Structure and Magnetic Properties of Sm(CobalFexTi0:05)9.66 Alloys (x = 0-0.57) and Sm(Co0.66Fe0.19Ti0.05Cu0.1)9.66 Magnets
Abstract
Potential permanent magnetic materials with compositions of Sm(Co(bal)Fe(x)Ti(0.05)9.66 (x = 0-0.57) have been synthesized and characterized in the temperature range of 10-1473 K and at fields up to 5 T. The experimental results show that near single phase materials with Th(2)Ni(17) structure were formed in Sm(Co(bal)Fe(x)Ti(0.05)9.66 alloys after splat quenching from 1473 K. The Ti atoms play an important role in stabilizing the Th(2)Ni(17) structure for the 3d (transition metal) rich nonstoichiometric 2-17 compounds. Encouraging hard magnetic properties were observed in alloys. Both sintered and melt-spun powder magnets were fabricated. A strong domain wall pinning behavior was observed. The effect of different heat treatment conditions on the phase formation alloys was also discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 2002
- Accession Number
- ADA512051
Entities
People
- B. M. Ma
- F. Johnson
- M. E. Mchenry
- M. Q. Huang
- R. Swaminathan
- R. T. Fingers
- V. R. Ramanan
- Z. Turqut
Organizations
- Carnegie Mellon University