Coherent interfaces govern direct transformation from graphite to diamond.

ABSTRACT: Understanding the direct transformation from graphite to diamond has been a long-standing challenge with great scientific and practical importance. Previously proposed transformation mechanisms^1-3, based on traditional experimental observations that lacked atomistic resolution, cannot account for the complex nanostructures occurring at graphite-diamond interfaces during the transformation^4,5. Here we report the identification of coherent graphite-diamond interfaces, which consist of four basic structural motifs, in partially transformed graphite samples recovered from static compression, using high-angle annular dark-field scanning transmission electron microscopy. These observations provide insight into possible pathways of the transformation. Theoretical calculation

SUBMITTER: Luo K 

PROVIDER: S-EPMC9300464 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature