| Effect of Rare Earths on Tribological Properties of Carbon Fibers Reinforced PTFE Composites |
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| 引用本文： | 上官倩芡 程先华. Effect of Rare Earths on Tribological Properties of Carbon Fibers Reinforced PTFE Composites[J]. 中国稀土学报(英文版), 2007, 25(4): 469-473. DOI: 10.1016/S1002-0721(07)60458-X |
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| 作者姓名： | 上官倩芡 程先华 |
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| 作者单位： | [1]School of Mechanical ＆ Power Engineering, Shanghai Jiao Tong University, Shanghai 200030, China [2]State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China （50275093）Acknowledgments： The authors would like to thank the Instru- mental Analysis Center of Shanghai Jiao Tong University for the technical assistance received from them in matters related to the SEM instrument. |
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| 摘 要： | Carbon fibers （CF） were surface treated with air-oxidation and rare earths （RE）, respectively. The effect of RE surface treatment on tensile strength and tribological properties of CF reinforced polytetrafluoroethylene （PTFE） composites was invest/gated. Experimental results revealed that RE was superior to air ox/dation in improving the tensile strength, elongation, and the tensile modulus of CF reinforced PTFE （CF/PTFE） composite. Compared to the untreated and air-oxidated CF/PTFE composite, the RE treated composite had the lowest friction coefficient and specific wear rate under a given applied load and reciprocating sliding frequency. The RE treatment effectively improved the interfacial adhesion between CF and PTFE. With strong interfacial coupling, the carbon fibers carried most of the load, and direct contact and adhesion between PTFE and the counterpart were reduced, accordingly the friction and wear properties of the composite were improved.
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| 关 键 词： | 表面治疗 碳纤维 机械摩擦 稀土 |
| 文章编号： | 1002-0721（2007）04-0469-05 |
| 收稿时间： | 2006-10-15 |
| 修稿时间： | 2006-10-15 |
Effect of Rare Earths on Tribological Properties of Carbon Fibers Reinforced PTFE Composites |
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| Shangguan Qianqian,Cheng Xianhua. Effect of Rare Earths on Tribological Properties of Carbon Fibers Reinforced PTFE Composites[J]. Journal of Rare Earths, 2007, 25(4): 469-473. DOI: 10.1016/S1002-0721(07)60458-X |
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| Authors: | Shangguan Qianqian Cheng Xianhua |
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| Affiliation: | 1. School of Mechanical & Power Engineering, Shanghai Jiao Tong University, Shanghai 200030, China;2. State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China |
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| Abstract: | Carbon fibers (CF) were surface treated with air-oxidation and rare earths (RE), respectively. The effect of RE surface treatment on tensile strength and tribological properties of CF reinforced polytetrafluoroethylene (PTFE) composites was investigated. Experimental results revealed that RE was superior to air oxidation in improving the tensile strength, elongation, and the tensile modulus of CF reinforced PTFE (CF/PTFE) composite. Compared to the untreated and air-oxidated CF/PTFE composite, the RE treated composite had the lowest friction coefficient and specific wear rate under a given applied load and reciprocating sliding frequency. The RE treatment effectively improved the interfacial adhesion between CF and PTFE. With strong interfacial coupling, the carbon fibers carried most of the load, and direct contact and adhesion between PTFE and the counterpart were reduced, accordingly the friction and wear properties of the composite were improved. |
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| Keywords: | PTFE composites carbon fiber surface treatment tensile properties tribological properties rare earths |
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