Magnetic properties, phase evolution, and microstructure of melt spun Sm(Co0.97Ti0.03)xCy (x=5–9; y=0–0.1) ribbons Original Research Article

Magnetic properties, phase evolution, and microstructure of melt spun Ti-substituted Sm(Co0.97Ti0.03)xCy ribbons are studied. The main phases existed in Sm(Co0.97Ti0.03)x ribbons are 1:5 phase for x=5–5.5; 1:5 and 1:7 phases for x=6; 1:7 phase for x=6.5–7.5; 1:7 and 2:17 phases for x=8; and only 2:17 phase for x=8.5–9. Furthermore, a slight C addition could effectively refine the grain size, resulting in the further improvement of the magnetic properties. For the Sm–lean Sm(Co, Ti)xCy (x=8–9) ribbons, higher Ti and C contents are required to improve the magnetic properties.