Obtention of anisotropic barium hexaferrite from a siderurgical waste

Authors

  • B. Aragón Instituto de Materiales Reactivos (IMRE), Ciudad de La Habana
  • O. Ares Instituto de Materiales Reactivos (IMRE), Ciudad de La Habana
  • O. Montesino Centro de Investigaciones Metalúrgicas (GIME) Ciudad de La Habana
  • J. Dufour Universidad Complutense de Madrid
  • C. Hart Instituto de Materiales Reactivos (IMRE), Ciudad de La Habana
  • J. Balmaseda Centro Nacional de Investigaciones Científicas (CENIC), Ciudad de La Habana
  • A. Formoso Centro Nacional de Investigaciones Metalúrgicas (CENIM) Madrid
  • A. Cores Centro Nacional de Investigaciones Metalúrgicas (CENIM) Madrid

DOI:

https://doi.org/10.3989/revmetalm.2002.v38.i2.388

Keywords:

Barium hexaferrite, Rolling scale, Anisotropy

Abstract


We report the production of anisotropic permanent magnets of barium hexaferrite using rolling scale (siderurgical waste) as starting material. A facility was designed and constructed and further tested for the industrial production of the anisotropic permanent magnets. The characteristics of both the ferrite powder and the compacts resulting of pressuring and sintering processes are described. In different stages parameters as grinding time and temperature were controlled. The samples were structurally and magnetically characterized. X-ray diffraction and Mössbauer spectroscopy were used for phase identification, while scanning electron microscopy allowed the determination of the average grain size. The magnetic behavior was also measured. This work proves that the ferric oxide produced from rolling scale of the national siderurgical industry can be used to obtain anisotropic material. Initial technological parameters of the process are proposed.

Downloads

Download data is not yet available.

Downloads

Published

2002-04-30

How to Cite

Aragón, B., Ares, O., Montesino, O., Dufour, J., Hart, C., Balmaseda, J., Formoso, A., & Cores, A. (2002). Obtention of anisotropic barium hexaferrite from a siderurgical waste. Revista De Metalurgia, 38(2), 94–99. https://doi.org/10.3989/revmetalm.2002.v38.i2.388

Issue

Section

Articles

Most read articles by the same author(s)

<< < 1 2 3 4 > >>