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    • Keywords


      Hexagonal ferrites; La–CuCo substitution; magnetic properties; X-ray diffraction.

    • Abstract


      Hexaferrite Sr1−xLaxFe12−x(Cu0.5Co0.5)xO19 (0 ≤ 𝑥 ≤ 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 𝑥 from 0 to 0.40. At 𝑥 = 0.50, CoFe2O4, and 𝛼-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 𝑥 from 0 to 0.50. However, the intrinsic coercivity and magnetic induction coercivity of the materials increase with 𝑥 from 0 to 0.15, and decreases when 𝑥 varies from 0.15 to 0.50. Accordingly, the maximum energy product of the materials first increases with 𝑥 from 0 to 0.35, and then decreases when 𝑥 exceeds 0.35.

    • Author Affiliations


      Yujie Yang1 Fanhou Wang1 Juxiang Shao1 Duohui Huang1 Xiansong Liu2 Shuangjiu Feng2 Mingjie Wan1 Qilong Cao1

      1. Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644007, PR China
      2. Engineering Technology Research Center of Magnetic Materials, Anhui Province, School of Physics & Materials Science, Anhui University, Hefei 230601, PR China
    • Dates

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

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