Towards Further Improvements of the Magnetization Parameters of B2O3-Doped BaFe12O19 Particles: Etching with Hydrochloric Acid
In the present study, we investigate influence of HCl-etching on magnetic parameters of B 2 O 3 -doped M-type barium ferrites. Our studies have shown that magnetization parameters; the remanence magnetization M r and the specific magnetization M s at 1.5 T, increase significantly with HCl-etching. T...
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Published in | Journal of superconductivity and novel magnetism Vol. 25; no. 5; pp. 1485 - 1488 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
Boston
Springer US
01.07.2012
Springer |
Subjects | |
Online Access | Get full text |
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Summary: | In the present study, we investigate influence of HCl-etching on magnetic parameters of B
2
O
3
-doped M-type barium ferrites. Our studies have shown that magnetization parameters; the remanence magnetization
M
r
and the specific magnetization
M
s
at 1.5 T, increase significantly with HCl-etching. The best magnetic parameters were observed in the sample of 0.1 wt% B
2
O
3
-doped and HCl-washed one after calcination at 1000 °C (
M
r
=34.9 emu/g,
M
s
=0.63.3 emu/g). Increments up to 50% in magnitudes could be achieved with HCl washing. Exchange interactions between particles were also examined by Wohlfarth model. It was observed that magnetizing-like interactions between particles become stronger but ,on the other hand, demagnetizing-like interactions becomes weaker with HCl-etching. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1557-1939 1557-1947 |
DOI: | 10.1007/s10948-012-1486-4 |