Influence of cyclic thermal treatment near the first order phase transition on the supramolecular structure of C60

V. T. Lebedev, G. Török, G. A. Evmenenko, I. V. Golosovsky, Gy Kali, L. Cser, D. N. Orlova, A. I. Sibilev, V. P. Budtov

Research output: Chapter

Abstract

We have studied the modification of supramolecular structure of fullerene (precipitated from supersaturated solution) subjected by cyclic thermal treatment. The investigation of supramolecular structure of C60 crystals was performed by neutron diffraction and small angle scattering at different stages of cyclic thermal treatment. The characteristic domain size inside the crystallites (from the diffraction peaks broadening obtained) was D to approximately 30-50 nm corresponding to the correlation radius of inhomogeneities Rc≈D obtained from the small angle scattering measurements. Using the SANS measurements we found also small inhomogeneities with radius of rc to approximately 3-4 nm forming structures at the crystal surface with the characteristic period of approximately 2 rc to approximately 10 nm. The cyclic thermal treatment of sample reduced the concentration of large defects for approximately 6% vol. and the fragmentation of surface structures at the scale approximately 10 nm. We have analyzed the changing of surface structure, applying a model for small angle scattering intensity I = I0/(1+Rc2q2)β/2, where the β parameter yields the fractal dimension Ds = 6-β of the surface.

Original languageEnglish
Title of host publicationMaterials Science Forum
PublisherTrans Tech Publ
Volume321
Publication statusPublished - 2000
EventProceedings of the 1998 6th European Powder Diffraction Conference (EPDIC 6) - Budapest, Hung
Duration: aug. 22 1998aug. 25 1998

Other

OtherProceedings of the 1998 6th European Powder Diffraction Conference (EPDIC 6)
CityBudapest, Hung
Period8/22/988/25/98

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Phase transitions
Heat treatment
Scattering
Surface structure
Fullerenes
Crystals
Fractal dimension
Neutron diffraction
Crystallites
Diffraction
Defects

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Lebedev, V. T., Török, G., Evmenenko, G. A., Golosovsky, I. V., Kali, G., Cser, L., ... Budtov, V. P. (2000). Influence of cyclic thermal treatment near the first order phase transition on the supramolecular structure of C60. In Materials Science Forum (Vol. 321). Trans Tech Publ.

Influence of cyclic thermal treatment near the first order phase transition on the supramolecular structure of C60. / Lebedev, V. T.; Török, G.; Evmenenko, G. A.; Golosovsky, I. V.; Kali, Gy; Cser, L.; Orlova, D. N.; Sibilev, A. I.; Budtov, V. P.

Materials Science Forum. Vol. 321 Trans Tech Publ, 2000.

Research output: Chapter

Lebedev, VT, Török, G, Evmenenko, GA, Golosovsky, IV, Kali, G, Cser, L, Orlova, DN, Sibilev, AI & Budtov, VP 2000, Influence of cyclic thermal treatment near the first order phase transition on the supramolecular structure of C60. in Materials Science Forum. vol. 321, Trans Tech Publ, Proceedings of the 1998 6th European Powder Diffraction Conference (EPDIC 6), Budapest, Hung, 8/22/98.
Lebedev VT, Török G, Evmenenko GA, Golosovsky IV, Kali G, Cser L et al. Influence of cyclic thermal treatment near the first order phase transition on the supramolecular structure of C60. In Materials Science Forum. Vol. 321. Trans Tech Publ. 2000
Lebedev, V. T. ; Török, G. ; Evmenenko, G. A. ; Golosovsky, I. V. ; Kali, Gy ; Cser, L. ; Orlova, D. N. ; Sibilev, A. I. ; Budtov, V. P. / Influence of cyclic thermal treatment near the first order phase transition on the supramolecular structure of C60. Materials Science Forum. Vol. 321 Trans Tech Publ, 2000.
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AU - Lebedev, V. T.

AU - Török, G.

AU - Evmenenko, G. A.

AU - Golosovsky, I. V.

AU - Kali, Gy

AU - Cser, L.

AU - Orlova, D. N.

AU - Sibilev, A. I.

AU - Budtov, V. P.

PY - 2000

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