Shock-formed carbon materials with intergrown sp³- and sp²-bonded nanostructured units.

ABSTRACT: Studies of dense carbon materials formed by bolide impacts or produced by laboratory compression provide key information on the high-pressure behavior of carbon and for identifying and designing unique structures for technological applications. However, a major obstacle to studying and designing these materials is an incomplete understanding of their fundamental structures. Here, we report the remarkable structural diversity of cubic/hexagonally (c/h) stacked diamond and their association with diamond-graphite nanocomposites containing sp³-/sp²-bonding patterns, i.e., diaphites, from hard carbon materials formed by shock impact of graphite in the Canyon Diablo iron meteorite. We show evidence for a range of intergrowth types and nanostructures containing

SUBMITTER: Nemeth P 

PROVIDER: S-EPMC9335297 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature