| 二维C/(BC_x–SiC)_n复合材料的高温层间剪切性能(英文) |
| |
| 引用本文： | 吴琦,张程煜,乔生儒,何续斌,李玫,韩栋.二维C/(BC_x–SiC)_n复合材料的高温层间剪切性能(英文)[J].硅酸盐学报,2009(5). |
| |
| 作者姓名： | 吴琦 张程煜 乔生儒 何续斌 李玫 韩栋 |
| |
| 作者单位： | 西北工业大学超高温结构复合材料国防科技重点实验室; |
| |
| 基金项目： | 国家自然科学基金(50772089);;高等学校学科创新引智计划(B08040)资助项目 |
| |
| 摘 要： | 采用双槽口剪切法(double-notched shear,DNS)研究了二维(two dimensional,2D)碳纤维增强碳化硼-碳化硅2DC/(BCx-SiC)n]复合材料的高温层间剪切性能,用扫描电子显微镜观察断口形貌。结果表明:在25～1200℃范围内,温度对2DC/(BCx-SiC)n复合材料的层间剪切强度有明显影响,在900℃时材料的层间剪切强度最高可达40.0MPa,分别比25℃和1200℃的高约13%和8%,略高于700℃的。此外,C/(BCx-SiC)n的层间剪切强度始终高于C/SiC的强度,且2种材料的层间剪切强度随温度变化规律相似。断口分析表明:层间剪切失效发生在基体内部或基体/纤维界面上,而纤维并没有受到损伤。
|
| 关 键 词： | 碳纤维增强碳化硼-碳化硅复合材料 多层基体 双槽口剪切法 层间剪切强度 |
HIGH TEMPERATURE INTERLAMINAR SHEAR STRENGTH OF TWO DIMENSIONAL CARBON FIBRE REINFORCED(BC_x-SiC)_n COMPOSITE |
| |
| WU Qi,ZHANG Chengyu,QIAO Shengru,HE Xubin,LI Mei,HAN Dong.HIGH TEMPERATURE INTERLAMINAR SHEAR STRENGTH OF TWO DIMENSIONAL CARBON FIBRE REINFORCED(BC_x-SiC)_n COMPOSITE[J].Journal of The Chinese Ceramic Society,2009(5). |
| |
| Authors: | WU Qi ZHANG Chengyu QIAO Shengru HE Xubin LI Mei HAN Dong |
| |
| Affiliation: | National Key Laboratory of Thermostructure Composite Materials;Northwestern Polytechnical University;Xi'an 710072;China |
| |
| Abstract: | The interlaminar shear strength(ILSS) of two-dimensional(2D) carbon fiber-reinforced boron carbide-silicon carbide composite(C/(BCx-SiC)n) was investigated by means of a double-notched shear method at room temperature in air and high temperature in vacuum.The fracture planes of the samples were observed using a scanning electron microscope.The results indicate that the ILSS varies at elevated temperature.Both materials have a similar relationship between ILSS and temperature.The maximum ILSS of 2D C/(BCx-Si... |
| |
| Keywords: | carbon fiber reinforced boron carbide-silicon carbide composite multilayered matrix double-notched shear interlaminar shear strength |
| 本文献已被 CNKI 等数据库收录！ |
