Abstract
In this research, it was carried out to investigate the effect of Zn substitution on magnetic properties and crystal structures of Ca-La-Co-Zn system ferrite sintered magnets. The results show that M type single phase was obtained from 0–0.2 of Zn substitution in (Ca0.5La0.5)1.1Co0.4-xZnxFe11.6O19 sintered magnets. Magnetization of sintered magnets with same densities increase with an increase the value of Zn substitutions. Coercivity of sintered magnets with same average particle size decrease with an increase the value of Zn substitutions.