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| 1 | Experimental investigation and prediction of tribological behavior of unidirectional short castor oil fiber reinforced epoxy composites显示文摘The present study aims at introducing a newly developed natural fiber called castor oil fiber,termed ricinus communis,as a possible reinforcement in tribo-composites.Unidirectional short castor oil fiber reinforced epoxy resin composites of different fiber lengths with 40%volume fraction were fabricated using hand layup technique.Dry sliding wear tests were performed on a pin-on-disc tribometer based on full factorial design of experiments(DoE)at four fiber lengths(5,10,15,and 20 mm),three normal loads(15,30,and 45 N),and three sliding distances(1,000,2,000,and 3,000 m).The effect of individual parameters on the amount of wear,interfacial temperature,and coefficient of friction was studied using analysis of variance(ANOVA).The composite with 5 mm fiber length provided the best tribological properties than 10,15,and 20 mm fiber length composites.The worn surfaces were analyzed under scanning electron microscope.Also,the tribological behavior of the composites was predicted using regression,artificial neural network(ANN)-single hidden layer,and ANN-multi hidden layer models.The confirmatory test results show the reliability of predicted models.ANN with multi hidden layers are found to predict the tribological performance accurately and then followed by ANN with single hidden layer and regression model. | Rajesh EGALA G V JAGADEESH Srinivasu Gangi SETTI | 2021 | Friction2021，9，2： | 1 |
| 2 | 玄武岩毡增强环氧润滑复合材料的制备及摩擦学性能研究显示文摘采用一步水热法将不同质量比的氧化石墨烯(GO)和固体石蜡(PW)吸附在玄武岩毡(BF)上制备三维(3D)润滑增强体,浇铸环氧树脂(EP)合成一系列EP/BF/GO/PW复合材料。研究了不同质量比GO/PW对EP基复合材料摩擦学性能的影响,采用扫描电子显微镜、X射线衍射光谱仪对复合材料的形貌和结晶性进行表征分析。结果表明:当GO与PW的质量比为1∶3时,复合材料的摩擦学性能最优。与纯EP相比,EP/BF/GO/PW(1∶3)复合材料的摩擦系数和体积磨损率分别降低了77.50%和14.36%,同时硬度提高了12.16%。 | 李梦涵 潘炳力 李明 梁志远 | 2023 | 化工新型材料2023，51，8： | 0 |
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