TY - JOUR
T1 - Oxidation behaviour and mechansim of MoSi2-CrSi2-SiC-Si coating for carbon/carbon composites from room temperature to 1873 K
AU - Feng, Tao
AU - Li, He Jun
AU - Hu, Man Hong
AU - Li, Lu
N1 - Publisher Copyright:
© Owned by the authors, published by EDP Sciences, 2015.
PY - 2015/11/4
Y1 - 2015/11/4
N2 - A MoSi2-CrSi2-SiC-Si coating was prepared on the surface of carbon/carbon (C/C) composites by a two-step pack cementation method. The microstructure and oxidation behaviour of the coating were studied. These results illustrated that the coating could effectively protect C/C composites from oxidation from oxidation in air above 1600 K, due to the protection of the compound glass. The weight loss of the coated C/C specimens was only 0.4% after oxidation at 1873 K for more than 150 h. The coating lacked effective oxidation resistance for C/C composites from 800 to 1600 K, as no obvious glass layer covered the coating surface and the cracks cannot be sealed because of the high viscosity of the compound glass.
AB - A MoSi2-CrSi2-SiC-Si coating was prepared on the surface of carbon/carbon (C/C) composites by a two-step pack cementation method. The microstructure and oxidation behaviour of the coating were studied. These results illustrated that the coating could effectively protect C/C composites from oxidation from oxidation in air above 1600 K, due to the protection of the compound glass. The weight loss of the coated C/C specimens was only 0.4% after oxidation at 1873 K for more than 150 h. The coating lacked effective oxidation resistance for C/C composites from 800 to 1600 K, as no obvious glass layer covered the coating surface and the cracks cannot be sealed because of the high viscosity of the compound glass.
UR - http://www.scopus.com/inward/record.url?scp=84976487766&partnerID=8YFLogxK
U2 - 10.1051/matecconf/20153003002
DO - 10.1051/matecconf/20153003002
M3 - 会议文章
AN - SCOPUS:84976487766
SN - 2261-236X
VL - 30
JO - MATEC Web of Conferences
JF - MATEC Web of Conferences
M1 - 03002
T2 - 4th International Conference on Material Science and Engineering Technology, ICMSET 2015
Y2 - 26 October 2015 through 28 October 2015
ER -