Analysis of wear tracks and mechanical properties evaluation of TiO2 and Al2O3 reinforced hybrid epoxy composites

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-06-18 DOI:10.1016/j.matlet.2025.138953

Balu Maloth , Votarikari Naveen Kumar

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Abstract

Epoxy composites reinforced with Al₂O₃ and TiO₂ are excellent for marine applications, pipelines, and industrial flooring due to their remarkable mechanical strength. However, wider use is restricted by their intrinsic low wear resistance. This study overcomes this constraint by introducing the idea of hybrid composites, which incorporate titanium dioxide (TiO₂) and aluminium oxide (Al₂O₃) into the epoxy matrix. The addition improved microhardness by up to 21.74 %, higher than pure epoxy. Scanning electron microscopy (SEM) examined surface properties and failure mechanisms. Additionally, wear track is analysed to assess and forecast the composites’ structural performance under shear and normal loading conditions. Wear rate is reduced by 40 % at 10 wt% TiO₂ and Al₂O₃ reinforcements of each. These results pave the way for epoxy-based material optimisation for increased structural dependability and durability.

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TiO2和Al2O3增强杂化环氧复合材料的磨损轨迹分析及力学性能评价

由Al2O3和TiO2增强的环氧复合材料由于其卓越的机械强度，在船舶应用，管道和工业地坪方面表现优异。然而，由于其固有的低耐磨性，限制了其广泛使用。本研究通过将二氧化钛（TiO2）和氧化铝（Al2O3）掺入环氧树脂基体的混合复合材料的想法克服了这一限制。显微硬度提高21.74%，高于纯环氧树脂。扫描电子显微镜（SEM）检查了表面特性和失效机制。通过对磨损轨迹的分析，评估和预测复合材料在剪切和正常载荷条件下的结构性能。当TiO2和Al2O3增强量分别为10 wt%时，磨损率降低了40%。这些结果为环氧基材料优化铺平了道路，以提高结构可靠性和耐久性。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive