| C/C复合材料的光谱发射率研究 |
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| 引用本文： | 朱波,曹伟伟,井敏,董兴广,王成国.C/C复合材料的光谱发射率研究[J].光谱学与光谱分析,2009,29(11):2909-2913. |
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| 作者姓名： | 朱波 曹伟伟 井敏 董兴广 王成国 |
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| 作者单位： | 1. 山东大学材料科学与工程学院高分子材料研究所碳纤维中心,材料液态结构及其遗传性教育部重点实验室,山东,济南,250061
2. 山东建筑大学材料科学与工程学院,山东,济南,250101 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 采用模压成型法制备了不同类型的C/C复合材料,测试了其法向光谱发射率的变化.结果表明,短切碳纤维增强的C/C复合材料,其法向光谱发射率在整个2 500～13 000 nm的测试波段内普遍要高于碳布增强复合材料样品.短切碳纤维结构的相对松散,单位体积内物质的粒子数相对较少,这增加了电磁波的穿透深度,从而使得样品的法向光谱发射率较高,热辐射特性较好.纤维预制体和C/C复合材料样品的法向光谱发射率测试对比可知,两种不同碳材料的微结构差异使得树脂碳的法向光谱发射率优于纤维碳.利用Raman光谱对不同碳物质进行物相分析表明,树脂碳以sp3和sp2杂化态碳原子的混合结构使其内部产生的局域振动模式较多,这也是样品法向光谱发射率较高,热辐射特性较好的原因.
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| 关 键 词： | C/C复合材料 光谱发射率 树脂碳 |
| 收稿时间： | 2008/11/8 |
Study on Spectral Emissivity of C/C Composites |
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| ZHU Bo,CAO Wei-wei,JING Min,DONG Xing-guang,WANG Cheng-guo. Carbon Fiber Center.Study on Spectral Emissivity of C/C Composites[J].Spectroscopy and Spectral Analysis,2009,29(11):2909-2913. |
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| Authors: | ZHU Bo CAO Wei-wei JING Min DONG Xing-guang WANG Cheng-guo Carbon Fiber Center |
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| Institution: | ZHU Bo1,CAO Wei-wei1,JING Min2,DONG Xing-guang1,WANG Cheng-guo11. Carbon Fiber Center,Institute of Polymer Materials,School of Materials Science and Engineering,Key Laboratory of Liquid Structure and Heredity of Materials,Ministry of Education,Shandong University,Ji'nan 250061,China2. College of Materials Science and Engineering,Shandong Jianzhu University,Ji'nan 250101,China |
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| Abstract: | Different types of C/C composites were prepared by conventional molding,and the changes in normal spectral emissivity of samples were tested. The testing results show that spectral emissivity of C/C composite reinforced by short cut carbon fibers is generally higher than the sample reinforced by carbon cloth in the entire 2500-13000nm wavelength region. The structure of short cut carbon fibers is relatively loose and the number of material particles is less than other samples in unit volume,which increases ... |
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| Keywords: | C/C composite Spectral emissivity Resin carbon |
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