The structures of C60-phases, formed by thermobaric treatment:: HREM-studies

被引：19

作者：

Blank, VD ^{[1
]}

Kulnitskiy, BA

Dubitsky, GA

Alexandrou, I

机构：

[1] TISNCM, Troitsk, Moscow Region, Russia

[2] Univ Liverpool, Dept Elect Engn & Elect, Liverpool L69 3BX, Merseyside, England

来源：

FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES | 2005年 / 13卷

关键词：

fullerene; high pressure; electron microscopy;

D O I：

10.1081/FST-200039245

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The present study was undertaken for determination of microstructures of C-60 phases, formed at different stages of high pressure and high temperature (HPHT) treatment by TEM methods. A sequence of fcc-lattices was found after HPHT treatment at moderate temperature and pressure conditions. Increasing the pressure and temperature values further results in the formation of distorted fcc-phases, explained by the formation of chains of bonded C-60-molecules. Curved carbon structures-ellipsoids and onions with compressed inner layers were observed in C-60-specimens after next stage of thermobaric treatment. Diffraction patterns of the structure, formed after higher parameters, show diffuse arc reflection, separated by a 70 degrees angle. We can conclude, that the materials's hardness increases with increasing temperature and pressure. The hardest material has a structure consisting of onions and 70 degrees disoriented fringes.

引用

页码：167 / 177

页数：11

共 24 条

[11] New structure after thermobaric treatment of solid C-60 [J].