3D printing of anisotropic Sm–Fe–N nylon bonded permanent magnets
- Ames Lab., Ames, IA (United States). Critical Materials Inst.
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States). Bredesen Center for Interdisciplinary Research and Graduate Education
Fabricating a bonded magnet with a near-net shape in suitable thermoplastic polymer binders is of paramount importance in the development of cost-effective energy technologies. In this work, anisotropic Sm2Fe17N3 (Sm–Fe–N) bonded magnets are additively printed using SmFeN anisotropic magnetic particles in a polymeric binder polyamide-12 (PA12). The anisotropic SmFeN bonded magnets are fabricated by Big Area Additive Manufacturing followed by post-printing alignment in a magnetic field. Optimal post-alignment results in an enhanced remanence of ~0.68 T in PA12 reflected in a parallel-oriented (aligned) measured direction. The maximum energy product achieved for the additively printed anisotropic bonded magnet of Sm–Fe–N in PA12 polymer is 78.8 KJ m-3. Our results show advanced processing flexibility with 3D printing of the development of SmFeN nylon bonded magnets designed for applications with no critical rare earth magnets.
- Research Organization:
- Ames Laboratory (AMES), Ames, IA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Wind Energy Technologies Office; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Manufacturing Office; USDOE
- Grant/Contract Number:
- AC05‐00OR22725; AC02‐07CH11358; AC02-07CH11358; AC05-00OR22725; DE‐AC05‐00OR22725; DE‐AC02‐07CH11358
- OSTI ID:
- 1831290
- Alternate ID(s):
- OSTI ID: 1827091; OSTI ID: 1831292; OSTI ID: 1833002; OSTI ID: 1883677; OSTI ID: 1994746
- Report Number(s):
- IS-J-10,660; IS-J-10,600
- Journal Information:
- Engineering Reports, Vol. 3, Issue 12; ISSN 2577-8196
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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