Sm12Co59Cu6Fe20Zr3 sintered magnets made from as-cast alloy and melt-spun ribbons

Effect of B addition on the microstructure and magnetic properties of melt-spun Sm12Co60−xFe19Cu6Zr3Bx (0≤x≤3) ribbons

“…4d), an obvious grain growth from 50 nm to 100 nm is observed, however, we did not observe the clear cell structures as reported in Ref. [30] for Sm 12 Co 59 Cu 6 Fe 20 Zr 3 ribbons. The black areas correspond to the CaCu 5 -type SmCo 5 phase with zone axis [0 3 1].…”