Complexions at the iron-magnetite interface.

ABSTRACT: Synthesizing distinct phases and controlling crystalline defects are key concepts in materials design. These approaches are often decoupled, with the former grounded in equilibrium thermodynamics and the latter in nonequilibrium kinetics. By unifying them through defect phase diagrams, we can apply phase equilibrium models to thermodynamically evaluate defects-including dislocations, grain boundaries, and phase boundaries-establishing a theoretical framework linking material imperfections to properties. Using scanning transmission electron microscopy (STEM) with differential phase contrast (DPC) imaging, we achieve the simultaneous imaging of heavy Fe and light O atoms, precisely mapping the atomic structure and chemical composition at the iron-magnetite (Fe/Fe₃O₄) in

SUBMITTER: Zhou X 

PROVIDER: S-EPMC11923288 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature