Structural and magnetic properties of Sr1−xLaxFe12−x(Cu0.5Co0.5)xO19 hexaferrites prepared by the solid-state reaction method

Bulletin of materials science

Duohui Huang²  Qilong Cao²  Shuangjiu Feng¹  Yujie Yang²  Fanhou Wang²  Juxiang Shao²  Mingjie Wan²  Xiansong Liu¹ 

[1]Engineering Technology Research Center of Magnetic Materials, Anhui Province, School of Physics & Materials Science, Anhui University, Hefei 230601, PR China$$Engineering Technology Research Center of Magnetic Materials, Anhui Province, School of Physics & Materials Science, Anhui University, Hefei 230601, PR ChinaEngineering Technology Research Center of Magnetic Materials, Anhui Province, School of Physics & Materials Science, Anhui University, Hefei 230601, PR China$$

[2]Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644007, PR China$$Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644007, PR ChinaComputational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644007, PR China$$

关键词: Hexagonal ferrites;    Laâ€�?�CuCo substitution;    magnetic properties;    X-ray diffraction.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Hexaferrite Sr_1−xLa_xFe_12−x(Cu_0.5Co_0.5)_xO₁₉ (0 â‰�? ð‘�? â‰�? 0.50) magnetic powders and magnets were synthesized by the solid-state reaction method. The phase compositions of magnetic powders were investigated by X-ray diffraction. The single magnetoplumbite phase is obtained in magnetic powders with ð‘�? from 0 to 0.40. At ð‘�? = 0.50, CoFe₂O₄, and ð›�?-Fe₂O₃ were observed. The morphology of the materials was characterized by a field-emission scanning electron microscopy. The particles were hexagonal platelets. Magnetic properties of the materials were measured by a permanent magnetic measure equipment. The remanence of the materials increases with ð‘�? from 0 to 0.50. However, the intrinsic coercivity and magnetic induction coercivity of the materials increase with ð‘�? from 0 to 0.15, and decreases when ð‘�? varies from 0.15 to 0.50. Accordingly, the maximum energy product of the materials first increases with ð‘�? from 0 to 0.35, and then decreases when ð‘�? exceeds 0.35.

【 授权许可】

Unknown