采用两段式包埋法和封闭处理的复合新工艺制得抗氧化性优良的MoSi2/SiC复合梯度C/C复合材料高温抗氧化涂层.涂层由内至外结构为:SiC过渡层→SiC致密层→MoSi2/SiC双相层→以MoSi2为主的外层.对未封闭处理的涂层,制备过程中高温保温时间长的氧化失重少,1200℃、1300℃空气中氧化失重比1400℃、1500℃氧化失重大.用正硅酸四乙酯对涂层表面进行封闭处理,凝胶形成的SiO2可充填涂层表面裂纹并覆盖在涂层表面.在1500℃空气中氧化一定时间后,未封闭处理的涂层试样表现为氧化失重;封闭处理后的试样为氧化增重,氧化52 h仍然只有1.28%的增重,封闭处理使涂层的抗氧化性能明显改善.
参考文献
| [1] | 程基伟,罗瑞盈,王天民.炭/炭复合材料高温抗氧化研究的现状[J].炭素技术,2001(5):27-33.Cheng Jiwei, Lou Ruiying, Wang Tianming. Review of the study on the high temperature oxidation resistance of C/C composites [J]. Carbon Technology, 2001(5): 27-33. |
| [2] | Joshi A, Lee J S. Coating with particulate dispersions for high temperature oxidation protection of carbon and C/C composites [J]. Composites Part A, 1997, 28A: 181-189. |
| [3] | Parashar V K, Raman V, Bahl O P. Oxidation resistant material for carbon/carbon composites by the sol-gel process[J]. Journal of Materials Science Letters, 1997, 16: 479-481. |
| [4] | Sandrine Labruquere, Xavier Bourrnt, Pailer R, Roger Naslain. Structure and oxidation of C/C composites: Role of the interface [J]. Carbon, 2001, 7: 971-984. |
| [5] | Takaga Aoki, Hiroshi Hatta, Taka Hitomi, Ichiro Shiota,et al. SiC/C multi-layered coating contributing to the antioxidation of C/C compositions and the suppression of through thickness cracks in the layer [ J]. Carbon, 2001 (10):1477-1483. |
| [6] | Cairo C A A, Graca M L A, Silva C R M, Bressiani J C.Functionally gradient ceramic coating for carbon-carbon anti oxidation protection [J]. Journal of European Ceramic Society, 2001, 21: 325-329. |
| [7] | Manocha L M, Manocha S, Keten B, et al. Oxidation behavior of carbon/carbon composites impregnated with silica and silicon oxycarbide [J]. Carbon, 2000, 38:1481-1491. |
| [8] | 易茂中,葛毅成,彭春兰.预浸涂对航空刹车副用C/C复合材料抗氧化性能的影响[J].中国有色金属学报,2002(2):260-263.Yi Maozhong, Ge Yicheng, Peng Chunlan, et al. Effect of pre-impregnation on anti-oxidation of carbon/carbon composites for airplane brake disc [J]. The Chinese Journal of Nonferrous Metals, 2002(2): 260-263. |
| [9] | 易茂中,葛毅成,蒋建纯.飞机炭刹车盘抗氧化复合涂层及其制备方法[P].中国专利,02119634.6.Yi Maozhong, Ge Yicheng, Jiang Jianchun. Anti-oxidation complex coating and preparation process for airplane carbon brake [P]. Chinese Patent, 02119634. 6. |
| [10] | 曾燮榕,李贺军,张建国,等.碳/碳复合材料防护涂层抗氧化行为的研究[J].复合材料学报,2000,17(2):42-45.ZengXierong, Li Hejun, Zhang Jianguo, et al. Effect of microstructure and component on oxidation resistance of MoSi2-SiC multilayer ceramic coating [J]. Acta Materiae Compositae Sinica, 2000, 17(2): 42-45. |
| [11] | 曾燮榕,李贺军,李龙,等.碳/碳复合材料MoSi2/SiC涂层在动态氧化环境下的性能研究[J].复合材料学报,2002,19(6):43-46.Zeng Xierong, Li Hejun, Li Long, et al. Dynamic antioxidation behaviour of MoSi2/SiC coating system for carbon/carbon composites [J]. Acta Materiae Compositae Sinica,2002, 19(6): 43-46. |
| [12] | 刘荣军,周新贵,张长瑞,等.包渗法制备Cf/SiC陶瓷基复合材料MoSi2-SiC-Si防氧化涂层[J].宇航材料工艺,2000(3):45-48.Liu Rongjun, Zhou Xingui, Zhang Changrui, et al. The oxidation resistant MoSi2-SiC-Si coating for Cf/SiC ceramic matrix composites prepared by cementation [J]. Aerospace Materials & Technology, 2000(3): 45-48. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%