填充材料对玻璃/环氧复合材料磨粒磨损性能的影响

Q3 Engineering
B. Suresha, S. Vidyashree, Harshavardhan Bettegowda
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引用次数: 0

摘要

在制造聚合物基复合材料时,平纹织物和微米级填料提供双向强度并减少空隙/不均匀性。在本工作中,研究了玻璃纤维增强环氧复合材料(G-E)在有和没有陶瓷填料(SiO2, Al2O3,石墨和粉煤灰微球)的三体磨料磨损中的表现。实验中,在500 m、1000 m、1500 m和2000 m的不同磨损距离上分别施加20 N和40 N的载荷。砂磨磨损试验结果表明,G-E基复合材料的比磨损率对纤维和填料/基体的粘附性较为敏感。在各种摩擦试验条件下,颗粒状G-E复合材料的SWR减小的顺序为:G-E > Gr/G-E > SiO2/G-E > Al2O3/G-E >粉煤灰空心圈/G-E。粉煤灰空心球填充的G-E复合材料的比磨损率低于G-E和其他填料填充的G-E复合材料。在40 N, 2000 m条件下,粉煤灰空心球填充的G-E复合材料比磨损率降低了38.7%。根据磨损表面的扫描电子显微镜图像的证据,犁地、纤维断裂、纤维拔出、纤维变薄和微裂纹网络等机制导致了复合材料的磨损。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of Filler Materials on Abrasive Wear Performance of Glass/Epoxy Composites
When creating polymer-based composites, plain weave fabrics and micron-sized fillers offer bidirectional strength and reduced voids/inhomogeneity. In the present work, It was investigated how glass fabric reinforced epoxy composite (G-E) performed during three-body abrasive wear with and without ceramic fillers (SiO2, Al2O3, graphite, and fly ash cenospheres). In experiments, loads of 20 N and 40 N were applied at various abrading distances of 500 m, 1000 m, 1500 m, and 2000 m. According to the results of sand abrasive wear test, the specific wear rates of G-E based composites are sensitive to fibre and filler/matrix adhesion. Under all tribo-test settings, the SWR for all particulate G-E composites decreases in the following order: G-E > Gr/G-E > SiO2/G-E > Al2O3/G-E > fly ash cenosphere/G-E. Furthermore, the specific wear rate of the fly ash cenosphere filled G-E composites were found to be lower than the G-E and other filler materials filled G-E composites. There was 38.7% reduction in the specific wear rate at 40 N, 2000 m in fly ash cenosphere filled G-E composite. As per the evidence of scanning electron microscope images of worn-out surfaces, mechanisms such as ploughing, fibre breakage, fibre pull-out, fibre thinning, and a network of microcracks caused the wear in composites.
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来源期刊
Tribology in Industry
Tribology in Industry Engineering-Mechanical Engineering
CiteScore
2.80
自引率
0.00%
发文量
47
审稿时长
8 weeks
期刊介绍: he aim of Tribology in Industry journal is to publish quality experimental and theoretical research papers in fields of the science of friction, wear and lubrication and any closely related fields. The scope includes all aspects of materials science, surface science, applied physics and mechanical engineering which relate directly to the subjects of wear and friction. Topical areas include, but are not limited to: Friction, Wear, Lubricants, Surface characterization, Surface engineering, Nanotribology, Contact mechanics, Coatings, Alloys, Composites, Tribological design, Biotribology, Green Tribology.
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