高压物理学报2001，Vol.15Issue(1)：1-4,4.
高压下碳纳米管的X射线衍射研究
CARBON NANOTUBE PROPERTIES
UNDER HIGH PRESSURE
陈良辰 1王莉君 1唐东升 1解思深 1靳常青1
作者信息
摘要
Abstract
The structure and physical properties of carbon nanotubes under high pressure up to 50.7GPa were investigated using in situ high pressure energy dispersive X-ray diffraction with synchrotron radiation.At atmospheric pressure,the structure of carbon nanotubes is similar to the hexagonal close-packed lattice of graphite with the interplanar spacing of diffraction line (002)d002＝0．3404 nm and that of line (100)d100＝0．2116 nm.According to the high pressure X-ray diffraction results,diffraction line (002) is broadened and weakened above 8GPa,and carbon nanotubes became partly amorphous.When pressure of 10GPa and 20GPa was down to zero,the diffraction line (002) was partly recovered.But at the maximum pressure of 50.7GPa,they entirely became amorphous and this amorphous transition is irreversible.The equation of state of Birch-Murnaghan was used to obtain the bulk modulus K0＝（54．3±3．2）GPa（at K′0＝4．0）．关键词
同步辐射/高压X射线衍射/碳纳米管
分类
数理科学引用本文复制引用
陈良辰,王莉君,唐东升,解思深,靳常青..高压下碳纳米管的X射线衍射研究
[J].高压物理学报,2001,15(1):1-4,4.
