| 高性能连续碳纤维增强碳化硅复合材料的制备及其高温力学性能的研究 |
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| 引用本文： | 焦健,史一宁,邱海鹏,孙明,李秀倩,罗京华.高性能连续碳纤维增强碳化硅复合材料的制备及其高温力学性能的研究[J].功能材料,2011,42(Z3). |
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| 作者姓名： | 焦健 史一宁 邱海鹏 孙明 李秀倩 罗京华 |
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| 作者单位： | 1. 北京航空制造工程研究所,北京,100024
2. 空军驻北京地区军事代表室,北京,100024 |
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| 摘 要： | 连续碳纤维增强碳化硅(Cf/SiC)复合材料以其耐高温、高强度、低密度等特性已成为新一代航空发动机高温部件的首选材料。采用聚合物浸渍裂解法(PIP)成功制备出适用于航空发动机高温部件的Cf/SiC复合材料,其密度为1.83g/cm3。在发动机典型工作温度1200℃条件下,通过本工艺制备Cf/SiC材料的弯曲强度高达712MPa,略高于材料的室温弯曲强度(641MPa)。这一现象可能由碳纤维在冷却过程中产生的残余应力引起。此外,在温度为1200℃、加载压力120MPa的条件下,材料的稳态高温蠕变速率为2.08×10-3%/h,基体开裂和界面滑动可能是材料宏观变形的主要原因。
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| 关 键 词： | 聚合物浸渍裂解法 Cf/SiC复合材料 高温 力学性能 |
The preparation and the high-temperature properties of 3D C_f/SiC composite material by PIP process |
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| JIAO Jian,SHI Yi-ning,QIU Hai-peng,SUN Ming,LI Xiu-qing,LUO Jing-hua.The preparation and the high-temperature properties of 3D C_f/SiC composite material by PIP process[J].Journal of Functional Materials,2011,42(Z3). |
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| Authors: | JIAO Jian SHI Yi-ning QIU Hai-peng SUN Ming LI Xiu-qing LUO Jing-hua |
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| Affiliation: | JIAO Jian1,SHI Yi-ning2,QIU Hai-peng1,SUN Ming1,LI Xiu-qing1,LUO Jing-hua1(1.Beijing Aeronautical Manufacturing Technology Research Institute,Beijing 100024,China,2.Military Deputy of Aircraft of PLA in Beijing,China) |
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| Abstract: | Cf/SiC composite material is one of the most promising candidates to substitute superalloy,which has been used in current aeronautic engine components working under high-temperature for decades.Towards the requirements of these high temperature components,we successfully prepared 3D Cf/SiC composite material via PIP process with a low density of 1.83g/cm3.Subsequently,mechanical tests of this material including flexural properties and tensile creep were carried out at a typical engine working temperature of... |
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| Keywords: | precursor infiltration pyrolsis Cf/SiC composite high temperature flexural property |
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