Low‐Temperature Sintering, Densification, and Properties of Z‐type Hexaferrite with Bi2O3 Additives

Abstract

The effect of the addition of Bi2O3 on the densification, low‐temperature sintering, and electromagnetic properties of Z‐type planar hexaferrite was investigated. The results show that Bi2O3 additives can improve the densification and promote low‐temperature sintering of Z‐type hexaferrite prepared by a solid‐state reaction method. The presence of Bi2O3 in the grain boundaries and the generation of Fe2+ degrade the initial permeability of the samples but make the quality factor and cut‐off frequency increase. Various possible mechanisms involved in generating these effects were also discussed.