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硅基底复合自组装膜的制备及其微摩擦磨损性能研究 被引量:1
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作者 刘同冈 游坤 +1 位作者 赵康康 查塔尔 《摩擦学学报》 EI CAS CSCD 北大核心 2019年第4期444-451,共8页
采用共吸附法,在硅基底表面制备3-氨基丙基三乙氧基硅烷(APS)和十二烷基三甲氧基硅烷(WD-10)复合自组装膜.通过分子动力学模拟不同温度与混合分子在不同比例下的混合体系界面结合能;依据模拟结果,采用正交试验法设计试验方案制备9种不... 采用共吸附法,在硅基底表面制备3-氨基丙基三乙氧基硅烷(APS)和十二烷基三甲氧基硅烷(WD-10)复合自组装膜.通过分子动力学模拟不同温度与混合分子在不同比例下的混合体系界面结合能;依据模拟结果,采用正交试验法设计试验方案制备9种不同条件下的自组装膜;采用原子力显微镜、接触角测定仪以及X射线光电子能谱仪对自组装膜的表面形貌、湿润性能和化学成分进行表征分析;利用微摩擦测试仪对自组装膜的微摩擦磨损性能进行性能测试.结果表明:混合分子成功组装到羟基化硅基底表面,并且当组装温度为25℃,组装时间为4 h,组装溶液的pH为6时,自组装膜的质量较好;制备的复合自组装膜由于引起了边界润滑效应,有效减小了试件表面的摩擦磨损,且两种混合分子比例为1:1时自组装膜的减摩特性最佳. 展开更多
关键词 共吸附法 硅基底 复合自组装膜 微摩擦磨损性能 边界润滑效应
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Establishment of wear model and life prediction of drum of hot rolling coiler
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作者 章健 彭艳 +1 位作者 刘宏民 刘云飞 《Journal of Central South University》 SCIE EI CAS 2011年第6期1808-1812,共5页
For the drum of hot rolling coiler is prone to be easily destroyed, the type of MMU-5G abrasion tester was applied to revealing the friction and wear behavior. The morphology observation by scanning electron microscop... For the drum of hot rolling coiler is prone to be easily destroyed, the type of MMU-5G abrasion tester was applied to revealing the friction and wear behavior. The morphology observation by scanning electron microscope (SEM) demonstrates the wear mechanism of the drum, and the test data of the influence coefficient of the normal pressure, relative sliding speed and surface lubrication conditions acted on the linear rate of the wear could be obtained by the regression method. A calculation model, which considers the factors of the structure of the drum, coiling tension and coiling strip specifications, was established by the combination method to predict the wear life of the drum. Then the practical production data was applied into this model and the analysis result was in good accordance with that of actual production. 展开更多
关键词 DRUM wear mechanism combination method wear model wear life
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