Ferrite-based soft and hard magnetic structures by extrusion free-forming

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dc.contributor.authorPeng, Een_AU
dc.contributor.authorWei, XXen_AU
dc.contributor.authorHerng, TSen_AU
dc.contributor.authorGarbe, Uen_AU
dc.contributor.authorYu, DHen_AU
dc.contributor.authorDing, Jen_AU
dc.date.accessioned2025-03-20T02:45:15Zen_AU
dc.date.available2025-03-20T02:45:15Zen_AU
dc.date.issued2017-05-22en_AU
dc.date.statistics2025-03-20en_AU
dc.description.abstractFunctional ceramic materials, especially those with unique magnetic properties, with complex geometries have become increasingly important for various key technologies in industry. Herein, ferrite-based soft (NiFe2O4) and hard (BaFe12O19) bulk magnetic structures with three-dimensional morphologies are successfully fabricated from inexpensive metal oxide powder (NiO/Fe2O3 and BaCO3/Fe2O3) precursors through a simple extrusion free-forming (EFF) technique coupled with a high temperature solid-state reaction process. Dense polycrystalline microstructures with negligible porosity are observed for samples sintered above 1200 °C and highly crystalline NiFe2O4 and BaFe12O19 phases are successfully formed. The printed structures also exhibit either soft or hard magnetic material behavior with (i) saturation magnetization values up to approximately 86% and 95% of the NiFe2O4 and BaFe12O19 theoretical bulk magnetization values, respectively, and (ii) high densities up to ∼93% of their respective theoretical bulk density. Bulk magnetic structures with unique geometries (e.g. mesh, gear, ring and cylinder) are successfully fabricated. The EFF technique demonstrated in this work can be readily extended to other functional ferrite or titanate ceramic materials simply by changing the metal oxide powder precursors. © The Royal Society of Chemistry 2017en_AU
dc.identifier.citationPeng, E., Wei, X., Herng, T. S., Garbe, U., Yu, D., & Ding, J. (2017). Ferrite-based soft and hard magnetic structures by extrusion free-forming. RSC Advances, 7(43), 27128-27138. doi:10.1039/C7RA03251Jen_AU
dc.identifier.issn2046-2069en_AU
dc.identifier.issue43en_AU
dc.identifier.journaltitleRSC Advancesen_AU
dc.identifier.pagination27128-27138en_AU
dc.identifier.urihttps://doi.org/10.1039/c7ra03251jen_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/16076en_AU
dc.identifier.volume7en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherRoyal Society of Chemistry (RSC)en_AU
dc.subjectExtrusionen_AU
dc.subjectCeramicsen_AU
dc.subjectCeramographyen_AU
dc.subjectMagnetic propertiesen_AU
dc.subjectFerritesen_AU
dc.subjectChemical reactionsen_AU
dc.subjectTitanatesen_AU
dc.subjectMorphologyen_AU
dc.subjectMaterials workingen_AU
dc.titleFerrite-based soft and hard magnetic structures by extrusion free-formingen_AU
dc.typeJournal Articleen_AU
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