Journal of Magnetics

The Korean Magnetics Society (한국자기학회)
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Effect of La3+ and Ti4+ Ions on the Magnetic Properties of Barium Hexaferrite Powders Synthesized Using Sol-Gel Method

  • Ertus, Emre Burak (KTO Karatay University, Materials Science and Nanotechnology Engineering) ;
  • Yildirim, Serdar (Dokuz Eylul University, Electronic Materials Production and Application Centre) ;
  • Celik, Erdal (Dokuz Eylul University, Electronic Materials Production and Application Centre)
  • Received : 2015.10.07
  • Accepted : 2016.10.07
  • Published : 2016.12.31
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Abstract

Doped and undoped barium hexaferrite powders ($BaFe_{12}O_{19}$, $Ba_{0.7}Ti_{0.3}Fe_{12}O_{19}$ and $Ba_{0.7}La_{0.3}Fe_{12}O_{19}$) were produced by the sol-gel method. The effects of substituting elements were studied in terms of the magnetic properties of barium hexaferrite powders. The magnetic properties were remarkably changed by the substitution of $La^{3+}$ and $Ti^{4+}$ ions for the $Ba^{2+}$ ion and were accompanied by oxygen deficiency in the $BaFe_{12}O_{19}$. Coercivities ($H_C$) from 4200 to 5100 Oe, remanences ($M_R$) from 22 to 49 emu/g and saturation magnetizations ($M_S$) from 41 to 73 emu/g were obtained for different samples. The obtained results were discussed in detail.

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References

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