Please use this identifier to cite or link to this item:
https://doi.org/10.1039/c7ra03251j
DC Field | Value | |
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dc.title | Ferrite-based soft and hard magnetic structures by extrusion free-forming | |
dc.contributor.author | Peng, E | |
dc.contributor.author | Wei, X | |
dc.contributor.author | Herng, T.S | |
dc.contributor.author | Garbe, U | |
dc.contributor.author | Yu, D | |
dc.contributor.author | Ding, J | |
dc.date.accessioned | 2020-09-02T06:41:59Z | |
dc.date.available | 2020-09-02T06:41:59Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Peng, 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. ScholarBank@NUS Repository. https://doi.org/10.1039/c7ra03251j | |
dc.identifier.issn | 20462069 | |
dc.identifier.uri | https://scholarbank.nus.edu.sg/handle/10635/173962 | |
dc.description.abstract | Functional 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. © 2017 The Royal Society of Chemistry. | |
dc.source | Unpaywall 20200831 | |
dc.subject | Ceramic materials | |
dc.subject | Crystallography | |
dc.subject | Extrusion | |
dc.subject | Ferrite | |
dc.subject | Magnetic materials | |
dc.subject | Magnetic structure | |
dc.subject | Magnetism | |
dc.subject | Magnetization | |
dc.subject | Metal extrusion | |
dc.subject | Metallic compounds | |
dc.subject | Metals | |
dc.subject | Powder metals | |
dc.subject | Praseodymium compounds | |
dc.subject | Solid state reactions | |
dc.subject | Bulk magnetization | |
dc.subject | Functional ceramics | |
dc.subject | Hard magnetic material | |
dc.subject | High temperature solid-state reaction | |
dc.subject | Metal oxide powders | |
dc.subject | Polycrystalline microstructure | |
dc.subject | Printed structures | |
dc.subject | Three dimensional morphology | |
dc.subject | Saturation magnetization | |
dc.type | Article | |
dc.contributor.department | MATERIALS SCIENCE AND ENGINEERING | |
dc.contributor.department | CHEMISTRY | |
dc.description.doi | 10.1039/c7ra03251j | |
dc.description.sourcetitle | RSC Advances | |
dc.description.volume | 7 | |
dc.description.issue | 43 | |
dc.description.page | 27128-27138 | |
Appears in Collections: | Staff Publications Elements |
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