TY - JOUR
T1 - Microstructure of C/C composites with different matrix carbon
AU - Liu, Hao
AU - Li, Ke Zhi
N1 - Publisher Copyright:
© 2016, Journal of Materials Engineering. All right reserved.
PY - 2016/7/20
Y1 - 2016/7/20
N2 - 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).
AB - 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).
KW - C/C composites
KW - Matrix carbon
KW - Microstructure
UR - http://www.scopus.com/inward/record.url?scp=84981224892&partnerID=8YFLogxK
U2 - 10.11868/j.issn.1001-4381.2016.07.002
DO - 10.11868/j.issn.1001-4381.2016.07.002
M3 - 文章
AN - SCOPUS:84981224892
SN - 1001-4381
VL - 44
SP - 7
EP - 12
JO - Cailiao Gongcheng/Journal of Materials Engineering
JF - Cailiao Gongcheng/Journal of Materials Engineering
IS - 7
ER -