采用化学气相沉积工艺对短切碳纤维毡体进行界面涂层改性处理后树脂浸渍裂解得到了多孔C/C预制体,再将预制体液相硅浸渗制备了C/SiC复合材料.对比了纤维有无界面涂层对C/SiC复合材料力学性能的影响,并分析了其断裂机制.结果表明,与无界面涂层改性相比,碳毡经化学气相沉积SiC涂层改性处理后制备的C/SiC复合材料的力学性能更好,强度和模量分别提高了192％和36％.界面涂层增强了纤维的抗硅化效果是C/SiC复合材料力学性能提高的主要原因,但同时复合材料也呈现出脆性断裂模式.
参考文献
| [1] | Kelly A .Composite materials after seventy years[J].Journal of Materials Science,2006(3):905-912. |
| [2] | Padmavathi N;Subrahmanyam J;Ray K et al.Carbon fiber reinforced silicon carbide mini composites-solution approach[J].Journal of Materials Processing Technology,2008,204:434. |
| [3] | Krenkel W;Berndt F .C/C-SiC composites for space applications and advanced friction systems[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2005(1/2):177-181. |
| [4] | Suresh Kumar;Anil Kumar;Rohini Devi .Capillary infiltration studies of liquids into 3D-stitched C-C preforms Part B: Kinetics of silicon infiltration[J].Journal of the European Ceramic Society,2009(12):2651-2657. |
| [5] | Amirthan G;Udayakumar A;Bhanu Prasad V V et al.Properties of Si/SiC ceramic composite subjected to chemical vapour infiltration[J].Ceramics International,2009,35:2601. |
| [6] | Zhu Yunzhou;Huang Zhengren;Dong Shaoming et al.The fabrication of 2D Cf/SiC composite by a modified PIP process using active Al powders as active filler[J].Materials Characterization,2008,59:975. |
| [7] | Schulte-Fischedick J.;Zern A.;Mayer J.;Ruhle M.;Friess M.;Krenkel W. Kochendorfer R. .The morphology of silicon carbide in C/C-SiC composites[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(1/2):146-152. |
| [8] | 闻立时.固体材料界面研究的物理基础[M].北京:科学出版社,2011 |
| [9] | Frank H Gern et al.Liquid silicon infiltration:Escription of infiltration dynamics and silicon carbide formation[J].Composites Part A:Applied Science and Manufacturing,1997,28:325. |
| [10] | 周清,董绍明,丁玉生,张翔宇,王震,黄政仁,江东亮.界面涂层对气相渗硅Cf/SiC复合材料力学性能的影响[J].无机材料学报,2007(06):1142-1146. |
| [11] | 武七德,鄢永高,赵修建,郭兵健,李美娟,刘小磐.纯碳坯渗硅制备反应烧结碳化硅的研究[J].武汉理工大学学报,2003(06):1-3. |
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