The effect of lanthanum substitution on the coercivity field in oxide permanent magnet based on Ba1-xLaxFe12O19

(x = 0; 0.02; 0.04; and 0.08)

  • I Gusti Agung Putra Adnyana Department of Physics, University of Udayana, Bali, Indonsia
  • Komang Ngurah Suarbawa Department of Physics, University of Udayana, Bali, Indonsia
  • Wisnu Ari Adi National Nuclear Energy Agency (BATAN), Serpong, Indonesia
  • Ni Nyoman Susi Kesuma Wardani Department of Physics, University of Udayana, Bali, Indonsia
  • Laura Laudensia Senly Jalut Department of Physics, University of Udayana, Bali, Indonsia
Keywords: Ba1-xLaxFe12O19, coercivity, hexaferrite, permanent magnet, substitution

Abstract

Synthesis and characterization of Ba1-xLaxFe12O19 based permanent magnet samples with variations in composition (x = 0; 0.02; 0.04; and 0.08) has been done. The method used is a solid state reaction. The phase formation of the sample Ba1-xLaxFe12O19 was carried out at 1200oC for 2 hours. The results of the X-ray diffraction pattern analysis show that all sample compositions have a single phase BaFe12O19. The results of magnetic properties testing using VSM showed that the best coercivity field and remanent magnetization values were obtained at the composition of x = 0.04. The effect of substitution of lanthanum into the barium atom can increase the number of magnetic domains which are indicated by the increase in the coercivity value of the material along with the increasing composition of x. It was concluded that the composition of Ba1-xLaxFe12O19 is a permanent magnet with the best product energy.

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References

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Published
2019-04-30
How to Cite
Adnyana, I. G. A. P., Suarbawa, K. N., Adi, W. A., Wardani, N. N. S. K., & Jalut, L. L. S. (2019). The effect of lanthanum substitution on the coercivity field in oxide permanent magnet based on Ba1-xLaxFe12O19. International Journal of Physical Sciences and Engineering, 3(1), 42-49. https://doi.org/10.29332/ijpse.v3n1.281
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Articles