%0 Journal Article
%T Preparation and Performance of Pre-coated Carbon Layer for Carbon/Carbon Composites
%A ZHANG Yu-Lei
%A LI He-Jun
%A FU Qian-Gang
%A LI Ke-Zhi
%A OUYANG Hai-Bo
%J 无机材料学报
%D 2009
%I Science Press
%R 10.3724/sp.j.1077.2009.00125
%X Pre-coated carbon layers on the surface of carbon/carbon composites were prepared firstly by slurry and high-temperature treatment for preparing the anti-oxidation coating with SiC concentration gradient. The micrographs and microstructures of the pre-coated carbon layer were characterized by SEM, Raman and XRD. The effects of different graphite content and carbonization temperature on the microstructure of pre-coated carbon layer were investigated. The bonding strength between the carbon layer and the C/C composites was also measured. The results show that the as-prepared carbon layer is dense and the bend strength reaches a 10.5MPa. The structures of the pre-coated carbon layer are influenced by the graphite content and carbonization temperature, and the pre-coated carbon layers with different structures are obtained.
%K carbon/carbon composites
%K pre-coated carbon layer
%K oxidation protective coating
%U http://www.jim.org.cn/fileup/PDF/20090127.pdf