由于涂层与C/C复合材料之间热膨胀系数不匹配,当冷却至室温时在高温下制备的抗氧化涂层会产生裂纹,为分析涂层裂纹的组态,通过在碳毡和真空穿刺两种C/C复合材料基体上制备单层、双层SiC涂层来研究涂层裂纹的形貌及分布.利用金相显微镜和扫描电镜观察两种涂层裂纹的形貌和分布,解释了裂纹与涂层所受热应力及基体原有缺陷的关系,利用XRD分析了单层和双层涂层的成分,说明了不同类型SiC结构与涂层裂纹之间的联系.结果表明涂层裂纹分布及裂纹宽度与基体纤维方向有关；随着涂层厚度增大,微裂纹数量减少；基体原有缺陷会导致涂层产生穿透性裂纹.
参考文献
| [1] | 廖勋鸿,廖名华,王鑫秀,刘桂香.C/C复合材料在火箭发动机和飞机上的应用[J].炭素,2002(03):11-13. |
| [2] | Windhors T;Blount G .Carbon-carbon composites:a summary of recent developments and applications[J].Materials & Design,1997,18(01):11. |
| [3] | 李贺军,曾燮榕,朱小旗.炭/炭复合材料抗氧化研究[J].炭素,1999(03):2-7. |
| [4] | Buckley J D;Edie D D.Carbon-Carbon Materials and Composites[M].Park,NJ:Noyes Publications,1993:121. |
| [5] | Federico Smeacetto;Monica Ferraris;Milena Salvo .Multilayer coating with self-sealing properties for carbon-carbon composites[J].Carbon: An International Journal Sponsored by the American Carbon Society,2003(11):2105-2111. |
| [6] | Otsuka A;Sakamoto K;Masumoto H .A multi-layer CVD-SiC coating for oxidation protection of carbon/carbon composite[J].Material Scientific Research International,1999,5(03):163. |
| [7] | 董茜,杨志民.SiC的添加对AlN/Mo/SiC复合陶瓷的制备和性能影响探究[J].稀有金属,2011(06):904-908. |
| [8] | Kazuyuki Oguri;Takahiro Sekigawa;Jiro Kochiyama .Catalycity Measurement of Oxidation-resistant CVD-SiC Coating on C/C Composite for Space Vehicle[J].Materials transactions,2001(5):856-861. |
| [9] | 杨海峰,王惠,冉新权.C/C复合材料的高温抗氧化研究进展[J].炭素技术,2000(06):22-28. |
| [10] | Hiroshi Hatta;Takuya Aoki;Yasuo Kogo;Toshio Yarii .High-temperature oxidation behavior of SiC-coated carbon fiber-reinforced carbon matrix composites[J].Composites, Part A. Applied science and manufacturing,1999(4):515-520. |
| [11] | 赵建国,李克智,李贺军,孙国栋,王闯.炭/炭复合材料热膨胀性能的研究[J].材料热处理学报,2006(06):1-4. |
| [12] | 武创,郗雨林,王其红,张新杰.陶瓷涂层断裂韧性的表征[J].热加工工艺,2010(04):109-112. |
| [13] | K. Aderogba .An Invariant Analysis of the Bending of Three Edge-Bonded Dissimilar Plates[J].Journal of Applied Mechanics,2009(6):061009-1-061009-7. |
| [14] | 史小红,李贺军,付前刚,卢锦花,李克智.不同氧化物对C/C复合材料SiC涂层性能的影响[J].新型炭材料,2009(01):45-49. |
| [15] | Huang J F;Zeng X R;Li H J;Xiong X B Fu Y W .Influence of the preparation temperature on the phase,microstructure and anti-oxidation property of a SiC coating for carbon/carbon composites[J].Carbon,2004,42(08):151. |
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%