Reactive vapor-phase dealloying-alloying turns oxides into sustainable bulk nano-structured porous alloys.

ABSTRACT: For millennia, alloying has been the greatest gift from metallurgy to humankind: a process of mixing elements, propelling our society from the Bronze Age to the Space Age. Dealloying, by contrast, acts like a penalty: a corrosive counteracting process of selectively removing elements from alloys or compounds, degrading their structural integrity over time. We show that when these two opposite metallurgical processes meet in a reactive vapor environment, profound sustainable alloy design opportunities become accessible, enabling bulk nanostructured porous alloys directly from oxides, with zero carbon footprint. We introduce thermodynamically well-grounded treasure maps that turn the intuitive opposition between alloying and dealloying into harmony, facilitating a quantitative approach to na

SUBMITTER: Wei S 

PROVIDER: S-EPMC11654685 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature