| CVI结合浆料浸渍法制备2D C/SiC复合材料的微观结构和力学性能 |
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| 引用本文： | 童长青,成来飞,刘永胜,张立同.CVI结合浆料浸渍法制备2D C/SiC复合材料的微观结构和力学性能[J].材料科学与工程学报,2010,28(3). |
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| 作者姓名： | 童长青 成来飞 刘永胜 张立同 |
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| 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,陕西,西安,710072;龙岩学院,化学与材料学院,福建,龙岩,364000;西北工业大学,超高温结构复合材料国防科技重点实验室,陕西,西安,710072 |
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| 基金项目： | Supported by Natural Science Foundation of China(90405015); National Young Elitists Foundation(50245208) |
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| 摘 要： | 采用CVI结合浆料浸渍工艺制备2D C/SiC复合材料。研究了SiC微粉对复合材料微结构和力学性能的影响。结果表明,当碳纤维预制沉积SiC80h后,微粉主要渗入到纤维束间。复合材料的力学强度随着渗微粉前CVI时间的增加及渗入浆料浓度的降低而增加。微粉的渗入大大降低了材料的层间剪切强度,而对材料的拉伸强度影响较小。
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| 关 键 词： | 2D C/SiC 微结构 力学性能 CVI 浆料浸渍 |
Microstructure and Mechanical Properties of 2D C/SiC Composites Fabricated by CVI Combining with Slurry Infiltration |
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| TONG Chang-qing ,CHENG Lai-fei,LIU Yong-sheng,ZHANG Li-tong.Microstructure and Mechanical Properties of 2D C/SiC Composites Fabricated by CVI Combining with Slurry Infiltration[J].Journal of Materials Science and Engineering,2010,28(3). |
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| Authors: | TONG Chang-qing CHENG Lai-fei LIU Yong-sheng ZHANG Li-tong |
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| Affiliation: | TONG Chang-qing 1,2,CHENG Lai-fei1,LIU Yong-sheng1,ZHANG Li-tong1(1.National Key Laboratory of Thermostructure Composite Materials,Northwestern Polytechnical University,Xi'an 710072,China,2.College of Chemistry & Materials Science,Longyan University,Longyan 364000,China) |
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| Abstract: | 2D C/SiC composites were fabricated by chemical vapor infiltration(CVI)combining with slurry infiltration(SI)process.Effects of content of SI-SiC particles on the microstructure and mechanical performances were investigated.The particles can be infiltrated into inter-bundle pores of fiber preform after CVI SiC for 80h.The density and mechanical strength of the as-fabricated composites increase not only with increasing the CVI SiC time before SI process,but also with decreasing content of the particles.The S... |
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| Keywords: | 2D C/SiC microstructure mechanical properties CVI slurry infiltration |
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