不同纤维预制体结构对SiC_f /PyC/SiBCN复合材料力学性能的影响
Effect of Fabric Preform Structure on Mechanical Properties of SiC_f /PyC/SiBCN Composites
查看参考文献26篇
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文摘
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使用不同织造方式(二维机织,法向增强2. 5维机织和三维五向编织)制备了3种SiC纤维预制体,采用树脂转移模塑(RTM)和聚合物浸渍裂解(PIP)工艺制备了SiC_f/PyC/SiBCN复合材料。观察复合材料的显微组织,测试弯曲强度、拉伸强度、压缩强度等力学性能,探究不同预制体结构对复合材料力学性能的影响行为。结果表明:同一预制体结构在不同方向的纤维分布不同导致材料力学性能的各向异性;不同预制体结构对材料力学性能有着显著的影响。 |
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其他语种文摘
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Three continuous silicon carbide fiber reinforced SiBCN composites (SiC_f /PyC/SiBCN) distinguished by different weaving methods of fibers (including two dimensional woven,2. 5 dimensional woven with the fiber tow through the thickness and three dimensional five directional braiding) were fabricated by resin transfer molding (RTM),polymer impregnation and pyrolysis (PIP) technology. In order to study the impact of waving methods,the microstructures of fabricated composites were observed and the mechanical properties such as tensile,compression strength and bending strength of the composites were tested. The results show that different distributions of fibers on different directions lead to anisotropy of mechanical properties for each composite,and fabric preform structure has a significant influence on the mechanical properties of the composites. |
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来源
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航空材料学报
,2017,37(4):45-51 【核心库】
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DOI
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10.11868/j.issn.1005-5053.2016.000225
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关键词
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织造方式
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碳化硅纤维
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SiBCN
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复合材料
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地址
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北京航空材料研究院先进高温结构材料重点实验室, 北京航空材料研究院先进高温结构材料重点实验室, 北京, 100095
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1005-5053 |
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学科
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航空 |
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基金
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中航工业技术创新基金
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文献收藏号
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CSCD:6124929
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