Enhanced mechanical and electrical properties of novel graphene reinforced copper matrix composites

The present paper reports the effect of plain strain deformation on grain strengthening mechanism of iron (Fe) - alumina (Al2O3) Metal Matrix Nanocomposites (MMNCs) fabricated through powder metallurgical (P/M) processing. Specimens for the present study were weighed in required amount, ball milled, compacted at a load of 5, 6 and 7 tons followed by sintering in an atmospheric controlled furnace at 1100 °C for 1 hour. Plain strain deformation of samples was carried out at a load of 5 tons under different interfacial condition i.e. dry, solid lubricant and liquid lubricant. XRD studies reveal the formation of iron, alumina and nano iron-aluminate (FeAl2O4) phases respectively. Maximum average sintered density investigated for the specimen is found to be 4.6179 gm/cc compacted under 7 tons of load and minimum sintered density is found to be 4.4572 gm/cc for specimen compacted under 5 tons of load. Overall, fabricated Fe-Al2O3 metal matrix nanocomposites with powder metallurgy route when characterized for plain strain deformation shows strengthening between grain and grain boundary which can be a good candidate material for application in railways especially while designing railway structures and tracks.

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“…Micrographs of specimen deformed in oil interfacial condition shows the presence of FeAl 2 O 4 phase only. 20,21…”

Section: Discussionmentioning

confidence: 99%

Effect of plain strain deformation on grain strengthening mechanism of Fe-Al₂O₃ metal matrix nanocomposites

Gupta

Kumar

Jha

et al. 2020

Journal of Composite Materials

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“…Salvo et al fabricated the graphene reinforced Cu-MMCs, which was prepared by mechanical milling and hot-pressing method. 47 It is found that samples consolidated at the temperature of 600 C with the addition of 1 wt.% graphene nanosheets improved the electrical conductivity of copper composites by 22% as compared to pure Cu. It is also reported in the study that at higher sintering temperatures there is a decrease in electrical conductivity of copper composites by 14% when reinforced with 1 wt.% of GNS.…”

Section: Electrical Conductivitymentioning

confidence: 94%

“…Figure13. Variation of electrical resistivity with the GNS wt.% at different consolidations 47. GNS: graphene nanosheets.…”

mentioning

confidence: 99%

Towards sustainable copper matrix composites: Manufacturing routes with structural, mechanical, electrical and corrosion behaviour

Jamwal

Mittal

Agrawal

et al. 2020

Journal of Composite Materials

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In the last few decades, man has become more innovative in discovering new materials to make his life more sustainable. Copper metal matrix composite is the most promising material for many engineering applications where the higher temperature resistance and good microstructural stability is required. The sustainable development of copper metal matrix composite is based on the use of ceramics as reinforcements. The choice of reinforcement material is highly influenced by their mechanical properties such as hardness, wear resistance, cost advantage, availability in market and refractory nature. In the current scenario, copper and its alloy are gaining popularity due to their high sustainability, high conductivity and good corrosion resistance. However, the relatively low wear resistance and high temperature strength restrict the use of copper in many applications. Recent developments in metal matrix composites have provided new means to produce high sustainable copper metal matrix composite materials with high wear resistance and high strength materials. It has been found that the wear resistance and strength of materials can be improved by adding hard ceramic particles such as Al2O3, SiC, TiC and ZrO2 into the metal matrix. The aim of the present study is to summarise the research work carried out in the field of sustainable copper metal matrix composites. It also reports the various manufacturing routes along with the structural, mechanical, electrical and corrosion properties. It is found that copper metal matrix composites are preferred over the conventional composites. Sustainability issues around the globe has forced the industries to adopt the eco-friendly materials with their fabrication and machining routes, which results in less carbon emission and also has less affect to the environment. Fabrication of eco-friendly composites is an emerging research area, which has made several research scopes in production of sustainable composites. It is expected that this study can be beneficial for the researcher to decide their research direction in the field of sustainable material production.

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“…As metallic current collectors prone to corrosion during longterm cycling, elevating the resistance, and crack formation in the stressed zone while repeatedly mechanical deformation leads to rapid structural failure. In order to overcome such shortcomings, researchers have provided several types of suggestions such as, coated with graphene, [194][195][196] growing of CNTs on metallic current collectors [197][198][199] surface modifying with conducting polymer, 200 coated with carbon layers, 201,202 surface modication 203 In addition, Park et al synthesized honey comb like 3D structured Al and Cu by using reactive-ion etching (RIE) process, which reduce the total mass of electrodes and improved the adhesion strength with active materials results in enhanced exibility. 204 Metallic bril mesh-like conguration is another approach to preparing free-standing electrodes, which generates 3D conductive pathways through the whole electrodes and reduce the mass of electrodes while improve the capacity and exibility.…”

Section: Possible Solutions For Developing Metals-supported Stable Exible Electrodesmentioning

confidence: 99%

Review on carbonaceous materials and metal composites in deformable electrodes for flexible lithium-ion batteries

et al. 2021

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Enhanced mechanical and electrical properties of novel graphene reinforced copper matrix composites

Cited by 80 publications

References 32 publications

Effect of plain strain deformation on grain strengthening mechanism of Fe-Al₂O₃ metal matrix nanocomposites

Effect of plain strain deformation on grain strengthening mechanism of Fe-Al₂O₃ metal matrix nanocomposites

Towards sustainable copper matrix composites: Manufacturing routes with structural, mechanical, electrical and corrosion behaviour

Review on carbonaceous materials and metal composites in deformable electrodes for flexible lithium-ion batteries

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Enhanced mechanical and electrical properties of novel graphene reinforced copper matrix composites

Cited by 80 publications

References 32 publications

Effect of plain strain deformation on grain strengthening mechanism of Fe-Al2O3 metal matrix nanocomposites

Effect of plain strain deformation on grain strengthening mechanism of Fe-Al2O3 metal matrix nanocomposites

Towards sustainable copper matrix composites: Manufacturing routes with structural, mechanical, electrical and corrosion behaviour

Review on carbonaceous materials and metal composites in deformable electrodes for flexible lithium-ion batteries

Contact Info

Product

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Effect of plain strain deformation on grain strengthening mechanism of Fe-Al₂O₃ metal matrix nanocomposites

Effect of plain strain deformation on grain strengthening mechanism of Fe-Al₂O₃ metal matrix nanocomposites