Elastic properties of ultrahard fullerites
Blank, V. D. ; Levin, V. M. ; Prokhorov, V. M. ; Buga, S. G. ; Dubitskii, G. A. ; Serebryanaya, N. R.
Springer
Published 1998
Springer
Published 1998
| ISSN: |
1090-6509
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|---|---|
| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Physics
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| Notes: |
Abstract The elastic properties of C60 fullerite samples synthesized under pressure P=13.0 GPa at high temperatures were investigated using acoustic microscopy. The velocities of longitudinal (c L=17–26 km/s) and transverse (c T=7.2–9.6 km/s) elastic waves in the samples were measured. It was established that the longitudinal sound velocity of ultrahard fullerites is higher than that of any other known solid. The bulk modulus of these ultrahard samples is higher than that of diamond and reaches a value greater than 1 TPa. The high bulk modulus, the relatively large shear moduli, and the substantial Poisson ratio indicate that the structure of the ultrahard fullerites is fundamentally different from that of diamond.
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| Type of Medium: |
Electronic Resource
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| URL: |