STRUCTURES AND PHYSICAL-PROPERTIES OF SUPERHARD AND ULTRAHARD 3D POLYMERIZED FULLERITES CREATED FROM SOLID C-60 BY HIGH-PRESSURE HIGH-TEMPERATURE TREATMENT

Authors
BLANK VD BUGA SG SEREBRYANAYA NR DUBITSKY GA MAVRIN BN POPOV MY BAGRAMOV RH PROKHOROV VM SULYANOV SN KULNISKIY BA TATYANIN YV
Citation
Vd. Blank et al., STRUCTURES AND PHYSICAL-PROPERTIES OF SUPERHARD AND ULTRAHARD 3D POLYMERIZED FULLERITES CREATED FROM SOLID C-60 BY HIGH-PRESSURE HIGH-TEMPERATURE TREATMENT, Carbon (New York), 36(5-6), 1998, pp. 665-670
Citations number
10
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
Carbon (New York) → ACNP
ISSN journal
00086223
Volume
36
Issue
5-6
Year of publication
1998
Pages
665 - 670
Database
ISI
SICI code
0008-6223(1998)36:5-6<665:SAPOSA>2.0.ZU;2-J
Abstract
Superhard and ultrahard phases of C-60 were synthesized by quenching a t high pressures up to 13 GPa and high temperatures in the 300-2100 K range. The structures of the samples are discussed on the basis of X-r ay and Raman spectra and electron microscopy data. The following physi cal properties of hard samples were studied: specific gravity; specifi c heat in the range 400-600 K; sound velocities; elastic moduli; elect rical properties; resistance to uniaxial stress; stability against oxi dation. These properties are different from those of diamond and other carbon forms. The hardness of ultrahard fullerites exceeds the hardne ss of diamond. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.