| Aluminum ion beam surface modification of elastic metallic-plastic pads for improving tribological properties |
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| 作者姓名： | 邵俊鹏 贾会娟 汤卉 |
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| 作者单位： | Department of Mechanical Engineering，Harbin University of Science and Technology，Harbin 150080，China，College of Pharmaceutics and Biotechnology，Tianjin University，Tianjin 300072，China，Department of Mechanical Engineering，Harbin University of Science and Technology，Harbin 150080，China |
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| 基金项目： | Project(2003AFXXJ005)supportedbyHarbinScienceandTechnologyCommittee,China |
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| 摘 要： | 1INTRODUCTION Theelasticmetallic plasticpads(EMP)arewidelyusedinverticalelectricmachinesofhydro powerplants.ThesurfacematerialofEMPis PTFE.ThePTFEhaslowfrictioncoefficientand excellentinsulativity,butthestrength,hardnessandwear resistantpropertiesarenotsatisfacto ry1].Inordertoimprovethestrength,hardness andwear resistantcharacterofPTFE,somephysi calcomminglingmethodsareused24].Inrecentyears,therehasbeenever increasing interestinthesurfacemodificationofpolymerstoimprovetheirchemi…
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| 关 键 词： | 弹性金属塑料垫 离子束注入 摩擦性质 铝 金属蒸气真空电弧 |
Aluminum ion beam surface modification of elastic metallic-plastic pads for improving tribological properties |
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| SHAO Jun-peng,JIA Hui-Juan,TANG Hui.Aluminum ion beam surface modification of elastic metallic-plastic pads for improving tribological properties[J].Transactions of Nonferrous Metals Society of China,2005,15(3):524-528. |
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| Authors: | SHAO Jun-peng JIA Hui-Juan TANG Hui |
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| Abstract: | Elastic metallic-plastic pads(EMP) were irradiated by low energy aluminum ion in a metal vapor vacuum arc(MEVVA) 80-10 implantation system. The samples were irradiated with 20 keV Al ion with the influx from 1 × 1015 to 1 × 1016 Al/cm2. Then the as-irradiated samples were measured by ESCA, XRD, AFM/FFM and a nanoprobe. It is found that the hardness of as-irradiated samples is 5 - 6 times as that of the pristine ones. The worn depth of sample implanted at ion influx of 1 × 1016 Al/cm2 is about one eighth of that of the pristine sample at the same load. The XRD results show that there are some Al2 O3 and AlF3 intermingled with the phase of polytetrafluoroethylene(PTFE). The experimental results reveal that the tribological properties of EMP can be significantly improved by the ion beam surface modification. |
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| Keywords: | elastic metallic-plastic pads ion beam implantation tribological property Al |
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