Study of the Carbonization and Graphitization of Coal Tar Pitch Modified with SiC Nanoparticles

被引：10

作者：

Gubernat, Maciej ^{[1
]}

Lis, Tomasz ^{[1
]}

Tomala, Janusz ^{[2
]}

Kawala, Jakub ^{[2
]}

Fraczek-Szczypta, Aneta ^{[1
]}

Blazewicz, Stanislaw ^{[1
]}

机构：

[1] AGH Univ Sci & Technol, Fac Mat Sci & Ceram, Al Mickiewicza 30, PL-30059 Krakow, Poland

[2] SGL Carbon Polska SA, Ul Piastowska 29, PL-47400 Raciborz, Poland

来源：

JOURNAL OF NANOMATERIALS | 2017年 / 2017卷

关键词：

OXIDATION BEHAVIOR; SILICON-CARBIDE; COMPOSITES; MICROSTRUCTURE; GRAPHITE; WHISKERS;

D O I：

10.1155/2017/6578928

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Silicon carbide nanoparticles (nSiC) have been used to modify coal tar pitch (CTP) as a carbon binder. The influence of ceramic nanoparticles on the structure and microstructure was studied. The structure of CTP-based carbon residue with various nSiC contents was analyzed by using SEM with EDAX, Raman spectroscopy, and X-ray diffraction. The effect of ceramic nanofiller on the crystallite sizes (L-c,L-a) and the c- ais spacing (d(002)) in carbonized samples after heating from 1000 to 2800 degrees C was analyzed. Ceramic nanofillers inhibit structural changes in carbonized samples heated to 1000 degrees C. After heating CTP with nSiC above 2000 degrees C, the carbon samples contained two carbon components differing in structural ordering. Ceramic nanoparticles increase carbon crystallite growth, while their impact on the c-axis spacing is low.

引用

页数：6

共 24 条

[1]

[Anonymous], 2014, MAT SCI ENG CARBON F, DOI DOI 10.1016/B978-0-12-800858-4.00003-6

[2] General equation for the determination of the crystallite size La of nanographite by Raman spectroscopy [J].