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Big Area Additive Manufacturing of High Performance Bonded NdFeB Magnets

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Figure

Figure 1. Schematics. (a) Image of the nozzle depositing layers of magnetic materials on the print bed; (b) Schematic of the melt and extrude process, right underneath the nozzle is a printed magnet in a hollow cylinder shape with an OD × ID of ~4.5 inch × 3 inch.
Figure 2. BAAM and IM magnets; (magnetization curves for BAAM magnets measured at elevated temperatures from 300 K to 400 K
Figure 3. Thermal stability of the BAAM magnets. Flux aging loss for BAAM magnet as a function of (a) Aging Time (0–1000 h); (b) Temperature (350 K, 400 K, and 450 K) after 200 hours of exposure.
Figure 5. Mechanical properties of the BAAM fabricated NdFeB magnets. Tensile stress-strain curves of the BAAM fabricated Nd-Fe-B magnets; the inset shows the images of the four samples after tensile testing indicating the location of failure.

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