Barium hexaferrite permanent magnets were produced by powder injection molding. Starting barium hexaferrite powder was prepared from a Fe2O3 and BaCO3 powder mixture by calcination followed by milling. The feedstock for powder injection molding was prepared by mixing barium hexaferrite powder with a low viscosity binder. Magnetic alignment was achieved by applying a high intensity magnetic field to the melted feedstock during the injection process. Green samples (with and without magnetic alignment) were subjected to solvent debinding and subsequent thermal debinding followed by sintering. Sintering conditions were optimized in order to achieve a maximum energy product value. Magneto-crystalline aligning in barium hexaferrite was studied on both green and sintered samples using X-ray diffraction, scanning electron microscope (SEM) and magnetic measurements (hysteresis-graphs). All measurements were made both in a parallel and perpendicular direction to the aligning magnetic field. The ...obtained results confirmed magneto-crystalline alignment.
Keywords:
PIM magnet / Magnetic alignment / Feedstock / Barium hexaferrite
Source:
Journal of Magnetism and Magnetic Materials, 2009, 321, 4, 330-335
TY - JOUR
AU - Zlatkov, B.S.
AU - Nikolić, Maria Vesna
AU - Aleksić, Obrad
AU - Danninger, H.
AU - Halwax, E.
PY - 2009
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/367
AB - Barium hexaferrite permanent magnets were produced by powder injection molding. Starting barium hexaferrite powder was prepared from a Fe2O3 and BaCO3 powder mixture by calcination followed by milling. The feedstock for powder injection molding was prepared by mixing barium hexaferrite powder with a low viscosity binder. Magnetic alignment was achieved by applying a high intensity magnetic field to the melted feedstock during the injection process. Green samples (with and without magnetic alignment) were subjected to solvent debinding and subsequent thermal debinding followed by sintering. Sintering conditions were optimized in order to achieve a maximum energy product value. Magneto-crystalline aligning in barium hexaferrite was studied on both green and sintered samples using X-ray diffraction, scanning electron microscope (SEM) and magnetic measurements (hysteresis-graphs). All measurements were made both in a parallel and perpendicular direction to the aligning magnetic field. The obtained results confirmed magneto-crystalline alignment.
PB - Elsevier Science Bv, Amsterdam
T2 - Journal of Magnetism and Magnetic Materials
T1 - A study of magneto-crystalline alignment in sintered barium hexaferrite fabricated by powder injection molding
EP - 335
IS - 4
SP - 330
VL - 321
DO - 10.1016/j.jmmm.2008.09.014
ER -
@article{
author = "Zlatkov, B.S. and Nikolić, Maria Vesna and Aleksić, Obrad and Danninger, H. and Halwax, E.",
year = "2009",
abstract = "Barium hexaferrite permanent magnets were produced by powder injection molding. Starting barium hexaferrite powder was prepared from a Fe2O3 and BaCO3 powder mixture by calcination followed by milling. The feedstock for powder injection molding was prepared by mixing barium hexaferrite powder with a low viscosity binder. Magnetic alignment was achieved by applying a high intensity magnetic field to the melted feedstock during the injection process. Green samples (with and without magnetic alignment) were subjected to solvent debinding and subsequent thermal debinding followed by sintering. Sintering conditions were optimized in order to achieve a maximum energy product value. Magneto-crystalline aligning in barium hexaferrite was studied on both green and sintered samples using X-ray diffraction, scanning electron microscope (SEM) and magnetic measurements (hysteresis-graphs). All measurements were made both in a parallel and perpendicular direction to the aligning magnetic field. The obtained results confirmed magneto-crystalline alignment.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Journal of Magnetism and Magnetic Materials",
title = "A study of magneto-crystalline alignment in sintered barium hexaferrite fabricated by powder injection molding",
pages = "335-330",
number = "4",
volume = "321",
doi = "10.1016/j.jmmm.2008.09.014"
}
Zlatkov, B.S., Nikolić, M. V., Aleksić, O., Danninger, H.,& Halwax, E.. (2009). A study of magneto-crystalline alignment in sintered barium hexaferrite fabricated by powder injection molding. in Journal of Magnetism and Magnetic Materials
Elsevier Science Bv, Amsterdam., 321(4), 330-335.
https://doi.org/10.1016/j.jmmm.2008.09.014
Zlatkov B, Nikolić MV, Aleksić O, Danninger H, Halwax E. A study of magneto-crystalline alignment in sintered barium hexaferrite fabricated by powder injection molding. in Journal of Magnetism and Magnetic Materials. 2009;321(4):330-335.
doi:10.1016/j.jmmm.2008.09.014 .
Zlatkov, B.S., Nikolić, Maria Vesna, Aleksić, Obrad, Danninger, H., Halwax, E., "A study of magneto-crystalline alignment in sintered barium hexaferrite fabricated by powder injection molding" in Journal of Magnetism and Magnetic Materials, 321, no. 4 (2009):330-335,
https://doi.org/10.1016/j.jmmm.2008.09.014 . .
