Structural and morphological transformations of carbon nanospheres during high-temperature, high-pressure processing

被引:4
|
作者
Filonenko, V. P. [1 ]
Zibrov, I. P. [1 ]
Trenikhin, M. V. [2 ,3 ]
Pavlyuchenko, P. E. [2 ,3 ]
Arbuzov, A. B. [2 ,3 ]
Drozdov, V. A. [2 ,3 ]
Likholobov, V. A. [2 ,3 ]
机构
[1] Russian Acad Sci, Vereshchagin Inst High Pressure Phys, Kaluzhskoe Sh 14, Moscow 108840, Russia
[2] Russian Acad Sci, Inst Hydrocarbon Proc Problems, Siberian Branch, Neftezavodskaya Ul 54, Omsk 644040, Russia
[3] Russian Acad Sci, Siberian Branch, Omsk Sci Ctr, Pr Karla Marksa 15, Omsk 644040, Russia
基金
俄罗斯基础研究基金会;
关键词
turbostratic carbon spheres; high pressures; graphite; diamond; GRAPHENE;
D O I
10.1134/S0020168517050065
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper presents analysis of structural changes in powders consisting of turbostratic carbon spheres with an average particle diameter of 250 and 25 nm after high-temperature, high-pressure processing at a pressure of 8 GPa. It has been shown that marked ordering of graphene sheets is observed at 1300A degrees C and actively proceeds at higher temperatures. The major morphological species in the samples after processing is slabs of graphene sheets, and three-dimensional structural perfection is higher at the smaller particle size. Using high-resolution electron microscopy, samples of this powder were shown to contain diamond nanocrystallites.
引用
收藏
页码:462 / 468
页数:7
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