| Structure and micro-tribological properties of PTFE/Al_2O_3 micro-assembling film |
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| 作者姓名： | 汤卉 贾会娟 邵俊鹏 |
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| 作者单位： | Department of Materials Science and Engineering，Department of Materials Science and Engineering，Department of Materials Science and Engineering Harbin University of Science and Technology，Harbin 150080，China，Harbin University of Science and Technology，Harbin 150080，China，Harbin University of Science and Technology，Harbin 150080，China |
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| 基金项目： | Project(2 0 0 2AA5CG0 23)supportedbytheScientificTackleKeyProblemofHarbin,China |
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| 摘 要： | 1 INTRODUCTIONComparedwithBabbittpadsofthrustbearing ,theelasticmetallic plasticpadspossessthecombina tionofreliablerunning ,excellentperformance ,flexi bleoperation ,convenientinstallationandlongservicelife.Thereforetheelasticmetallic plasticpadsarewidelyemployedinverticalelectricmachinesofhy dropower plants .Polytetrafluoroethylene (PTFE )hasbeenusedasthesurfacematerialoftheelasticmetallic plasticpadsbecauseofitslowfrictioncoeffi cientandelectricalinsulation1] ;butitsstrengthandwearr…
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Structure and micro-tribological properties of PTFE/Al_2O_3 micro-assembling film |
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| TANG Hui,JIA Hui-juan,SHAO Jun-peng.Structure and micro-tribological properties of PTFE/Al_2O_3 micro-assembling film[J].Transactions of Nonferrous Metals Society of China,2003(6). |
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| Authors: | TANG Hui JIA Hui-juan SHAO Jun-peng |
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| Abstract: | In order to improve the wear resistance of elastic metallic-plastic thrust bearing pad, micro-assembling PTFE/Al_2O_3 multi-layer film was developed by alternating radio frequency(RF) magnetron sputtering PTFE and Al_2O_3 targets. For enhancing the adhesion of the interfaces between PTFE and Al_2O_3 film, N~+ implantation was employed. The structure, mechanical and micro-tribological properties were studied by XPS, X-ray photoelectron spectrometer and atomic force and friction force microscope (AFM/FFM). The results show that the multi-layer consists of Al_2O_3 component and crystalline PTFE. The hardness of the multi-layer modified by ion implantation is less than that of Al_2O_3,but its toughness is greatly improved. The friction coefficient of PTFE/ Al_2O_3 multi-layer modified by ion implantation is much lower than that of Al_2O_3 film, and its resistance to wear is much greater than that of PTFE film. Therefore the wear resistance of elastic metallic-plastic thrust bearing pad is greatly improved. |
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| Keywords: | multi-layer film PTFE ion implantation Al_2O_3 |
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