Additive manufacturing of isotropic NdFeB PPS bonded permanent magnets

M. Parans Paranthaman; Volkan Yildirim; Tej Nath Lamichhane; Benjamin A. Begley; Brian K. Post; Ahmed A. Hassen; Brian C. Sales; Kinjal Gandha; Ikenna C. Nlebedim

doi:10.3390/ma13153319

Additive manufacturing of isotropic NdFeB PPS bonded permanent magnets

M. Parans Paranthaman, Volkan Yildirim, Tej Nath Lamichhane, Benjamin A. Begley, Brian K. Post, Ahmed A. Hassen, Brian C. Sales, Kinjal Gandha, Ikenna C. Nlebedim

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

27 Scopus citations

Abstract

Extrusion based additive manufacturing of polymer composite magnets can increase the solid loading volume fraction with greater mechanical force through the printing nozzle as compared to traditional injection molding process. About 63 vol% of isotropic NdFeB magnet powders were compounded with 37 vol% of polyphenylene sulfide and bonded permanent magnets were fabricated while using Big Area Additive Manufacturing without any degradation in magnetic properties. The polyphenylene sulfide bonded magnets have a tensile stress of 20 MPa, almost double than that of nylon bonded permanent magnets. Additively manufactured and surface-protective-resin coated bonded magnets meet the industrial stability criterion of up to 175 °C with a flux-loss of 2.35% over 1000 h. They also exhibit better corrosion resistance behavior when exposed to acidic (pH = 1.35) solution for 24 h and also annealed at 80 °C over 100 h (at 95% relative humidity) over without coated magnets. Thus, polyphenylene sulfide bonded, additively manufactured, protective resin coated bonded permanent magnets provide better thermal, mechanical, and magnetic properties.

Original language	English
Article number	3319
Journal	Materials
Volume	13
Issue number	15
DOIs	https://doi.org/10.3390/ma13153319
State	Published - Aug 2020

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. SEM microstructural characterizations were conducted at the Center for Nanophase Materials Sciences, which is the US Department of Energy Office of Science User Facility. The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). 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. SEM microstructural characterizations were conducted at the Center for Nanophase Materials Sciences, which is the US Department of Energy Office of Science User Facility.

Funders	Funder number
Critical Materials Institute
DOE Public Access Plan
U.S. Department of Energy
Advanced Manufacturing Office
Office of Energy Efficiency and Renewable Energy

Keywords

Additive manufacturing
Magnetic properties
NdFeB PPS bonded permanent magnets
Tensile strength
Thermal stability

UN SDGs

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

Access to Document

10.3390/ma13153319

Cite this

@article{a3a592d1625644a3a8d01e1c983f5ed4,

title = "Additive manufacturing of isotropic NdFeB PPS bonded permanent magnets",

abstract = "Extrusion based additive manufacturing of polymer composite magnets can increase the solid loading volume fraction with greater mechanical force through the printing nozzle as compared to traditional injection molding process. About 63 vol% of isotropic NdFeB magnet powders were compounded with 37 vol% of polyphenylene sulfide and bonded permanent magnets were fabricated while using Big Area Additive Manufacturing without any degradation in magnetic properties. The polyphenylene sulfide bonded magnets have a tensile stress of 20 MPa, almost double than that of nylon bonded permanent magnets. Additively manufactured and surface-protective-resin coated bonded magnets meet the industrial stability criterion of up to 175 °C with a flux-loss of 2.35% over 1000 h. They also exhibit better corrosion resistance behavior when exposed to acidic (pH = 1.35) solution for 24 h and also annealed at 80 °C over 100 h (at 95% relative humidity) over without coated magnets. Thus, polyphenylene sulfide bonded, additively manufactured, protective resin coated bonded permanent magnets provide better thermal, mechanical, and magnetic properties.",

keywords = "Additive manufacturing, Magnetic properties, NdFeB PPS bonded permanent magnets, Tensile strength, Thermal stability",

author = "{Parans Paranthaman}, M. and Volkan Yildirim and Lamichhane, {Tej Nath} and Begley, {Benjamin A.} and Post, {Brian K.} and Hassen, {Ahmed A.} and Sales, {Brian C.} and Kinjal Gandha and Nlebedim, {Ikenna C.}",

note = "Publisher Copyright: {\textcopyright} 2020 by the authors.",

year = "2020",

month = aug,

doi = "10.3390/ma13153319",

language = "English",

volume = "13",

journal = "Materials",

issn = "1996-1944",

publisher = "MDPI",

number = "15",

}

TY - JOUR

T1 - Additive manufacturing of isotropic NdFeB PPS bonded permanent magnets

AU - Parans Paranthaman, M.

AU - Yildirim, Volkan

AU - Lamichhane, Tej Nath

AU - Begley, Benjamin A.

AU - Post, Brian K.

AU - Hassen, Ahmed A.

AU - Sales, Brian C.

AU - Gandha, Kinjal

AU - Nlebedim, Ikenna C.

PY - 2020/8

Y1 - 2020/8

N2 - Extrusion based additive manufacturing of polymer composite magnets can increase the solid loading volume fraction with greater mechanical force through the printing nozzle as compared to traditional injection molding process. About 63 vol% of isotropic NdFeB magnet powders were compounded with 37 vol% of polyphenylene sulfide and bonded permanent magnets were fabricated while using Big Area Additive Manufacturing without any degradation in magnetic properties. The polyphenylene sulfide bonded magnets have a tensile stress of 20 MPa, almost double than that of nylon bonded permanent magnets. Additively manufactured and surface-protective-resin coated bonded magnets meet the industrial stability criterion of up to 175 °C with a flux-loss of 2.35% over 1000 h. They also exhibit better corrosion resistance behavior when exposed to acidic (pH = 1.35) solution for 24 h and also annealed at 80 °C over 100 h (at 95% relative humidity) over without coated magnets. Thus, polyphenylene sulfide bonded, additively manufactured, protective resin coated bonded permanent magnets provide better thermal, mechanical, and magnetic properties.

AB - Extrusion based additive manufacturing of polymer composite magnets can increase the solid loading volume fraction with greater mechanical force through the printing nozzle as compared to traditional injection molding process. About 63 vol% of isotropic NdFeB magnet powders were compounded with 37 vol% of polyphenylene sulfide and bonded permanent magnets were fabricated while using Big Area Additive Manufacturing without any degradation in magnetic properties. The polyphenylene sulfide bonded magnets have a tensile stress of 20 MPa, almost double than that of nylon bonded permanent magnets. Additively manufactured and surface-protective-resin coated bonded magnets meet the industrial stability criterion of up to 175 °C with a flux-loss of 2.35% over 1000 h. They also exhibit better corrosion resistance behavior when exposed to acidic (pH = 1.35) solution for 24 h and also annealed at 80 °C over 100 h (at 95% relative humidity) over without coated magnets. Thus, polyphenylene sulfide bonded, additively manufactured, protective resin coated bonded permanent magnets provide better thermal, mechanical, and magnetic properties.

KW - Additive manufacturing

KW - Magnetic properties

KW - NdFeB PPS bonded permanent magnets

KW - Tensile strength

KW - Thermal stability

UR - http://www.scopus.com/inward/record.url?scp=85089733940&partnerID=8YFLogxK

U2 - 10.3390/ma13153319

DO - 10.3390/ma13153319

M3 - Article

AN - SCOPUS:85089733940

SN - 1996-1944

VL - 13

JO - Materials

JF - Materials

IS - 15

M1 - 3319

ER -

Additive manufacturing of isotropic NdFeB PPS bonded permanent magnets

Abstract

Funding

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this