TY - JOUR

T1 - In-situ alignment of 3D printed anisotropic hard magnets

AU - Suppan, M.

AU - Huber, Christian

AU - Mathauer, K.

AU - Abert, Claas

AU - Bruckner, Florian

AU - Gonzalez-Gutierrez, Joamin

AU - Schuschnigg, Stephan

AU - Groenefeld, Martin

AU - Teliban, Iulian

AU - Kobe, S.

AU - Saje, B.

AU - Suess, DIeter

N1 - Funding Information: The financial support of the FWF project I 4917 is acknowledged. Publisher Copyright: © 2022, The Author(s).

PY - 2022/10/20

Y1 - 2022/10/20

N2 - 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.

AB - 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.

KW - Fused Filament Fabrication

KW - Strontium hexaferrite

KW - Samarium iron nitride

UR - http://www.scopus.com/inward/record.url?scp=85140213538&partnerID=8YFLogxK

U2 - 10.1038/s41598-022-20669-8

DO - 10.1038/s41598-022-20669-8

M3 - Artikel

VL - 12.2022

JO - Scientific reports (London : Nature Publishing Group)

JF - Scientific reports (London : Nature Publishing Group)

SN - 2045-2322

IS - October

M1 - 17590

ER -