Anisotropic SmFe₁₀V₂ Bulk Magnets with Enhanced Coercivity via Ball Milling Process.

ABSTRACT: Anisotropic bulk magnets of ThMn₁₂-type SmFe₁₀V₂ with a high coercivity (H_c) were successfully fabricated. Powders with varying particle sizes were prepared using the ball milling process, where the particle size was controlled with milling time. A decrease in H_c occurred in the heat-treated bulk pressed from large-sized powders, while heavy oxidation excessively occurred in small powders, leading to the decomposition of the SmFe₁₀V₂ (1-12) phase. The highest H_c of 8.9 kOe was achieved with powders ball-milled for 5 h due to the formation of the grain boundary phase. To improve the maximum energy product ((BH)_max), which is only 2.15 MGOe in the isotropic bu

SUBMITTER: Zhou TH 

PROVIDER: S-EPMC11357663 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature