Mechanical properties of Al–Si–SiC composites

Tiwari, Saurabh; Das, Sourav; Venkat, A. N. Ch.

doi:10.1088/2053-1591/ab1521

Cited by 13 publications

(4 citation statements)

References 29 publications

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“…It has played a significant role in various areas, such as the aerospace, automotive, electronic instrumentation, and other industry. But in order to get high performance composite materials, it need a suitable interface for composites [1][2][3]. Due to the load is transferred through the interface of the composites under the action of external force.…”

Section: Introductionmentioning

confidence: 99%

HRTEM study of interfacial structure in SiCp/A390 composites

Wang

Han

et al. 2020

Mater. Res. Express

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SiCp/A390 composite was fabricated by powder metallurgy method and hot extrusion process. The interfacial microstructure of SiCp/A390 composites after heat treatment was characterized by HRTEM. The results show that the interface between SiC and Al matrix has an orientation relationship of [4510] SiC //[011] Al , (1010) SiC //(111) Al and forming a semi-coherent interface. The crystallographic orientation relationship between SiC and Si in the SiCp/A390 composites is [010] SiC //[001] Si , (004) SiC //(220) Si. The interplanar spacing of Al matrix on lattice plane (111) is close to the twice interplanar spacing of the Si phase on lattice plane (400). They keep a semi-coherent crystal plane, with an orientation relationship of [011] Al //[001] Si , (111) Al //(400) Si .

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Section: Introductionmentioning

confidence: 99%

HRTEM study of interfacial structure in SiCp/A390 composites

Wang

Han

et al. 2020

Mater. Res. Express

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“…Although a lot of work has been focused on the mechanical properties of Al-based MMCs [19,20,21,22], the understanding of the effects of reinforcements on thermal conductivity of Al-based MMCs is still lacking, and the thermal conductivity is also an important consideration in applications [23,24,25,26], such as in the heat dissipation of electric devices. A low or an inhomogeneous thermal conductivity in MMCs may cause catastrophic failures as a result of overheating or deformation [27,28,29,30].…”

Section: Introductionmentioning

confidence: 99%

Utilization of SiC and Cu Particles to Enhance Thermal and Mechanical Properties of Al Matrix Composites

Huang

Wang

et al. 2019

Materials

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In this work, SiC and Cu particles were utilized to enhance the thermal and mechanical properties of Al matrix composites. The ball-milling and cold-compact methods were applied to prepare Al matrix composites, and the uniform distribution of SiC and Cu particles in the composite confirms the validity of our preparation method. After characterizing the thermal conductivity and the compressibility of the prepared composites, results show that small particles have a higher potential to improve compressibility than large particles, which is attributed to the size effect of elastic modulus. The addition of SiC to the Al matrix will improve the compressibility behavior of Al matrix composites, and the compressibility can be enhanced by 100% when SiC content is increased from 0 to 30%. However, the addition of SiC particles has a negative effect on thermal conductivity because of the low thermal conductivity of SiC particles. The addition of Cu particles to Al-SiC MMCs could further slightly improve the compressibility behavior of Al-SiC/Cu MMCs, while the thermal conductivity could be enhanced by about 100% when the Cu content was increased from 0 to 30%. To meet the need for low density and high thermal conductivity in applications, it is more desirable to enhance the specific thermal conductivity by enlarging the preparation pressure and/or sintering temperature. This work is expected to supply some information for preparing Al matrix composites with low density but high thermal conductivity and high compressibility.

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“…These cast irons have become popular due to acceptable resistance against heat and creep and also due to existence of rather cheap alloy elements in their chemical compositions [11]. Unfortunately, casting of aluminum-bearing is one of the technological problems, since aluminum is quite active in the inoculation temperature, and it is necessary for the melt contact with the air and humidity to reach to its minimum, in order to avoid formation of metal slags, non-smooth or ragged surface and defected parts [12].…”

Section: Introductionmentioning

confidence: 99%

Influence of Aluminum and Silicon as Alloying Elements on Formation of Intermetallic Phase, Microstructure and Wear Resistance of Gray Cast Iron<strong> </strong>

Sanatizadeh¹,

Das²,

Kordijazi³

2019

Preprint

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Gray cast iron is one of the most important engineering materials that has many applications in various industries including automotive and machinery manufacturing due to its mechanical properties, wear resistance, machining potentials and low price. In this research effect of adding aluminum and silicon to composition of gray cast iron on microstructure and wear resistance was studied. Moreover, it was investigated the role of formation of Fe-Al-Si intermetallic compound in final properties of the alloy. For studying wear resistance of samples pin-on-disc method was carried out. The results showed that addition of aluminum to gray cast iron causes formation of ferrite matrix, which leads to a decrease in hardness value. Increasing silicon content up to 2 wt. % in cast iron with 4 wt. % aluminum intensifies the formation of ferrite matrix, while further increase to 3 wt. % causes emerging a Fe-Al-Si intermetallic phase. Improvement in hardness value was achieved by increasing silicon content from 3 wt. % to 4 wt. % due to the increased percentage of intermetallic phase. Effect of intermetallic phase on decreasing wear rate was showed by studying microstructure and hardness values, however the lowest wear resistance was observed in aluminum bearing cast iron containing 2 wt. % silicon. 

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Mechanical properties of Al–Si–SiC composites

Cited by 13 publications

References 29 publications

HRTEM study of interfacial structure in SiCp/A390 composites

HRTEM study of interfacial structure in SiCp/A390 composites

Utilization of SiC and Cu Particles to Enhance Thermal and Mechanical Properties of Al Matrix Composites

Influence of Aluminum and Silicon as Alloying Elements on Formation of Intermetallic Phase, Microstructure and Wear Resistance of Gray Cast Iron<strong> </strong>

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Mechanical properties of Al–Si–SiC composites

Cited by 13 publications

References 29 publications

HRTEM study of interfacial structure in SiCp/A390 composites

HRTEM study of interfacial structure in SiCp/A390 composites

Utilization of SiC and Cu Particles to Enhance Thermal and Mechanical Properties of Al Matrix Composites

Influence of Aluminum and Silicon as Alloying Elements on Formation of Intermetallic Phase, Microstructure and Wear Resistance of Gray Cast Iron<strong>&nbsp;</strong>

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Influence of Aluminum and Silicon as Alloying Elements on Formation of Intermetallic Phase, Microstructure and Wear Resistance of Gray Cast Iron<strong> </strong>