A study of magneto-crystalline alignment in sintered barium hexaferrite fabricated by powder injection molding
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.
Keywords:
PIM magnet / Magnetic alignment / Feedstock / Barium hexaferriteSource:
Journal of Magnetism and Magnetic Materials, 2009, 321, 4, 330-335Publisher:
- Elsevier Science Bv, Amsterdam
Funding / projects:
- Austrian Federal Government/FFG
DOI: 10.1016/j.jmmm.2008.09.014
ISSN: 0304-8853
WoS: 000260904200020
Scopus: 2-s2.0-55649118430
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Institution/Community
Institut za multidisciplinarna istraživanjaTY - 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 . .