In the present study, the effect of addition of silica fume, also known as microsilica, and zinc oxide fillers on the erosive wear behavior of bidirectional E‐glass fiber‐based epoxy resin composites has been investigated. The amount of silica fume and zinc oxide fillers in the composites was changed in the interval from 0 to 16 wt.%. The erosive wear of the composites has been evaluated at different impingement angles from 20° to 90° and at four different impact velocities of 70, 100, 150, and 200 m/s. The erodent particles used were silicon carbide (SiC) with the average particle sizes of 72 μm, 175 μm, and 348 μm, respectively. The results show that the erosion rate increases with increasing impingement angle, impact velocity, exposure time, and erodent particle size in all the composites. By comparing the two types of fillers, the composites filled with silica fume showed better erosion resistance than those of zinc oxide‐filled composites at the same filler loading. The composite filled with 16 wt.% silica fume presented the best erosion resistant while the highest erosion rate was obtained at the composite filled with 16 wt.% zinc oxide. The morphology of eroded surfaces was examined by using scanning electron microscopy, and possible erosion mechanisms were discussed.

中文翻译：

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电子玻璃纤维增​​强硅粉和氧化锌填充的环氧树脂复合材料的磨损特性

在本研究中，已经研究了添加硅粉（也称为微硅粉）和氧化锌填料对双向E玻璃纤维基环氧树脂复合材料腐蚀磨损行为的影响。复合物中二氧化硅粉和氧化锌填料的量在0至16wt。％的范围内变化。在从20°到90°的不同撞击角度以及在70、100、150和200 m / s的四个不同撞击速度下，已经评估了复合材料的侵蚀磨损。所使用的侵蚀粒子是平均粒径分别为72μm，175μm和348μm的碳化硅（SiC）。结果表明，在所有复合材料中，腐蚀速率随冲击角，冲击速度，暴露时间和侵蚀颗粒尺寸的增加而增加。通过比较两种类型的填充物，在相同填充量下，填充有硅粉的复合材料比氧化锌填充的复合材料具有更好的耐蚀性。填充有16wt。％硅灰的复合材料表现出最好的抗腐蚀性能，而填充有16wt。％的氧化锌的复合材料则获得最高的腐蚀速率。使用扫描电子显微镜检查了被腐蚀表面的形貌，并讨论了可能的腐蚀机理。