Abstract
To protect carbon/carbon (C/C) composite against oxidation, a SiC/Si/MoSi2anti-oxidation coating was preparated on C/C composite by embedding with the powder mixture of Si, C and MoSi2at 1600°C in argon atmosphere. In order to investigate the effection of SiC whisker on formation and oxidation resistance of coating, SiC whisker was introduced to coatings by pyrolysis of hydrogen silicone oil (H-PSO) at 1600°C before embedding treatment. Oxidation experiment was carried out in the static air at 1400°C for 2h, and thermal cycling between 1400°C and room temperature for 5 times. Morphology and phase structure of the coating were analyzed by XRD and SEM with EDS. The anti-oxidative mechanism of coating was investigated by comparing the diversity of morphology and phase structure before and after oxidation. The research indicates that the introduction of SiC whiskers improves the performance of the coating effectively. It can effectively decrease the cracking of the coating in the oxidation process, and avoid the excessive penetration of silicon to protect the matrix from being excessively corrosion.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
