| Preparation and properties of Cu matrix composite reinforced by carbon nanotubes |
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| 作者姓名： | 陈小华 李文华 陈传盛 许龙山 杨植 胡静 |
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| 作者单位： | [1]CollegeofMaterialsScienceandEngineering,HunanUniversity,Changsha410082,China [2]InstituteofMaterialsScienceandEngineering,ChangshaUniversityofScienceandTechnology,Changsha410076,China／／CollegeofMaterialsScienceandEngineering,HunanUniversity,Changsha410082,China |
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| 基金项目： | 国家自然科学基金，湖南大学校科研和教改项目 |
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| 摘 要： | Cu matrix composites reinforced by carbon nanotubes(CNTs) were prepared. The effect of carbon nanotubes on mechanical and tribological properties of the Cu matrix composites were investigated. The chemical method for coating CNTs was reported. The morphology of the fracture surfaces and worn surface were examined by SEM.The results show that Cu/coated-CNTs composites have higher hardness, much better wear resistance and antifriction properties than those of the reference Cu alloy (Cu-10Sn) and Cu/uncoated-CNTs composite sintered under the same conditions. The optimal mechanical properties of the composites occurred at 2. 25%(mass fraction) of CNTs. The excellent wear resistance and anti-friction properties are attributed to the fiber strengthening effect of CNTs and the effect of the spherical wear debris containing carbon nanotubes on the tribo-surface.
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| 关 键 词： | 碳纳米管 铜基质加固 复合材料 摩擦性质 |
Preparation and properties of Cu matrix composite reinforced by carbon nanotubes |
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| CHEN Xiao-hua,LI Wen-hua,CHEN Chuan-sheng,XU Long-shan,YANG Zhi,HU Jing.Preparation and properties of Cu matrix composite reinforced by carbon nanotubes[J].Transactions of Nonferrous Metals Society of China,2005,15(2):314-318. |
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| Authors: | CHEN Xiao-hua LI Wen-hua CHEN Chuan-sheng XU Long-shan YANG Zhi HU Jing |
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| Abstract: | Cu matrix composites reinforced by carbon nanotubes(CNTs) were prepared. The effect of carbon nanotubes on mechanical and tribological properties of the Cu matrix composites were investigated. The chemical method for coating CNTs was reported. The morphology of the fracture surfaces and worn surface were examined by SEM.The results show that Cu/coated-CNTs composites have higher hardness, much better wear resistance and antifriction properties than those of the reference Cu alloy (Cu-10Sn) and Cu/uncoated-CNTs composite sintered under the same conditions. The optimal mechanical properties of the composites occurred at 2. 25% (mass fraction) of CNTs. The excellent wear resistance and anti-friction properties are attributed to the fiber strengthening effect of CNTs and the effect of the spherical wear debris containing carbon nanotubes on the tribo-surface. |
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| Keywords: | carbon nanotube copper composite tribological property |
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