Magnetic properties of Sm-Co-Fe-Cu-Zr alloys

To investigate potential changes in the magnetic characteristics of phases in the process of annealing of dispersion-hardening alloys of the Sm(Co, Fe, Cu, Zr) type, the dependence is studied of saturation and magnetic crystal anisotropy constants of alloys of the Sm2(Co, T)17 and Sm(Co, T)5 type on the concentration of elements T=Fe, Cu, Zr. The presence of zirconium in the above said alloys is shown to increase the anisotropy constants of the 2-17 type alloys and to reduce the magnetic saturation and anisotropy constants of the 1-5 type alloys. A supposition is made that an increase in the coercitive force of the alloy in the process of low-temperature annealing is connected with the mentioned changes in the phase characteristics