In-situ alignment of 3D printed anisotropic hard magnets

M. Suppan, Christian Huber, K. Mathauer, Claas Abert, Florian Bruckner, Joamin Gonzalez-Gutierrez, Stephan Schuschnigg, Martin Groenefeld, Iulian Teliban, S. Kobe, B. Saje, DIeter Suess

Research output: Contribution to journalArticleResearchpeer-review


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.
Original languageGerman
Article number17590
Number of pages6
JournalScientific reports (London : Nature Publishing Group)
Issue numberOctober
Publication statusPublished - 20 Oct 2022

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  • Fused Filament Fabrication
  • Strontium hexaferrite
  • Samarium iron nitride

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