Mechanical and thermal properties of nanocarbon-reinforced aluminum matrix composites at elevated temperatures

Shin, S.; Ko, Young‐Jin; Bae, D.H.

doi:10.1016/j.compositesb.2016.09.017

Cited by 140 publications

(42 citation statements)

References 37 publications

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“…This has led to the research activity in order to achieve the best possible results in the strengthening of materials [6][7][8][9]. Real and critical issue for wide applications of composite materials seems to be maintaining the relative high strength properties when operating at ambient temperature or at elevated temperatures [10][11][12][13]. These materials are characterized by the high mechanical properties such as tensile, bending or compression strength, but on the other hand they are not characterized by the large impact strength.…”

Section: Introductionmentioning

confidence: 99%

Impact Strength of Composite Materials Based on EN AC-44200 Matrix Reinforced with Al2O3 Particles

Kurzawa

Kaczmar

2017

Archives of Foundry Engineering

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The paper presents the results of research of impact strength of aluminum alloy EN AC-44200 based composite materials reinforced with alumina particles. The research was carried out applying the materials produced by the pressure infiltration method of ceramic preforms made of Al2O3 particles of 3-6m with the liquid EN AC-44200 Al alloy. The research was aimed at determining the composite resistance to dynamic loads, taking into account the volume of reinforcing particles (from 10 to 40% by volume) at an ambient of 23°C and at elevated temperatures to a maximum of 300°C. The results of this study were referred to the unreinforced matrix EN AC-44200 and to its hardness and tensile strength. Based on microscopic studies, an analysis and description of crack mechanics of the tested materials were performed. Structural analysis of a fracture surface, material structures under the crack surfaces of the matrix and cracking of the reinforcing particles were performed.

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Section: Introductionmentioning

confidence: 99%

Impact Strength of Composite Materials Based on EN AC-44200 Matrix Reinforced with Al2O3 Particles

Kurzawa

Kaczmar

2017

Archives of Foundry Engineering

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“…It is clear from Figure 6 that the typical D-band (from defect), G-band (from graphite), and 2D band (shape of the second-order Raman bands) of graphitic carbons are detected at 1335 cm -1 , 1590 cm -1 , and 2773 cm -1 respectively, for the initial material. [25][26][27] During hot pressing, the band shift and broadening can occur by structural defects and domain size in graphitic materials, and damage of crystalline graphitic structure. However, the band broadening can only be observed during sliding.…”

Section: ( )) a A A E A E A E A E A E A A A Ementioning

confidence: 99%

Sliding-wear behavior of aluminum-matrix composites reinforced with graphene and SiC nanoparticles

Zheng¹,

Du²,

Qi³

et al. 2020

Mater. Tehnol.

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The microstructure, hardness and tribological properties of hot-pressed Al 7075 matrix composites containing the same SiC nanoparticles and different amounts of graphene were investigated. The results show that the Al-SiC-graphene composites exhibit higher hardness and wear resistance compared with Al-SiC composite and Al 7075 alloy.The friction coefficients decrease significantly with the increase of graphene content in the composites, whereas the limited impact on reducing friction is found on SiC nanoparticles. The dominant wear mechanism of Al-SiC-graphene composites transfers from abrasive wear to delamination wear with the increase of graphene content in the composites. It is believed that the hardness and wear-resistance improvements of the Al-SiC-graphene composites are attributed to the unique strengthening effect as well as the good lubricating efficiency of graphene, which demonstrates that graphene is an ideal filler for aluminum-matrix composites, acting as not only a favorable reinforcement but also an impactful lubricant.

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“…To overcome the limitations of the high-temperature mechanical properties of aluminum alloys, carbon materials (carbon fiber, carbon nanotube (CNT), graphene, etc.) reinforced aluminum matrix composites (AMCs) have been fabricated owing to their excellent properties such as high strength, high modulus, heat resistance and wear resistance [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

The Evolution of Interfacial Microstructure and Fracture Behavior of Short Carbon Fiber Reinforced 2024 Al Composites at High Temperature

Zhang

Meng

et al. 2019

Applied Sciences

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The short carbon fiber reinforced 2024 Al composites were fabricated through powder metallurgy. The effect of short carbon fiber content on the interfacial microstructure and fracture behavior of the composites at different temperatures were investigated. The results showed that the dislocation accumulation was formed in the aluminum matrix due to the thermal expansion mismatch between carbon fiber and aluminum matrix. With the testing temperature increasing, the size of interfacial product Al4C3 and precipitates Al2Cu became larger, and the segregation of Al2Cu was found coarsening around Al4C3. The addition of short carbon fiber improved the hardness and modulus of the aluminum matrix in the vicinity of the interface between carbon fiber and aluminum matrix. Compared to the matrix 2024 Al, the yield strength and ultimate tensile strength of the composites first increased and then decreased with increasing short carbon fiber content at room temperature 423 Kand 523 K. The fracture surface of the composites at room temperature was characterized by shear failure of fiber, while the interface debonding and fiber pulled-out became predominant fracture morphologies for the fracture surface at increased temperatures.

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Mechanical and thermal properties of nanocarbon-reinforced aluminum matrix composites at elevated temperatures

Cited by 140 publications

References 37 publications

Impact Strength of Composite Materials Based on EN AC-44200 Matrix Reinforced with Al2O3 Particles

Impact Strength of Composite Materials Based on EN AC-44200 Matrix Reinforced with Al2O3 Particles

Sliding-wear behavior of aluminum-matrix composites reinforced with graphene and SiC nanoparticles

The Evolution of Interfacial Microstructure and Fracture Behavior of Short Carbon Fiber Reinforced 2024 Al Composites at High Temperature

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