Tuesday publication update! 📖 In this newest publication, authors have looked at magnetic material phase transformation using the #FusionAX system! Despite their invention in the 1980s, RE₂Fe₁₄B magnets remain indispensable in modern technology—yet their phase formation and dissolution mechanisms are still not fully understood. Understanding the reaction dynamics between rare earth elements (REE) and the iron-enriched matrix is key to optimizing magnet performance, stability, and longevity.
Using in situ scanning transmission electron microscopy (STEM), the authors investigated these reaction dynamics at the atomic scale, revealing:
🔥 Solid–liquid interface dynamics between Fe₂₃B₆ and REE-rich liquid phases, frozen at room temperature via rapid quenching.
🔍 Oxygen-involved vs. oxygen-free reactions, captured in a single specimen using an advanced focused ion beam (FIB) procedure.
⚛️ Lattice evolution insights, showing how REE atoms embed into Fe₂₃B₆ during high-temperature reactions.
This study highlights in situ STEM & FIB as powerful tools for decoding the high-temperature reaction mechanisms in complex magnetic systems and also shows great examples of FIB preparation with high spatial resolution!
Want to read the entire paper?
Find it here!
https://www.doi.org/10.1039/D4RA03708A
