Open AccessRaman spectroscopy for studying the synthesis of conducting BC3 hetero-diamonds in diamond anvil cell under high temperature
Author(s) -
А. А. Быков,
Pavel V. Zinin,
К. М. Булатов,
В. П. Филоненко,
И. Б. Кутуза
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1556/1/012045
Subject(s) - raman spectroscopy , materials science , diamond anvil cell , diamond , boron , phase (matter) , analytical chemistry (journal) , sintering , spectroscopy , high pressure , infrared spectroscopy , infrared , mineralogy , composite material , optics , chemistry , thermodynamics , physics , organic chemistry , chromatography , quantum mechanics
A direct transformation of the sintered BC 3 phase to a novel diamond-like d -BC 3 phase was observed in a diamond anvil cell (DAC) at high temperature, 2500 K and high pressure, 22 GPa. For heating a specimen in a DAC a laser heating (LH) system combined with an acousto-optical filter and synchronized with a video camera was used. Combining the LH system with the acousto-optical filter allows measurement of the temperature distribution under infrared (1064 nm) LH of a specimen under high pressure in a DAC. The starting material with a composition BC 3 was obtained by sintering a powder of nanodiamonds with a powder of boron microparticles at 6.0 GPa during 150 s heating at 1200 °C. The quenched BC 3 specimen was studied by the Raman spectroscopy.