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

被引：0
|
作者：
V. P. Filonenko
I. P. Zibrov
M. V. Trenikhin
P. E. Pavlyuchenko
A. B. Arbuzov
V. A. Drozdov
V. A. Likholobov
机构：
[1] Russian Academy of Sciences,Vereshchagin Institute of High
[2] Russian Academy of Sciences,Pressure Physics
[3] Russian Academy of Sciences,Institute of Hydrocarbon Processing Problems, Siberian Branch
来源：
Inorganic Materials | 2017年 / 53卷
关键词：
turbostratic carbon spheres; high pressures; graphite; diamond;
D O I：
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中图分类号：
学科分类号：
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 1300°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.
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页码：462 / 468
页数：6
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