کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1418420 | 986001 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of synthesis temperature on hardness of carbon phases prepared from C60 and nanosized diamonds under pressure
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
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چکیده انگلیسی
Vicker's hardness and Raman scattering spectra have been studied for carbon phases prepared from C60 fullerene and nanosized diamonds at high temperatures and a pressure of 6Â GPa. It was found that the hardness dependence on annealing temperature has a maximum near â¼1100Â K for both fullerene and nanosized diamonds as initial materials. This temperature is only slightly higher than the temperature at which the C60 cage collapses, and appears to correspond to the termination of intercluster bonding in the case of nanosized diamonds. The hardness maximum is interpreted as a result of competition between an increase in intercluster/intercage bonding and local instability for graphitic-like ordering.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 44, Issue 10, August 2006, Pages 2027-2031
Journal: Carbon - Volume 44, Issue 10, August 2006, Pages 2027-2031
نویسندگان
N.V. Surovtsev, A.A. Kalinin, V.K. Malinovsky, Yu.N. Pal'yanov, A.S. Yunoshev,