On the mechanical properties of C60 fullerite crystals

Ossipyan, Yu. A.; Bobrov, V. S.; Grushko, Yu. S.; Dilanyan, R. A.; Zharikov, O.V.; Lebyodkin, M.A.; Sheckhtman, V.Sh.

doi:10.1007/bf00332573

Cited by 25 publications

(4 citation statements)

References 9 publications

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“…Knoop hardness data of the C 60 films and the C 70 film were obtained by a Buehler microhardness tester at load 5 g. The film A and film B of C 60 exhibited a hardness of about 0.24 and 0.13 GPa, respectively, while the hardness of the C 70 film was about 1.9 GPa. The data of the C 60 films were close to those of Ossipyan et al 15 who showed a Vickers microhardness of about 0.12-0.18 GPa for C 60 crystal grown from solution. Gupta et al 4 reported a hardness of about 1.2 -2.0 GPa obtained by nanoindentation.…”

Section: A Sem Micrographs Hardness and Ir Spectra Of Films And Sosupporting

confidence: 87%

Tribological properties of fullerenes C₆₀ and C₇₀ microparticles

et al. 1996

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The frictional behaviors of fullerenes C 60 and C 70 were studied because they were speculated to be solid lubricants. For the sublimated pure C 60 films on Si(001), a high friction coefficient (0.55-0.8) was observed under different loads and pin materials. For the C 70 film, the friction coefficient showed a pin dependence, which changed from 0.5 with an Al 2 O 3 pin to about 0.9 with a 440 stainless steel pin. The relatively high friction coefficients of C 60 and C 70 films were due to the tendency of the C 60 and C 70 particles to clump and compress into high shear strength layers rather than due to the impurities in the fullerenes. The benzene-solvated C 60 ? 4C 6 H 6 and C 70 ? xC 6 H 6 showed a lowered friction coefficient (0.25 for C 60 ? 4C 6 H 6 and 0.3 for C 70 ? xC 6 H 6 ), which might result from the lowered shear strength of the hcp structure of C 60 ? 4C 6 H 6 and C 70 ? xC 6 H 6 molecular crystals in which the benzene molecules were intercalated.

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Section: A Sem Micrographs Hardness and Ir Spectra Of Films And Sosupporting

confidence: 87%

Tribological properties of fullerenes C₆₀ and C₇₀ microparticles

et al. 1996

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“…Since bulk crystals composed of fullerene C 60 molecules were first synthesized, 1 their crystal structures [2][3][4] and mechanical properties [5][6][7][8][9][10][11][12] have been investigated. At room temperature, C 60 molecules bond by van der Waals forces and crystallize in a face-centered-cubic structure with a lattice constant of 1.417 nm.…”

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confidence: 99%

Buckling of C60 whiskers

Asaka

Kato

Miyazawa

et al. 2006

Applied Physics Letters

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The authors demonstrated the mechanics of materials for crystalline whiskers composed of C 60 molecules; compressive deformation of the whiskers was observed by in situ transmission electron microscopy with simultaneous force measurement by means of an optical cantilever method, as used in atomic force microscopy. In response to compression along the long axis, the whiskers bent first elastically, then buckled. A whisker with 160 nm diameter fractured brittlely at a strain of 0.08. According to Euler's formula, Young's modulus of the whisker was estimated to be 32-54 GPa, which is 160%-650% of that of C 60 bulk crystals.

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“…Currently, the most common fullerene is the C 60 molecule, which is an icosahedral hollow structure consisting of 60 sp2 hybridized carbon atoms lying on the surface of a sphere [9][10][11]. The C 60 molecules have high mechanical rigidity, stability, and strength but a fullerite crystal consisting of the C 60 molecules is a fairly soft material [12][13][14][15]. Fullerite in the face-centered cubic (fcc) phase has the lowest density (1.6 g/cm 3 ) compared to graphite and diamond.…”

Section: Introductionmentioning

confidence: 99%

Computational Analysis of Strain-Induced Effects on the Dynamic Properties of C60 in Fullerite

et al. 2022

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A hybrid discrete-continuous physical and mathematical model is used to study what deformation characteristics cause the rolling effect of C60 fullerene in a fullerite crystal. The interaction of fullerene atoms with surrounding molecules is described using a centrally symmetric interaction potential, in which the surrounding molecules are considered as a spherical surface of uniformly distributed carbon atoms. The rotational motion of fullerene is described by the Euler dynamic equations. The results of a numerical study of the influence of the rate, magnitude, and direction of strain on the dynamic characteristics of the rotational and translational motion of C60 fullerene in a crystalline fragment are presented.

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On the mechanical properties of C60 fullerite crystals

Cited by 25 publications

References 9 publications

Tribological properties of fullerenes C₆₀ and C₇₀ microparticles

Tribological properties of fullerenes C₆₀ and C₇₀ microparticles

Buckling of C60 whiskers

Computational Analysis of Strain-Induced Effects on the Dynamic Properties of C60 in Fullerite

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On the mechanical properties of C60 fullerite crystals

Cited by 25 publications

References 9 publications

Tribological properties of fullerenes C60 and C70 microparticles

Tribological properties of fullerenes C60 and C70 microparticles

Buckling of C60 whiskers

Computational Analysis of Strain-Induced Effects on the Dynamic Properties of C60 in Fullerite

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Product

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Tribological properties of fullerenes C₆₀ and C₇₀ microparticles

Tribological properties of fullerenes C₆₀ and C₇₀ microparticles