Complex permeability of Fe-deficient Ni–Cu–Zn ferrites

Preparation of high-permeability NiCuZn ferrite.

Appropriate addition of CuO/V2O5 and the reduction of the granularity of the raw materials particle decrease the sintering temperature of NiZn ferrite from 1200 degrees C to 930 degrees C. Furthermore, the magnetic properties of the NiZn ferrite prepared at low temperature of 930 degrees C is superior to that of the NiZn ferrite prepared by sintering at high temperature of 1200 degrees C becaus...

Complex Permeability and Dielectric Behaviors of Eu Doped Ni-zn Ferrites

The Manufacture of High Permeability Mn-Zn Ferrites by Atmospherical Protect

For the manufacture of high permeability Mn-Zn ferrite cores, the zinc loss from the surface of sintering cores causes poor yield rate of final products. This experiment uses the atmospherical protection to reduce the evaporation of zinc. The control of the oxygen partial pressure and flow rate precisely can reduce the zinc loss about 20% to 35%, but it is not enough to get a good distribution ...

Fine Powders of Co-Mn Cation Deficient Spinel Ferrites for Magneto-Optical Pigments

The Dependence of Magnetic and Mechanical Properties on Composition and Processing in Air Fired MnZn Ferrites

The relationship between magnetic and mechanical properties has been studied as a function of composition, atmosphere and temperature for a series of MnZn ferrites. When processed in air, strength and permeability are critically dependent upon the formation of Md+ and ~ e ' + on sintering, and residual stresses introduced via subsequent (re)oxidation upon cooling. In Fe deficient femtes, proper...