炭/炭复合材料C/SiC/MoSi2-SiC-Si抗氧化复合涂层

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Bibliographic Details
Published in中国有色金属学报：英文版 no. 7; pp. 2118 - 2122
Main Author 张雨雷 李贺军 胡志雄 李克智 张磊磊
Format Journal Article
LanguageEnglish
Published 2013
Subjects
MoSi2
SiC
复合
氧化
涂层
炭
炭复合材料
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ISSN1003-6326

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Bibliography:Yu-lei ZHANG,He-jun LI,Zhi-xiong HU,Ke-zhi LI,Lei-lei ZHANG （C/C Composites Technology Research Center,State Key Laboratory of Thermostructural Composite Materials,Northwestern Polytechnical University,Xi’an 710072,China）
43-1239/TG
C/C composites; C/SiC; MoSi2; SiC; multilayer; coating; oxidation
C/SiC/MoSi2-SiC-Si oxidation protective multilayer coating for carbon/carbon （C/C） composites was prepared by pack cementation and slurry method. The microstructure, element distribution and phase composition of the as-received coating were analyzed by scanning electron microscopy （SEM）, energy dispersive X-ray spectroscopy （EDS） and X-ray diffraction （XRD）. The results show that the multilayer coating was composed of MoSi2, SiC and Si. It could effectively protect C/C composites against oxidation for 200 h with the mass loss of 3.25% at 1873 K in static air. The mass loss of the coated C/C composites results from the volatilization of SiO2 and the formation of cracks and bubble holes in the coating.
ISSN:1003-6326