The Comparison of Magnetic Properties at Room Temperature in RCo5 (R = Y, Sm, and Gd) Nanoflakes Synthesized via Time-Staged HEBM

The microstructure and magnetic properties of bulk crystalline- and ball-milled RCo
₅
intermetallics synthesized via time-staged high-energy ball milling (HEBM) process are presented. The presence of CaCu
₅
type of crystal phase was confirmed in all investigated specimens but for the prolonged milling the emergence of amorphous phase was also detected. The impact of the milling stage on the final crystallites/particles size and shape is evident. The significant influence of HEBM on the enhancement of the coercivity, magnetic anisotropy, and maximum energy product was found. The noticeable dependence of magnetic properties on rare earth type and pulverization time was observed.