Additive manufacturing of anisotropic hybrid NdFeB-SmFeN nylon composite bonded magnets

Kinjal Gandha; Ling Li; I. C. Nlebedim; Brian K. Post; Vlastimil Kunc; Brian C. Sales; James Bell; M. Parans Paranthaman

doi:10.1016/j.jmmm.2018.07.021

Additive manufacturing of anisotropic hybrid NdFeB-SmFeN nylon composite bonded magnets

Kinjal Gandha, Ling Li, I. C. Nlebedim, Brian K. Post, Vlastimil Kunc, Brian C. Sales, James Bell, M. Parans Paranthaman

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

70 Scopus citations

Abstract

In this work, we demonstrate a novel method of extrusion-based 3D printing additive manufacturing of bonded magnets comprising 65 vol% anisotropic composite powders of Dy-free magfine Nd-Fe-B and Sm-Fe-N in nylon. The 3D printing was performed using a big area additive manufacturing (BAAM) process. The effects of various post-printing alignment with different magnetic field intensities and temperatures on the properties of the anisotropic bonded Nd-Fe-B + Sm-Fe-N composite magnets were investigated. Remanence increases with alignment magnetic field leading to an increase in energy product, (BH)_max. For anisotropic Nd-Fe-B + Sm-Fe-N composite bonded magnets with a 65 vol% loading fraction, (BH)_max of up to 11.3 MGOe are obtained. In addition, the magnetic properties of the bonded magnets can be tuned through the post-printing alignment of anisotropic particles in different directions without impairing the original shape-changing effect. This technique shows great promise for producing anisotropic bonded magnets with enhanced magnetic properties.

Original language	English
Pages (from-to)	8-13
Number of pages	6
Journal	Journal of Magnetism and Magnetic Materials
Volume	467
DOIs	https://doi.org/10.1016/j.jmmm.2018.07.021
State	Published - Dec 1 2018

Funding

This research was supported by the Critical Materials Institute, an Energy Innovation Hub funded by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office.

Funders	Funder number
U.S. Department of Energy
Advanced Manufacturing Office
Office of Energy Efficiency and Renewable Energy

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jmmm.2018.07.021

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title = "Additive manufacturing of anisotropic hybrid NdFeB-SmFeN nylon composite bonded magnets",

abstract = "In this work, we demonstrate a novel method of extrusion-based 3D printing additive manufacturing of bonded magnets comprising 65 vol% anisotropic composite powders of Dy-free magfine Nd-Fe-B and Sm-Fe-N in nylon. The 3D printing was performed using a big area additive manufacturing (BAAM) process. The effects of various post-printing alignment with different magnetic field intensities and temperatures on the properties of the anisotropic bonded Nd-Fe-B + Sm-Fe-N composite magnets were investigated. Remanence increases with alignment magnetic field leading to an increase in energy product, (BH)max. For anisotropic Nd-Fe-B + Sm-Fe-N composite bonded magnets with a 65 vol% loading fraction, (BH)max of up to 11.3 MGOe are obtained. In addition, the magnetic properties of the bonded magnets can be tuned through the post-printing alignment of anisotropic particles in different directions without impairing the original shape-changing effect. This technique shows great promise for producing anisotropic bonded magnets with enhanced magnetic properties.",

author = "Kinjal Gandha and Ling Li and Nlebedim, {I. C.} and Post, {Brian K.} and Vlastimil Kunc and Sales, {Brian C.} and James Bell and Paranthaman, {M. Parans}",

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doi = "10.1016/j.jmmm.2018.07.021",

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AU - Gandha, Kinjal

AU - Li, Ling

AU - Nlebedim, I. C.

AU - Post, Brian K.

AU - Kunc, Vlastimil

AU - Sales, Brian C.

AU - Bell, James

AU - Paranthaman, M. Parans

PY - 2018/12/1

Y1 - 2018/12/1

N2 - In this work, we demonstrate a novel method of extrusion-based 3D printing additive manufacturing of bonded magnets comprising 65 vol% anisotropic composite powders of Dy-free magfine Nd-Fe-B and Sm-Fe-N in nylon. The 3D printing was performed using a big area additive manufacturing (BAAM) process. The effects of various post-printing alignment with different magnetic field intensities and temperatures on the properties of the anisotropic bonded Nd-Fe-B + Sm-Fe-N composite magnets were investigated. Remanence increases with alignment magnetic field leading to an increase in energy product, (BH)max. For anisotropic Nd-Fe-B + Sm-Fe-N composite bonded magnets with a 65 vol% loading fraction, (BH)max of up to 11.3 MGOe are obtained. In addition, the magnetic properties of the bonded magnets can be tuned through the post-printing alignment of anisotropic particles in different directions without impairing the original shape-changing effect. This technique shows great promise for producing anisotropic bonded magnets with enhanced magnetic properties.

AB - In this work, we demonstrate a novel method of extrusion-based 3D printing additive manufacturing of bonded magnets comprising 65 vol% anisotropic composite powders of Dy-free magfine Nd-Fe-B and Sm-Fe-N in nylon. The 3D printing was performed using a big area additive manufacturing (BAAM) process. The effects of various post-printing alignment with different magnetic field intensities and temperatures on the properties of the anisotropic bonded Nd-Fe-B + Sm-Fe-N composite magnets were investigated. Remanence increases with alignment magnetic field leading to an increase in energy product, (BH)max. For anisotropic Nd-Fe-B + Sm-Fe-N composite bonded magnets with a 65 vol% loading fraction, (BH)max of up to 11.3 MGOe are obtained. In addition, the magnetic properties of the bonded magnets can be tuned through the post-printing alignment of anisotropic particles in different directions without impairing the original shape-changing effect. This technique shows great promise for producing anisotropic bonded magnets with enhanced magnetic properties.

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JO - Journal of Magnetism and Magnetic Materials

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ER -

Additive manufacturing of anisotropic hybrid NdFeB-SmFeN nylon composite bonded magnets

Abstract

Funding

UN SDGs

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