Publicado

2009-07-01

MAGNETIC AND STRUCTURAL STUDIES OF (Sn, Ni –Sn) SUBSTITUTED BARIUM HEXAFERRITES SYNTHESIZED BY BALL MILLING

Palabras clave:

Magnetic materials, Magnetic properties, Nanocrystalline materials, substituted hexaferrites. (es)

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Autores/as

  • ALVARO GONZÁLEZ-ANGELES Facultad de Ingeniería, Universidad Autónoma de Baja California, México
  • ANNA GRUSKOVÁ Faculty of Electrical Engineering and Information Technology, Slovak University of Technology, Bratislava, Slovakia
  • JOZEF SLÁMA Faculty of Electrical Engineering and Information Technology, Slovak University of Technology, Bratislava, Slovakia
  • JORGE LÓPEZ CUEVAS Cinvestav-Saltillo, Coahuila, México
  • ISRAEL SAUCEDA-MEZA Facultad de Ingeniería, Universidad Autónoma de Baja California, México
  • JESÚS MÁRQUEZ GONZÁLEZ Facultad de Ingeniería, Universidad Autónoma de Baja California, México
  • NUN PITALÚA-DÍAZ Departamento de Ingeniería Industrial-Programa ingeniería Mecatrónica, Universidad de Sonora, México
Samples of BaFe12-2x(SnSn)xO19 and BaFe12-2x(NiSn)xO19 were processed by high energy milling with 0 ≤ x ≤ 0.4 and 0 ≤ x ≤ 0.3 respectively. Sn2+-Sn4+ mixture considerably improved the saturation magnetization, Ms, (from 60.9 to 66.15 A.m2/kg) and diminished quickly the intrinsic coercivity, Hci, (381.1-72.33 kA/m) to suitable values for high-density magnetic recording applications, with low substitution values. On the other hand, the Ni2+-Sn4+ mixture also decreased the coercivity rapidly (diminution ~ 75%) however without enhancing the saturation magnetization. The shown differences on magnetic properties were mainly due to both magnetic nature of divalent ion and secondary phase presence. Mixtures with Sn2+ as partner ion diminished markedly to Tc (~21%).

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[1]
A. GONZÁLEZ-ANGELES, «MAGNETIC AND STRUCTURAL STUDIES OF (Sn, Ni –Sn) SUBSTITUTED BARIUM HEXAFERRITES SYNTHESIZED BY BALL MILLING», DYNA, vol. 76, n.º 159, pp. 61–65, jul. 2009, Accedido: 19 de septiembre de 2026. [En línea]. Disponible en: https://revistas.unal.edu.co/index.php/dyna/article/view/13041