An investigation on the microstructures and magnetic properties of the Sr0.35-xBaxCa0.30La0.35Fe11.71Co0.29O19 hexaferrites

作者：Yang Yujie^*; Liu Xiansong

来源：Journal of Magnetism and Magnetic Materials, 2014, 368: 360-363.

DOI：10.1016/j.jmmm.2014.05.052

• Hexaferrites
• La-Co substitution
• Barium content
• Magnetic properties
• X-ray diffraction

M-type hexaferrite Sr0.35-xBaxCa0.30La0.35Fe11.71Co0.29O19 (0 <= x <= 0.35) magnetic powders and magnets were prepared by the solid-state reaction. The phase compositions of the magnetic powders were investigated by X-ray diffraction. X-ray diffraction patterns show that the hexagonal single phase is obtained in all samples. The micrographs of the magnets were observed by a held emission scanning electron microscopy. All magnets have formed hexagonal structures and the particles are distributed evenly. Magnetic properties or the magnets were measured by a magnetic properties test instrument. The remanence, intrinsic coercivity, magnetic induction coercivity and maximum energy product of the magnets continuously decrease with increasing barium content (x).

• 出版日期2014-11
• 单位安徽大学