Diamond-Graphene Composite Nanostructures

• DOI: 10.1021/acs.nanolett.0c00556
• Publication Date: 2020-04-08T18:58:48Z
• Authors: Péter Németh; Kit McColl; Rachael L. Smith; Mara Murri; Laurence A. J. Ga...; Matteo Alvaro; Béla Pécz; Adrian P. Jones; Furio Corà; Christoph G. Salz...; Paul F. McMillan
• Keywords: Carbon fibers; Ductility (Earth science)

The search for new nanostructural topologies composed of elemental carbon is driven by technological opportunities as well the need to understand structure and evolution materials formed planetary shock impact events in laboratory syntheses. We describe two families diamond-graphene (diaphite) phases constructed from layered bonded sp3 sp2 units provide a framework classifying members this class materials. nanocomposite structures are identified within both natural diamonds laboratory-shocked samples possess diffraction features that have previously been assigned lonsdaleite postgraphite phases. diaphite nanocomposites represent high-performance predicted combine superhard qualities diamond with high fracture toughness ductility enabled graphitic atomically defined interfaces between sp3- sp2-bonded nanodomains.