Effects of nano-Al2O3 and PTFE fillers on tribological property of basalt fabric-reinforced epoxy composites

IF 1.6 Q4 MATERIALS SCIENCE, COATINGS & FILMS Tribology - Materials, Surfaces & Interfaces Pub Date : 2021-10-02 DOI:10.1080/17515831.2020.1854509

Y. Şahin, De Baets Patrick

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引用次数: 1

Abstract

ABSTRACT Effects of nano-Al2O3 and PTFE fillers on tribological behaviour of basalt fabric reinforced epoxy composite (BFRC) produced with a combination of molding and mixing method were studied by Taguchi L9 design. Microstructures and worn surfaces of composites were investigated by scanning electron microscopy. Regression equations were also developed for predicting wear and coefficient of friction. The results indicated that specific wear rate increased with increasing load and decreasing speed, but friction coefficient decreased with increasing speed, PTFE addition and medium load. In addition, wear rate of nano-PTFE was lower than that of nano-Al2O3 because of its microstructure. PTFE decreased the friction about 17%. Load was effective on the wear rate while speed was dominant on the friction. Moreover, multiple fiber fractures and large numbers of debris were dominated for BFRC while fiber debondings, fiber removals and debris agglomerations were effective for Al2O3, but fiber fractures and flake types of debris were responsible for PTFE. GRAPHICAL ABSTRACT

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纳米al2o3和PTFE填料对玄武岩纤维增强环氧复合材料摩擦学性能的影响

采用田口L9设计，研究了纳米Al2O3和PTFE填料对成型与混合相结合制备的玄武岩织物增强环氧复合材料（BFRC）摩擦学性能的影响。用扫描电子显微镜研究了复合材料的微观结构和磨损表面。还建立了预测磨损和摩擦系数的回归方程。结果表明，比磨损率随载荷的增加和速度的降低而增加，但摩擦系数随速度的增加、PTFE的添加和介质载荷的增加而降低。此外，由于纳米PTFE的微观结构，其磨损率低于纳米Al2O3。PTFE使摩擦降低约17%。载荷对磨损率有效，而速度对摩擦起主导作用。此外，多纤维断裂和大量碎屑是BFRC的主要原因，而纤维脱粘、纤维去除和碎屑团聚对Al2O3有效，但纤维断裂和片状碎屑是PTFE的主要原因。图形摘要

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来源期刊

Tribology - Materials, Surfaces & Interfaces MATERIALS SCIENCE, COATINGS & FILMS-

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2.80

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0.00%

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