In Situ Visualization of Electron Beam-Driven High-Entropy Alloy Crystallization.

ABSTRACT: Achieving compositionally uniform high-entropy alloy (HEA) nanoparticles via reduction-based synthesis remains challenging due to variations in elemental reduction, diffusion, and phase stability. Using in situ transmission electron microscopy (TEM), this study visualizes the electron beam-induced crystallization of amorphous high-entropy glycerolate (HE-glycerolate) films composed of Mg, Mn, Co, Ni, and Zn. The transformation proceeds through phase separation, radiolytic reduction, and localized atomic rearrangement, producing single-phase face-centered cubic (fcc) HEA nanoparticles with uniform cuboidal morphology and dominant {100} facets. Compared to thermal annealing, the electron beam pathway offers finer control over composition and morphology by limiting atomic mobility and prevent

SUBMITTER: Amiri A 

PROVIDER: S-EPMC12786330 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature