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Figure 10
(A) Schematic representations illustrate α-Fe/Pr2Fe14B homogeneous structure (HS), gradient structure (GS) characterized by spatial variation in grain size, and gradient compensation structure (GCS) featuring reverse gradient variations in both grain size and α-Fe content. All designed nanostructures maintain a consistent 20% α-Fe composition. (B) A gradient variation in the crystal orientation of Pr2Fe14B and α-Fe phases can be achieved. The crystal orientations [110] for the α-Fe phase weaken gradually as indicated by the decline in their corresponding diffraction peak intensity, accompanied by a decrease in grain size simultaneously. (C)–(E) Cross-sectional TEM images showing the mentioned grain size. (F) Remanence (Br) and coercivity (Hc) values are presented for representative isotropic α-Fe/Pr2Fe14B nanocomposite magnets prepared using different methods. Adapted with permission from (Li, Lou et al., 2022BB83). Copyright 2022 American Chemical Society.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 57| Part 3| June 2024| Pages 606-622
https://doi.org/10.1107/S1600576724003674
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