EFFECT OF NiO AND CoO ADDITIVES ON CRYSTAL STRUCTURE AND MAGNETIC PROPERTIES IN MANUFACTURING MAGNETS BaFe12O19

Volume 8, Issue 1, February 2023     |     PP. 1-14      |     PDF (1467 K)    |     Pub. Date: March 19, 2023
DOI: 10.54647/materials430216    88 Downloads     161205 Views  

Author(s)

Ramlan, Department of Physics, Faculty Science and Mathemathic, Sriwijaya University, South Sumatera 30862, Indonesia
Marzuki Naibaho, Research Center for Advanced Materials (PRMM), Nasional Research and Inovation Agency (BRIN), Serpong, South Tangerang, Indonesia
Endah Puspita, Department of Physics, Faculty Science and Mathemathic, Sriwijaya University, South Sumatera 30862, Indonesia
Yahri Seftiadi, Department of Physics, Faculty Science and Mathemathic, Sriwijaya University, South Sumatera 30862, Indonesia
Masno Ginting, Research Center for Advanced Materials (PRMM), Nasional Research and Inovation Agency (BRIN), Serpong, South Tangerang, Indonesia

Abstract
The synthesis of BaFe12-2xCoxNixO19 (x = 0.5-1.5) at a calcination temperature of 1000°C using the coprecipitation method has been done by varying the concentration of the mixed precursor in order to identify the optimum sample. Barium Hexaferrite powder with 0.5% and 1% Nio-CoO has a BaFe12O19 phase. The DT-TGA curve analysis, at temperatures above 1000oC with a relatively small decrease in mass of 0.37%, indicates that the unwanted compounds have decomposed and the Barium Hexaferrite phase begins to form. Samples with a composition of 1%, NiO-CoO formed BaFe2O4 and NiBa phases, with a quantity of 96.4% BaFe2O4 phase. The phase change is caused by the lack of oxygen which weakening of the Fe-Sr-O bond. The magnetic properties of Barium Hexaferrite powder were successfully improved at 1% NiO-CoO, with a BHmax value of 2.26 MGOe.

Keywords
BaFe12O19; Crystal Structure ; Magnetic Properties

Cite this paper
Ramlan, Marzuki Naibaho, Endah Puspita, Yahri Seftiadi, Masno Ginting, EFFECT OF NiO AND CoO ADDITIVES ON CRYSTAL STRUCTURE AND MAGNETIC PROPERTIES IN MANUFACTURING MAGNETS BaFe12O19 , SCIREA Journal of Materials. Volume 8, Issue 1, February 2023 | PP. 1-14. 10.54647/materials430216

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