Direct-write 3D printing of NdFeB bonded magnets
Abstract
We report a method to fabricate Nd-Fe-B 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 Nd-Fe-B 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. Lastly, this study provides a new pathway for fabricating Nd-Fe-B bonded magnets with complex geometry at low temperature, and presents new opportunities for fabricating multifunctional hybrid structures and devices.
- Authors:
-
- Univ. of Tennessee, Knoxville, TN (United States). Dept. of Mechanical, Aerospace, and Biomedical Engineering
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
- Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering
- Ames Lab., Ames, IA (United States). Critical Materials Inst.
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
- Publication Date:
- Research Org.:
- Ames Lab., Ames, IA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Manufacturing Office
- OSTI Identifier:
- 1342934
- Alternate Identifier(s):
- OSTI ID: 1408633
- Report Number(s):
- IS-J-9070
Journal ID: ISSN 1042-6914
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Materials and Manufacturing Processes
- Additional Journal Information:
- Journal Volume: 33; Journal Issue: 1; Conference: Direct-write 3D printing of NdFeB bonded magnets; Journal ID: ISSN 1042-6914
- Publisher:
- Taylor & Francis
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 3D printing; bonded magnets; direct-write; magnetic properties; NdFeB
Citation Formats
Compton, Brett Gibson, Kemp, James William, Novikov, Timofei V., Pack, Robert Cody, Nlebedim, Cajetan I., Duty, Chad Edward, Rios, Orlando, and Paranthaman, M. Parans. Direct-write 3D printing of NdFeB bonded magnets. United States: N. p., 2016.
Web. doi:10.1080/10426914.2016.1221097.
Compton, Brett Gibson, Kemp, James William, Novikov, Timofei V., Pack, Robert Cody, Nlebedim, Cajetan I., Duty, Chad Edward, Rios, Orlando, & Paranthaman, M. Parans. Direct-write 3D printing of NdFeB bonded magnets. United States. https://doi.org/10.1080/10426914.2016.1221097
Compton, Brett Gibson, Kemp, James William, Novikov, Timofei V., Pack, Robert Cody, Nlebedim, Cajetan I., Duty, Chad Edward, Rios, Orlando, and Paranthaman, M. Parans. Wed .
"Direct-write 3D printing of NdFeB bonded magnets". United States. https://doi.org/10.1080/10426914.2016.1221097. https://www.osti.gov/servlets/purl/1342934.
@article{osti_1342934,
title = {Direct-write 3D printing of NdFeB bonded magnets},
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 Rios, Orlando and Paranthaman, M. Parans},
abstractNote = {We report a method to fabricate Nd-Fe-B 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 Nd-Fe-B 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. Lastly, this study provides a new pathway for fabricating Nd-Fe-B bonded magnets with complex geometry at low temperature, and presents new opportunities for fabricating multifunctional hybrid structures and devices.},
doi = {10.1080/10426914.2016.1221097},
journal = {Materials and Manufacturing Processes},
number = 1,
volume = 33,
place = {United States},
year = {Wed Aug 17 00:00:00 EDT 2016},
month = {Wed Aug 17 00:00:00 EDT 2016}
}
Web of Science
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