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IJPAP Vol.46(11) [November 2008] >


Title: Diamond and diamond-like carbon in laser heated diamond anvil cell at 16.5 GPa and above 2000 K from pyrolitic graphite
Authors: Kumar, N R Sanjay
Shekar, N V Chandra
Sekar, M
Subramanian, N
Mohan, P Chandra
Srinivasan, M P
Parameswaran, P
Sahu, P Ch
Keywords: Pyrolytic graphite
Synthesis of diamond
Diamond anvil cell
Laser heating
Micro-Raman
Scanning electron image
Issue Date: Nov-2008
Publisher: CSIR
Abstract: Diamond and diamond like carbon have been synthesized by direct conversion of pyrolitic carbon at pressure, 16.5 GPa and temperature, ~ 2000 K using a Laser Heated Diamond Anvil Cell (LHDAC) facility. The formation of diamond and diamond like carbon is confirmed by micro-Raman and scanning electron microscopy. The synthesised material has been found as opaque and colourless. The diamond crystals formed in this process are of micrometer size having regular facets. In this experiment, the diamond formation pressure is much lower than reported in shock pressure experiments.
Page(s): 783-787
ISSN: 0019-5596
Source:IJPAP Vol.46(11) [November 2008]

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