A Novel Hot Compaction of Aluminum/Graphene Composite coated with Nano-silver

IF 1.6 4区材料科学 Q2 Materials Science Transactions of The Indian Institute of Metals Pub Date : 2024-08-16 DOI:10.1007/s12666-024-03437-2

Hossam M. Yehia, Ibrahim M. Ghayad, Tamer Abd-elmotaleb, Eman M. Abd-Elkareem, Walid M. Daoush

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Abstract

This research aimed to achieve three main objectives: studying the effect of milling time on graphite exfoliation, reducing fabrication heating time to prevent aluminum carbide formation, and investigating the impact of (alumina/graphene)/silver on aluminum properties. Four aluminum nanocomposites were produced using cold and hot pressing at 560 °C for 50 min under 1000 MPa. Raman analysis confirmed graphite exfoliation with alumina to graphene after 40 h of milling. The hot-pressed aluminum-5(alumina/graphene)/10 silver exhibited the smallest crystallite size at 79.926 nm and the highest hardness at 61 HV. It also demonstrated the lowest wear rate under different applied loads (45 and 90 N). The coefficient of friction was measured under 90 N, revealing the lowest mean coefficient of friction of 0.5 for aluminum-5(alumina/graphene)/10 silver, attributed to the presence of graphene and silver as solid lubricants. Aluminum/(alumina/graphene) showed superior corrosion resistance in the absence of silver, reducing the corrosion rate from 0.01 mm/year for pure aluminum to 0.0073 mm/year with the addition of 5 (alumina/graphene). The aluminum-5(alumina/graphene)/10 silver recorded a corrosion rate of 0.0114 mm/year.

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涂有纳米银的铝/石墨烯复合材料的新型热压实技术

本研究旨在实现三个主要目标：研究研磨时间对石墨剥离的影响，缩短制造加热时间以防止碳化铝的形成，以及研究（氧化铝/石墨烯）/银对铝性能的影响。在 560 ℃、1000 兆帕下冷压和热压 50 分钟，制得了四种铝纳米复合材料。拉曼分析证实，在研磨 40 小时后，氧化铝与石墨烯发生了石墨剥离。热压铝-5（氧化铝/石墨烯）/10 银的结晶尺寸最小（79.926 nm），硬度最高（61 HV）。在不同的施加载荷（45 N 和 90 N）下，它的磨损率也最低。在 90 N 下测量了摩擦系数，结果显示铝-5（氧化铝/石墨烯）/10 银的平均摩擦系数最低，为 0.5，这归功于石墨烯和银作为固体润滑剂的存在。铝/（氧化铝/石墨烯）在不含银的情况下表现出优异的耐腐蚀性，在添加 5（氧化铝/石墨烯）后，腐蚀速率从纯铝的 0.01 毫米/年降低到 0.0073 毫米/年。铝-5（氧化铝/石墨烯）/10 银的腐蚀速率为 0.0114 毫米/年。

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来源期刊

Transactions of The Indian Institute of Metals Materials Science-Metals and Alloys

CiteScore

2.60

自引率

6.20%

发文量

期刊介绍： Transactions of the Indian Institute of Metals publishes original research articles and reviews on ferrous and non-ferrous process metallurgy, structural and functional materials development, physical, chemical and mechanical metallurgy, welding science and technology, metal forming, particulate technologies, surface engineering, characterization of materials, thermodynamics and kinetics, materials modelling and other allied branches of Metallurgy and Materials Engineering. Transactions of the Indian Institute of Metals also serves as a forum for rapid publication of recent advances in all the branches of Metallurgy and Materials Engineering. The technical content of the journal is scrutinized by the Editorial Board composed of experts from various disciplines of Metallurgy and Materials Engineering. Editorial Advisory Board provides valuable advice on technical matters related to the publication of Transactions.