Effects of graphene content on the microstructure and mechanical properties of alumina-based composites

Zhu, Jun; Jia, Bin; Di, Yongjiang; Liu, Biao; Wan, Xiaofang; Wang, Wen-Rong; Tang, Rui; Shu, Lei; Chen, Xingyu

doi:10.3389/fmats.2022.965674

Cited by 4 publications

(2 citation statements)

References 26 publications

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“…They also provided a thorough overview of the several critical graphene applications. Zhu, Jun et al [12] prepared alumina-graphene composites by hot pressing with graphene concentrations ranging from 0.5 to 3%. The effects of graphene concentration on the mechanical characteristics and microstructure of ceramic composites were studied.…”

Section: Introductionmentioning

confidence: 99%

Effect of applied load on wear of microwave sintered alumina-graphene ceramic composite material

Vandana,

Rajyalakshmi,

2024

Eng. Res. Express

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Ceramic materials are of technical and commercial importance and can meet many engineering requirements owing to their thermal, chemical and mechanical performance. Due to its high density and hardness, alumina (Al2O3) is one of the main materials in this category that can be used to produce critical parts. An example of such an application is wear and abrasion resistance. The fabrication root technique and a suitable secondary reinforcement material can enhance a ceramic's wear characteristics. Hence the present work is mainly concentrated on the preparation of alumina ceramic composite material reinforced with different weight proportions of graphene ranging from 0.15wt% to 0.45 wt% (with an interval of 0.1) and fabrication through microwave sintering method. Wear studies are performed on graphene reinforced alumina ceramic material samples using pin-on-disk apparatus at different loads of 5N, 10N, 15N keeping speed of 0.8 m/sec and sliding distance of 40 m constant. The obtained wear results are compared with wear performance of pure alumina samples which are prepared in the same condition. Wear tests even at higher load of 15N revealed that the decrease in wear rate of the composite samples reinforced with 0.35 wt% of grapheme is 35.14% and in the composite samples reinforced with 0.45 wt% of graphene is 34.85% when compared with wear rate of monolithic alumina samples. The effect of different wt%s of graphene on wear properties of obtained ceramic composite is also studied through SEM analysis.

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Section: Introductionmentioning

confidence: 99%

Effect of applied load on wear of microwave sintered alumina-graphene ceramic composite material

Vandana,

Rajyalakshmi,

2024

Eng. Res. Express

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“…In recent years, with the rapid development of nanomaterials, scholars have been researching ways to improve structural performance (mechanical properties, durability, and long-term performance, etc.) by incorporating nanomaterials (Zhang and Li, 2011;Ali et al, 2013;Zhu et al, 2022;Gul et al, 2023). However, the application of nanotechnology in construction engineering is complex (Pacheco-Torgal and Jalali, 2011).…”

Section: Introductionmentioning

confidence: 99%

Mechanical and fatigue properties of graphene oxide concrete subjected to sulfate corrosion

Wang,

Zhang,

Liu

et al. 2023

Front. Mater.

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Concrete structures usually have to experience some unfavorable environmental actions during their service life, leading to the mechanical properties degradation, moreover, cyclic loadings such as traffic loads, wind loads may further accelerate structural damage, therefore, improving durability of concrete is of vital for structures servicing in severe environment. Graphene oxide (GO), as a new nano-reinforced material, has ultra-high mechanical properties and large specific surface area as a concrete reinforcing material. This study entailed an examination of the properties of Graphene Oxide Concrete (GOC) with varying levels of GO incorporation (0, 0.02, 0.05, 0.08 wt%). It also encompassed an analysis of the fatigue properties of GOC under different stress levels and varying sulfate wetting and drying cycles. Additionally, the investigation delved into the degradation mechanisms affecting Graphene Oxide Concrete (GOC) when subjected to sulfate erosion conditions. Furthermore, the study assessed the mass loss of specimens and their fatigue life under diverse environmental conditions. The results showed that appropriate GO incorporations could enhance concrete’s mechanical and fatigue properties after sulfate attack. In addition, scanning electron microscope (SEM) analysis showed that GO could adjust the aggregation state of cement hydration products and its own reaction with some cement hydration crystals to form strong covalent bonds, to improve and enhance microstructural denseness.

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Effect of graphene reinforcement on the tensile and flexural properties of thermoplastic polyurethane nanocomposite using experimental and simulation approach

Sahu,

Sreekanth,

Saxena

et al. 2024

Advances in Materials and Processing Technologies

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Effects of graphene content on the microstructure and mechanical properties of alumina-based composites

Cited by 4 publications

References 26 publications

Effect of applied load on wear of microwave sintered alumina-graphene ceramic composite material

Effect of applied load on wear of microwave sintered alumina-graphene ceramic composite material

Mechanical and fatigue properties of graphene oxide concrete subjected to sulfate corrosion

Effect of graphene reinforcement on the tensile and flexural properties of thermoplastic polyurethane nanocomposite using experimental and simulation approach

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