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Proceedings Paper

Synthesis of carbyne from amorphous line-chain carbon and pyrographite
Author(s): M. B. Guseva; V. M. Babina; M. Boustie; Vladimir E. Fortov; J. P. Romain; A. Z. Zhuk; V. G. Babaev; V. V. Khvostov
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Paper Abstract

Two types of carbon materials after the powerful laser influence were studied. First - low grade pyrolitic graphite, second - 10 micron film of the amorphous line- chain carbon. The film was prepared by the method of Ar ion assisted deposition of carbon plasma. The samples were irradiated by a 1.06 micro wavelength Nd laser in vacuum 0.3 Pa. The energy of the laser pulse was approximately 70 J, the duration 580 ps and intensity 440 GW/cm2. After the experiments the samples were examined by means of transmission electron microscopy. Auger and Raman spectroscopy. The formation of carbyne crystals with lattice parameters 'a' 0.516 and 0.533 nm were detected in the shocked samples. A small amount of nanodiamond was detected, too. An interesting feature is the formation of large carbyne crystals in pyrographite. Raman spectra of recovered materials exhibit strong peaks at the frequencies corresponding to the oscillations of carbon atoms in line- chain structures.

Paper Details

Date Published: 20 October 1998
PDF: 6 pages
Proc. SPIE 3484, Lasers in Synthesis, Characterization, and Processing of Diamond, (20 October 1998); doi: 10.1117/12.328213
Show Author Affiliations
M. B. Guseva, Moscow State Univ. (Russia)
V. M. Babina, Moscow State Univ. (Russia)
M. Boustie, Univ. de Poitiers (France)
Vladimir E. Fortov, High Energy Density Research Ctr. (Russia)
J. P. Romain, Univ. de Poitiers (France)
A. Z. Zhuk, High Energy Density Research Ctr. (Russia)
V. G. Babaev, Moscow State Univ. (Russia)
V. V. Khvostov, Moscow State Univ. (Russia)

Published in SPIE Proceedings Vol. 3484:
Lasers in Synthesis, Characterization, and Processing of Diamond
Vitali I. Konov; Victor G. Ralchenko, Editor(s)

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