Low temperature microhardness of Xe-intercalated fullerite C₆₀
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Low temperature microhardness of Xe-intercalated fullerite C₆₀
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| Creator |
Fomenko, L.S.
Lubenets, S.V. Natsik, V.D. Cassidy, D. Gadd, G.E. Moricca, S. Sundqvist, B. |
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| Subject |
Низкотемпературная физика пластичности и прочности
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| Description |
The Vickers microhardness of Xe-intercalated polycrystalline fullerite C₆₀ (XexC₆₀, x ≃ 0.35) is measured in a moderately low temperature range of 77 to 300 K. A high increase in the microhardness of the material (by a factor of 2 to 3) as compared to that of pure C₆₀ single crystals is observed. It is shown that the step-like anomaly in the temperature dependences of the microhardness of pure C₆₀ single crystals recorded under the orientational fcc-sc phase transition (Tc ≃ 260 K) is also qualitatively retained for XexC₆₀, but its onset is shifted by 40 K towards lower temperatures and the step becomes less distinct and more smeared. This behavior of ̅NV(T) correlates with x-ray diffraction data, the analysis of which revealed a considerable influence of xenon interstitial atoms on the peculiar features of fullerite thermal expansion due to orientational phase transitions (see the paper by A.I. Prokhvatilov et al. in this issue). |
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| Date |
2017-06-14T11:54:27Z
2017-06-14T11:54:27Z 2005 |
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| Type |
Article
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| Identifier |
Low temperature microhardness of Xe-intercalated fullerite C₆₀ / L.S. Fomenko, S.V. Lubenets1, V.D. Natsik, D. Cassidy, G.E. Gadd, S. Moricca, and B. Sundqvist // Физика низких температур. — 2005. — Т. 31, № 5. — С. 596-601. — Бібліогр.: 25 назв. — англ.
0132-6414 PACS: 81.05.Tp, 62.20.Qp, 81.40.Cd http://dspace.nbuv.gov.ua/handle/123456789/121467 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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