People
- Arthur Tauber
- Frederick Rothwarf
- Robert L. Bergner
Organizations
- United States Army