In-situ alignment of 3D printed anisotropic hard magnets

Autor(en)

M. Suppan, C. Huber, K. Mathauer, C. Abert, F. Brucker, J. Gonzalez-Gutierrez, S. Schuschnigg, M. Groenefeld, I. Teliban, S. Kobe, B. Saje, D. Suess

Abstrakt

Within this work, we demonstrate in-situ alignment of the easy axis single-crystal magnetic particles inside a polymer matrix using fused filament fabrication. Two different magnetic materials are investigated: (i) Strontium hexaferrite inside a PA6 matrix, fill grade: 49 vol% and (ii) Samarium iron nitride inside a PA12 matrix, fill grade: 44 vol%. In the presence of the external alignment field, the strontium hexaferrite particles inside the PA6 matrix can be well aligned with a ratio of remnant magnetization to saturation magnetization in an easy axis of 0.7. No significant alignment for samarium iron nitride could be achieved. The results show the feasibility to fabricate magnets with arbitrary and locally defined easy axis using fused filament fabrication since the permanent magnets (or alternatively an electromagnet) can be mounted on a rotatable platform.

Organisation(en)

Physik Funktioneller Materialien, Forschungsplattform MMM Mathematics-Magnetism-Materials, Computergestützte Physik und Physik der Weichen Materie

Externe Organisation(en)

Montanuniversität Leoben, Luxembourg Institute of Science and Technology, Magnetfabrik Bonn GmbH, Jožef Stefan Institute (IJS), Kolektor Magnet Technology GmbH, Universität Wien

Journal

Scientific Reports

Band

12

Anzahl der Seiten

6

ISSN

2045-2322

DOI

https://doi.org/10.1038/s41598-022-20669-8

Publikationsdatum

10-2022

Peer-reviewed

Ja

ÖFOS 2012

103018 Materialphysik

ASJC Scopus Sachgebiete

General

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/79886b98-9b59-4d60-b3ed-88cb7321ce1b