High Pressure Synthesis, Structure, Physical and Mechanical Properties of C60 Fullerite Superhard and Ultrahard Phases

Authors :: N.A. Lvova
S. N. Sulyanov
G.A. Dubitsky
N.R. Serebryanaya
M. Yu Popov
Sergei G. Buga
V. M. Prokhorov
V.D. Blank
Source :: THE REVIEW OF HIGH PRESSURE SCIENCE AND TECHNOLOGY. 7:972-974
Publication Year :: 1998
Publisher :: The Japan Society of High Pressure Science and Technology, 1998.
Abstract: New data on the synthesis conditions, structure and physical properties of the superhard and ultrahard samples created from solid C60 by static high-pressure high-temperature treatment in the range of 9. 5-13 GPa ; 600 -2100 K are represented. Measured velocities of the compressional sound waves in the ultrahard fullerites exceed the highest values for diamond. Bulk elastic modulus for the hardest fullerite samples more than twice exceeds that of diamond. Ultrahard fullerite tip is applied for measurements of hardness of diamond and fullerites. Maximum hardness of fullerite is measured to be 310±40 GPa.

Subjects :: Range (particle radiation)
Materials science
High pressure
engineering
Diamond
General Materials Science
Nanotechnology
General Chemistry
Composite material
engineering.material
Condensed Matter Physics
Elastic modulus
Sound wave

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