Influence of V2O5 addition on the grain growth and magnetic properties of Mn–Zn high permeability ferrites

Effects of V2O5 addition on the grain growth and magnetic properties of a high permeability manganese–zinc (Mn–Zn) ferrite were studied. The results showed that small additions of V2O5 of <0.03 wt% increased the permeability of Mn–Zn ferrites while higher amounts decreased it. The permeability of these samples showed pronounced secondary maxima in permeability versus V2O5 content. V2O5 up to a certain percentage increased Curie temperature, saturation magnetic flux density and then decreased it, and also decreased specimen shrinkage noticeably.