Direct-write 3D printing of NdFeB bonded magnets

Brett Gibson Compton; James William Kemp; Timofei V. Novikov; Robert Cody Pack; Cajetan I. Nlebedim; Chad Edward Duty; Orlando Rios; M. Parans Paranthaman

doi:10.1080/10426914.2016.1221097

Direct-write 3D printing of NdFeB bonded magnets

Brett Gibson Compton
, James William Kemp
, Timofei V. Novikov
, Robert Cody Pack
, Cajetan I. Nlebedim
, Chad Edward Duty
, Orlando Rios
, M. Parans Paranthaman

Nanomaterials Chemistry Group

Research output: Contribution to journal › Letter › peer-review

91 Scopus citations

Abstract

We report a method to fabricate Nd–Fe–B (NdFeB) bonded magnets of complex shape via extrusion-based additive manufacturing (AM), also known as 3D-printing. We have successfully formulated a 3D-printable epoxy-based ink for direct-write AM with anisotropic MQA NdFeB magnet particles that can be deposited at room temperature. The new feedstocks contain up to 40 vol.% MQA anisotropic NdFeB magnet particles, and they are shown to remain uniformly dispersed in the thermoset matrix throughout the deposition process. Ring, bar, and horseshoe-type 3D magnet structures were printed and cured in air at 100°C without degrading the magnetic properties. This study provides a new pathway for fabricating NdFeB bonded magnets with complex geometry at low temperature, and presents new opportunities for fabricating multifunctional hybrid structures and devices.

Original language	English
Pages (from-to)	109-113
Number of pages	5
Journal	Materials and Manufacturing Processes
Volume	33
Issue number	1
DOIs	https://doi.org/10.1080/10426914.2016.1221097
State	Published - Jan 2 2018

Keywords

3D printing
NdFeB
bonded magnets
direct-write
magnetic properties

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10.1080/10426914.2016.1221097

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title = "Direct-write 3D printing of NdFeB bonded magnets",

abstract = "We report a method to fabricate Nd–Fe–B (NdFeB) bonded magnets of complex shape via extrusion-based additive manufacturing (AM), also known as 3D-printing. We have successfully formulated a 3D-printable epoxy-based ink for direct-write AM with anisotropic MQA NdFeB magnet particles that can be deposited at room temperature. The new feedstocks contain up to 40 vol.\% MQA anisotropic NdFeB magnet particles, and they are shown to remain uniformly dispersed in the thermoset matrix throughout the deposition process. Ring, bar, and horseshoe-type 3D magnet structures were printed and cured in air at 100°C without degrading the magnetic properties. This study provides a new pathway for fabricating NdFeB bonded magnets with complex geometry at low temperature, and presents new opportunities for fabricating multifunctional hybrid structures and devices.",

keywords = "3D printing, NdFeB, bonded magnets, direct-write, magnetic properties",

author = "Compton, \{Brett Gibson\} and Kemp, \{James William\} and Novikov, \{Timofei V.\} and Pack, \{Robert Cody\} and Nlebedim, \{Cajetan I.\} and Duty, \{Chad Edward\} and Orlando Rios and Paranthaman, \{M. Parans\}",

note = "Publisher Copyright: {\textcopyright} 2017 UT-Battelle, LLC.",

year = "2018",

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doi = "10.1080/10426914.2016.1221097",

language = "English",

volume = "33",

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journal = "Materials and Manufacturing Processes",

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T1 - Direct-write 3D printing of NdFeB bonded magnets

AU - Compton, Brett Gibson

AU - Kemp, James William

AU - Novikov, Timofei V.

AU - Pack, Robert Cody

AU - Nlebedim, Cajetan I.

AU - Duty, Chad Edward

AU - Rios, Orlando

AU - Paranthaman, M. Parans

PY - 2018/1/2

Y1 - 2018/1/2

N2 - We report a method to fabricate Nd–Fe–B (NdFeB) bonded magnets of complex shape via extrusion-based additive manufacturing (AM), also known as 3D-printing. We have successfully formulated a 3D-printable epoxy-based ink for direct-write AM with anisotropic MQA NdFeB magnet particles that can be deposited at room temperature. The new feedstocks contain up to 40 vol.% MQA anisotropic NdFeB magnet particles, and they are shown to remain uniformly dispersed in the thermoset matrix throughout the deposition process. Ring, bar, and horseshoe-type 3D magnet structures were printed and cured in air at 100°C without degrading the magnetic properties. This study provides a new pathway for fabricating NdFeB bonded magnets with complex geometry at low temperature, and presents new opportunities for fabricating multifunctional hybrid structures and devices.

AB - We report a method to fabricate Nd–Fe–B (NdFeB) bonded magnets of complex shape via extrusion-based additive manufacturing (AM), also known as 3D-printing. We have successfully formulated a 3D-printable epoxy-based ink for direct-write AM with anisotropic MQA NdFeB magnet particles that can be deposited at room temperature. The new feedstocks contain up to 40 vol.% MQA anisotropic NdFeB magnet particles, and they are shown to remain uniformly dispersed in the thermoset matrix throughout the deposition process. Ring, bar, and horseshoe-type 3D magnet structures were printed and cured in air at 100°C without degrading the magnetic properties. This study provides a new pathway for fabricating NdFeB bonded magnets with complex geometry at low temperature, and presents new opportunities for fabricating multifunctional hybrid structures and devices.

KW - 3D printing

KW - NdFeB

KW - bonded magnets

KW - direct-write

KW - magnetic properties

UR - https://www.scopus.com/pages/publications/85006905615

U2 - 10.1080/10426914.2016.1221097

DO - 10.1080/10426914.2016.1221097

M3 - Letter

AN - SCOPUS:85006905615

SN - 1042-6914

VL - 33

SP - 109

EP - 113

JO - Materials and Manufacturing Processes

JF - Materials and Manufacturing Processes

IS - 1

ER -

Direct-write 3D printing of NdFeB bonded magnets

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Keywords

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