Crystallographic Texture in SrM Hexaferrite Doped with Zn2+ Ions

Ming Lin Jin; Cun Fu Zhu; Zhan Yong Wang; Qi Zhong Chen; Ke Jia Liu

doi:10.4028/www.scientific.net/AMR.146-147.75

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Crystallographic Texture in SrM Hexaferrite Doped with Zn²⁺ Ions

Abstract:

The Sr0.75La0.25Fe11.75-xCo0.25ZnxO19 hexaferrites are prepared by the ceramic process. Influences of the substitution of Zn2+ ions on crystallographic texture have systematically been investigated by pole figure analysis. The (008) and (107) pole figure shows that the pole intensities are axisymmetric at the center of c axis. With the increase of x, the lattice parameters a and c increase gradually till x=0.15. Excessive Zn2+ addition induces the much coarse grain. The easy-axis alignment of grains decreases from 77.5% to 75.5% for the substitution of Zn2+ ions from 0 to 0.25. When Zn2+ content was from 0 to 0.25, the magnetic properties of Br and (BH)max were increased, while Hcb and Hcj were decreased till x>0.2.