@Article{fdmp.2023.029028,
AUTHOR = {Wei Shi, Zhengyi Li, Xiaobing Xu, Yingshui Yu, Xiaofei Ding, Heng Ju},
TITLE = {Protective Graphite Coating for Two-Dimensional Carbon/Carbon Composites},
JOURNAL = {Fluid Dynamics \& Materials Processing},
VOLUME = {20},
YEAR = {2024},
NUMBER = {1},
PAGES = {97--108},
URL = {http://www.techscience.com/fdmp/v20n1/54542},
ISSN = {1555-2578},
ABSTRACT = {Two-dimensional carbon/carbon (2D C/C) composites are a special class of carbon/carbon composites, generally
obtained by combining resin-impregnated carbon fiber clothes, which are then cured and carbonized. This study
deals with the preparation of a protective coating for these materials. This coating, based on graphite, was prepared by the slurry method. The effect of graphite and phenolic resin powders with different weight ratios was
examined. The results have shown that the coating slurry can fill the pores and cracks of the composite surface,
thereby densifying the surface layer of the material. With the increase of the graphite powder/phenolic resin
weight ratio, the coating density is enhanced while the coating surface flatness decreases; moreover, the protective
ability of coating against erosion first increases (from 1:3 to 2:2) and then decreases (from 2:2 to 3:1). When the
weight ratio is about 1:1, the coating for 2D C/C composites exhibits the best erosion resistance, which greatly
aids these materials during gas quenching. In this case, the erosion rate is decreased by approximately 41.5%
at the impact angle of 30° and 52.3% at normal impact, respectively. This can be attributed to the ability of
the coating slurry to infiltrate into the substrate, thereby bonding the fibers together and increasing the compactness of the 2D C/C composites.},
DOI = {10.32604/fdmp.2023.029028}
}