Search
Home > Issues > SearchUse of Vanadium Oxide as a Liquid Phase Sintering Aid for Barium Hexaferrite
Journal of Magnetics, Volume 23, Number 3, 30 Sep 2018, Pages 409-415
John G. Fisher * 
(School of Materials Science and Engineering, Chonnam National University), Phan Gia Le (School of Materials Science and Engineering, Chonnam National University), Hak-Sang Han (School of Materials Science and Engineering, Chonnam National University), Su-Min Jeong (School of Materials Science and Engineering, Chonnam National University), Naomi Karina Cabral de Leon (Department of Industrial Engineering, Santo Domingo Institute of Technology), Alejandro Danies Lopez (Department of Biomedical Engineering, EIA University)
(School of Materials Science and Engineering, Chonnam National University), Phan Gia Le (School of Materials Science and Engineering, Chonnam National University), Hak-Sang Han (School of Materials Science and Engineering, Chonnam National University), Su-Min Jeong (School of Materials Science and Engineering, Chonnam National University), Naomi Karina Cabral de Leon (Department of Industrial Engineering, Santo Domingo Institute of Technology), Alejandro Danies Lopez (Department of Biomedical Engineering, EIA University)
Abstract
The use of V2O5 as a liquid phase sintering aid for BaFe12O19 is studied. Three weight % of V2O5 is added to a BaFe12O19 powder, samples are sintered at temperatures between 900-1250 °C and the effects of sintering aid addition on densification, microstructure, phase purity and magnetic properties are examined. Compared to BaFe12O19 without sintering aid addition, addition of 3 wt% V2O5 leads to a moderate improvement in densification behavior. Samples with 3 wt% V2O5 addition contain considerable amounts of Fe2O3 and Ba3(VO4)2 second phases. The BaFe12O19 sample without sintering aid addition has a Magnetization-Field
hysteresis loop typical of a hard ferrimagnetic material, whereas the 97 wt% BaFe12O19 - 3 wt% V2O5 sample has a hysteresis loop with reduced saturation magnetization and coercivity.
hysteresis loop typical of a hard ferrimagnetic material, whereas the 97 wt% BaFe12O19 - 3 wt% V2O5 sample has a hysteresis loop with reduced saturation magnetization and coercivity.
Keywords: ferrites; sintering; microstructure; magnetic properties
DOI: https://doi.org/10.4283/JMAG.2018.23.3.409
Full Text : PDF
