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A 3D-Printable Polymer-Metal Soft-Magnetic Functional Composite—Development and Characterization

Khatri, Bilal; Lappe, Karl; Noetzel, Dorit 1; Pursche, Kilian 1; Hanemann, Thomas 1
1 Karlsruher Institut für Technologie (KIT)


In this work, a 3D printed polymer-metal soft-magnetic composite was developed and characterized for its material, structural, and functional properties. The material comprises acrylonitrile butadiene styrene (ABS) as the polymer matrix, with up to 40 vol. % stainless steel micropowder as the filler. The composites were rheologically analyzed and 3D printed into tensile and flexural test specimens using a commercial desktop 3D printer. Mechanical characterization revealed a linearly decreasing trend of the ultimate tensile strength (UTS) and a sharp decrease in Young's modulus with increasing filler content. Four-point bending analysis showed a decrease of up to 70% in the flexural strength of the composite and up to a two-factor increase in the secant modulus of elasticity. Magnetic hysteresis characterization revealed retentivities of up to 15.6 mT and coercive forces of up to 4.31 kA/m at an applied magnetic field of 485 kA/m. The composite shows promise as a material for the additive manufacturing of passive magnetic sensors and/or actuators.

Verlagsausgabe §
DOI: 10.5445/IR/1000079513
Veröffentlicht am 29.01.2018
DOI: 10.3390/ma11020189
Zitationen: 83
Web of Science
Zitationen: 71
Zitationen: 82
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Werkstoffkunde (IAM-WK)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 02.2018
Sprache Englisch
Identifikator ISSN: 1996-1944
KITopen-ID: 1000079513
HGF-Programm 43.22.03 (POF III, LK 01) Printed Materials and Systems
Erschienen in Materials
Verlag MDPI
Band 11
Heft 2
Seiten Art.Nr. 189
Nachgewiesen in Web of Science
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