Cobalt Doping Effect on Ni-Zn-Cu Ferrites Produced by Reactive Sintering☆

This work deals with the Ni-Zn-Cu ferrites for energy conversion. Studies have already shown the beneficial effects of substituting some of divalent ions by Co 2+. Particularly, it appears that with a small amount of cobalt, it is possible to increase the permeability and to reduce magnetic losses. In this paper, our goal is to report if these properties are still valid with another manufacturing process: the spark plasma sintering. This process can be used for reactive sintering where it is possible to synthesize and to sinter the material in a single step in order to greatly reduce production time.