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- Article name
- Hexagonal diamond phase in detonation synthesized nano- and microdiamonds
- Authors
- VISOTINA E. A., , evysotina@gmail.com, Keldysh Research Center, NITU "MISIS", Moscow, Russia
RIZAKHANOV R. N., , nanocentre@kerc.msk.ru, Keldysh Research Center, Moscow, Russia
SIGALAEV S. K., , nanocentre@kerc.msk.ru, Keldysh Research Center, Moscow, Russia
SHEVCHENKO N. V., , shevchenkonvnano@mail.ru, "Petrovskiy Scientific Center "FUGAS", Moscow, Russia
EFREMOV V. P., , v.p.efremov@ yandex.ru, Joint Institute for High Temperatures of RAS, Moscow, Russia
OBRUCHKOVA L. R., , obruchkoa.liliya@ mail.ru, Joint Institute for High Temperatures of RAS, Moscow, Russia
- Keywords
- detonation synthesis / detonation nanodiamonds and microdiamonds / cubic and hexagonal carbon / phase composition / electron microscopy / Raman scattering
- Year
- 2021 Issue 1 Pages 35 - 39
- Code EDN
- Code DOI
- 10.52190/2073-2562_2021_1_35
- Abstract
- The properties and phase composition of nano- and microcrystals of diamond of detonation synthesis were investigated in order to reveal the hexagonal phase of sp3-carbon in the structures under study. Electron microscopic studies have established that micro-diamond particles contain alternating inclusions of hexagonal sp3-carbon, which is manifested on the edge fractures and faces of micro-diamonds. The registration of microdiamond's Raman spectra in the visible region showed the complex phase composition of these microstructures established the presence in it of hexagonal lonsdaleite and nanoparticles with a cubic carbon structure. All used brands detonation nanodiamond samples from different manufacturers contained hexagonal sp3-carbon recorded by Raman scattering. The manifestations of hexagonal sp3-carbon revealed in the studied samples, apparently, serve as evidence of the presence of lonsdaleite inclusions in detonation synthesed nano- and microdiamonds.
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