Direct observation of the interface reaction dynamics of the NdCeFeB phase <i>via in situ</i> annealing & quenching STEM.

ABSTRACT: Although the Rare Earth (RE)₂Fe₁₄B type magnets were invented in the 1980s and are widely used worldwide. Yet, the phase formation and dissolution mechanisms are still not crystal clear. The reaction dynamics between rare earth elements (REE) and the iron-enriched matrix are essential to understanding the formation of hard magnetic REE-Fe-B phase or, conversely, phase dissociation and performance degeneration. Developing a reaction mechanism is fundamentally important for process engineering and performance manipulation. This work investigates the interface reaction dynamics between REE and an iron enriched matrix via in situ scanning transmission electron microscopy (STEM). The focused ion beam (FIB) procedure and in situ STEM experiments are specifical

SUBMITTER: Zhu X 

PROVIDER: S-EPMC11704662 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature