| CVD-SiC纤维的拉曼光谱研究 |
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| 作者姓名： | Liu B Yang YQ Luo X Huang B |
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| 作者单位： | 西北工业大学凝固技术国家重点实验室,陕西西安,710072 |
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| 基金项目： | 国家自然科学基金项目(50871086,51071122); 航空基金项目(2009ZF53062); 中国博士后科学基金项目(20090451393); 凝固技术国家重点实验室自选课题基金项目(KP200906)资助 |
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| 摘 要： | 采用激光拉曼光谱对单根CVD-SiC纤维进行了研究,并与SiCf/Ti-6A1-4V复合材料中SiC纤维的拉曼光谱进行对比分析.发现SiC纤维的第一沉积层的TO峰峰形尖锐,表明SiC晶粒较大,第二沉积层的晶粒较小,在二个沉积层中分别检测到碳和硅的拉曼峰.在复合材料中,SiC纤维的TO峰向高波数偏移,表明复合材料在制备过...
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| 关 键 词： | SiC纤维 钛基复合材料 拉曼光谱 热残余应力 |
Application of Raman spectroscopy to investigation of CVD-SIC fiber |
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| Liu B,Yang YQ,Luo X,Huang B.Application of Raman spectroscopy to investigation of CVD-SIC fiber[J].Spectroscopy and Spectral Analysis,2011,31(11):2956-2960. |
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| Authors: | Liu Bin Yang Yan-Qing Luo Xian Huang Bin |
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| Institution: | LIU Bin,YANG Yan-qing,LUO Xian,HUANG Bin State Key Lab of Solidification Processing,Northwestern Polytechnical University,Xi'an 710072,China |
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| Abstract: | The CVD-SiC fiber was studied by using laser Raman spectra.It was found that the sharp TO peak exists in the first SiC deposit layer,indicating the larger SiC grains.But the second SiC deposit layer is with small grains.Raman peak of carbon and silicon was detected respectively in the first and second layer.Compared with that of the single SiC fiber,the TO peaks move to the high wave number for the SiC fiber in SiCf/Ti-6Al-4V composite.It indicates that the compressive thermal residual stress is present in ... |
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| Keywords: | SiC fiber Titanium matrix composite Raman spectra Thermal residual stress |
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