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In situ TEM study of Nd rich phase in NdFeB magnet

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Figure

Table 1
Fig. 1. Bright-field TEM micrograph of the as-received NdFeBmagnet, showing Nd2Fe14B matrix grains and Nd-rich grainboundary phase.
Fig. 4. SAD patterns from Nd2oxidation. (a) Room temperature; (b) 300Fe14B phase in a hot stage in a TEM, showing the dissociation process of the Nd2Fe14B phase by 1C; and (c) 400 1C.
Fig. 6. High-resolution TEM micrograph after oxidation at400are circled) embedded in 1C for 2 days, showing amorphous Nd-oxide regions (some a-Fe matrix.

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