Microstructure and Physical Characteristics of Novel Z-Type Hexaferrite with Cu Modification

The influence of Cu modification of physical characteristics of Co₂Z hexaferrites, which have stoichiometric compositions of Ba₃Co_{2(1 – x)}Cu_2x Fe₂₄O₄₁ (x 0.50), was investigated. The results show that the microstructure of modified hexaferrites is improved greatly. In the range of solid solubility of Cu, the cell parameters (a and c) of Co₂Z hexaferrites with Cu modification show a reverse change, a of hexagonal parameter decreases and c of axial parameter increases. The saturation magnetization, remnant magnetization, hysteresis behavior, initial permeability and quality factor as well as its possible affecting factors of Cu modified Co₂Z hexaferrites are also discussed in this paper.