Open AccessThe effect of lanthanum substitution on the coercivity field in oxide permanent magnet based on Ba1-xLaxFe12O19
Author(s) -
I Gusti Agung Putra Adnyana,
Komang Ngurah Suarbawa,
Wisnu Ari Adi,
Ni Nyoman Susi Kesuma Wardani,
Laura Laudensia Senly Jalut
Publication year - 2019
Publication title -
international journal of physical sciences and engineering
Language(s) - English
Resource type - Journals
eISSN - 2550-6951
pISSN - 2550-6943
DOI - 10.29332/ijpse.v3n1.281
Subject(s) - coercivity , lanthanum , materials science , remanence , magnet , barium , phase (matter) , lanthanum oxide , analytical chemistry (journal) , diffraction , oxide , magnetization , nuclear magnetic resonance , condensed matter physics , metallurgy , magnetic field , chemistry , inorganic chemistry , electrical engineering , physics , optics , organic chemistry , chromatography , quantum mechanics , engineering
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.