Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10709999 | Journal of Magnetism and Magnetic Materials | 2011 | 6 Pages |
Abstract
⺠Effect of lanthanum substitution on the phase composition, lattice parameters and magnetic properties of barium hexaferrite has been studied. ⺠Samples are prepared with different lanthanum amounts and various initial Fe/(Ba+La) ratios {(Ba1âxLax)·n Fe2O3, where 0â¤xâ¤1 and 1â¤nâ¤6)}. ⺠Optimum La concentration that maximizes the coercivity at 5.73 kOe was determined as x=0.3 in Ba1âxLaxFe12O19 samples ⺠Saturation magnetization has also been increased by choosing the initial Fe/(Ba+La) molar ratio as 2 (i.e., n=1) with HCl treatment. ⺠Chemical formula of the sample which has both the highest coercivity and saturation magnetization is determined as (Ba0.64La0.36)Fe10.5O19.89.
Related Topics
Physical Sciences and Engineering
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Condensed Matter Physics
Authors
H. Sözeri, İ. Küçük, H. Ãzkan,