MECHANOSYNTHESIS, CRYSTAL STRUCTURE, MAGNETIC AND ABSORPTION PROPERTIES OF Al SUBSTITUTED BaFe12O19

Authors

  • Didin S. Winatapura Center for Science and Technology of Advanced Materials, National Nuclear Energy Agency (BATAN), Kawasan Puspiptek, Serpong, Tangerang 15314 - Indonesia
  • Deswita Deswita Center for Science and Technology of Advanced Materials, National Nuclear Energy Agency (BATAN), Kawasan Puspiptek, Serpong, Tangerang 15314 - Indonesia
  • Adel Fisli Center for Science and Technology of Advanced Materials, National Nuclear Energy Agency (BATAN), Kawasan Puspiptek, Serpong, Tangerang 15314 - Indonesia
  • Wisnu Ari Adi Center for Science and Technology of Advanced Materials, National Nuclear Energy Agency (BATAN), Kawasan Puspiptek, Serpong, Tangerang 15314 - Indonesia

DOI:

https://doi.org/10.11113/jt.v81.13567

Keywords:

BaFe12O19, mechano-synthesis, reflection loss, absorption, crystal structure, magnetic properties

Abstract

The Aluminums (Al) substituted on M-type barium ferrite (BaFe12O19) is one of the magnetic materials, which can be applied to the microwave band working at high frequencies. The purpose of this paper is to investigate the effect of Al substitution for Fe3+ ions on the structure, magnetic and absorption behavior of M-type barium ferrite. The sample was prepared by mechano-synthesis using high-energy milling (HEM). In this research, Fe ion in BaFe12O19 was substituted by Al ion to form BaFe12-xAlxO19 for x = 0.0,BaFe10Al2O19 for x = 2.0 and BaFe8Al4O19 for x = 4.0 which is called as BAl-0, BAl-2 and BAl-4 sample, respectively. The stainless steel balls were used for the milling with a ball-to-powder sample ratio of 5. The mixing and milling for each the sample was conducted for 5 hours in ethanol medium and dried at 100oC in oven for 24 hours and then followed by heat treatment at 1100°C during 1h in the atmosphere media. The sample was characterized using X-rays diffractometer (XRD), Scanning Electron Microscope (SEM), Vibrating Sample Magnetometer (VSM) and Vector Network Analyzer (VNA). The result indicates that the addition of Al ion lead to the change cell parameters, volume, and the particles size. The magnetic behavior such as magnetic coercivity (Hc), magnetization saturation (Ms) and remanent (Mr) changed significantly with the substitution of Al ions. The optimum reflection loss (RL) is found to be –35dB at 14GHz for BaFe10Al2O19 (BAl-2) sample. It is shown that Al substitutions change the particle size, ferromagnetic resonant frequency, and structural and magnetic behavior of M-type barium ferrite.

Author Biographies

  • Didin S. Winatapura, Center for Science and Technology of Advanced Materials, National Nuclear Energy Agency (BATAN), Kawasan Puspiptek, Serpong, Tangerang 15314 - Indonesia

    2008-2010 : Superconducting Materials

    2010 - Now : Nano magnetic materials

  • Deswita Deswita, Center for Science and Technology of Advanced Materials, National Nuclear Energy Agency (BATAN), Kawasan Puspiptek, Serpong, Tangerang 15314 - Indonesia
    2010 - Now : Polimer Materials
  • Adel Fisli, Center for Science and Technology of Advanced Materials, National Nuclear Energy Agency (BATAN), Kawasan Puspiptek, Serpong, Tangerang 15314 - Indonesia

    2008-2010 : anorganic chemistry

    2010 - Now : Nano magnetic materials

  • Wisnu Ari Adi, Center for Science and Technology of Advanced Materials, National Nuclear Energy Agency (BATAN), Kawasan Puspiptek, Serpong, Tangerang 15314 - Indonesia

    2008-2010 : Superconducting Materials

    2010 - Now : Nano magnetic materials

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Published

2019-08-20

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Section

Science and Engineering

How to Cite

MECHANOSYNTHESIS, CRYSTAL STRUCTURE, MAGNETIC AND ABSORPTION PROPERTIES OF Al SUBSTITUTED BaFe12O19. (2019). Jurnal Teknologi (Sciences & Engineering), 81(5). https://doi.org/10.11113/jt.v81.13567