Microstructure of C/C composites with different matrix carbon

被引：0
|
作者：
Liu H. [1 ]
Li K.-Z. [2 ]
机构：
[1] Research Center of Energy and Chemical Engineering, Yulin University, Yulin, 719000, Shaanxi
[2] School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an
来源：
Liu, Hao (liuh0929@163.com) | 1600年 / Beijing Institute of Aeronautical Materials (BIAM)卷 / 44期
关键词：
C/C composites; Matrix carbon; Microstructure;
D O I：
10.11868/j.issn.1001-4381.2016.07.002
中图分类号：
学科分类号：
摘要：
The microstructure of carbon/carbon(C/C) composites with different matrix carbon was studied by polarized light microscopy (PLM), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and XRD techniques respectively. PLM results indicate that the different matrix carbon exhibits different optical reactivity, and the average optical reactivity is gradually enhanced from normal pitch carbon, smooth laminar of pyrocarbon, rough laminar of pyrocarbon to mesophase pitch carbon; SEM results show that the normal pitch carbon is mainly of grapy structure, the pyrocarbon exhibits like-crinkle lamellar structure, while the mesophase pitch carbon exhibits lamellar banded structure with different shapes. Under HRTEM, the lattice fringes of the mesophase pitch carbon are arranged regularly, is a long range ordered crystal structure, and the preferred orientation is high. The degree of the graphite and the interlayer spacing of the material B (mesophase pitch-based C/C composites) are better than that of the material D (pyrocarbon-based C/C composites). © 2016, Journal of Materials Engineering. All right reserved.
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页码：7 / 12
页数：5
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