Effect of SiC content on microstructure, mechanical and electrical properties of sintered Al-20Si-xSiC nanocomposites fabricated by mechanical alloying

Zawrah, M.F.; Mostafa, H. Abo; Taha, Mohammed A.

doi:10.1088/2053-1591/ab534e

Cited by 25 publications

(11 citation statements)

References 60 publications

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“…In that study they indicated that the bulk density increases with increasing the amount of zircon content after sintering at 600 and 650 o C and after adding up to 30 wt.% of zircon. It has also been reported by Zawrah et al that the addition of ceramic particles to metal-base composite has positive effect on physical and mechanical properties [44][45][46].…”

Section: Bulk Density and Apparent Porosity Of Sintered Compositesmentioning

confidence: 67%

Effect of zircon and aluminum dross on sinterability and properties Al-matrix composites

Zawrah

Allahb

Mohamed³

et al. 2021

Sohag Engineering Journal

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In the present study, Al-matrix composites reinforced by zircon and aluminum dross were prepared by powder metallurgy after sintering at 500 o C. The effect of different percentages of zircon i.e. 2, 4, 6, 8 and 10 wt. %, and aluminum dross i.e. 5, 10, 15, and 20 wt. %, on the physical properties (apparent porosity and bulk density), microstructure and microhardness were investigated in details. The apparent porosity and bulk density were determined by water displacement method according to Archimedes rule, while the microstructure was investigated by scanning electron microscope. The Microhardness was measured by Vickers tester. The results showed that the physical properties and microstructure were improved after increasing the amount of added zircon or aluminum dross. Moreover, the hardness of sintered composites was increased with increasing both zircon and aluminum dross. The hardness of zircon containing composites was lower than the hardness of aluminum dross containing composites. The maximum hardness values were obtained for Al/10% zircon (472 MPa) and Al/20% aluminum dross (532 MPa).

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Section: Bulk Density and Apparent Porosity Of Sintered Compositesmentioning

confidence: 67%

Effect of zircon and aluminum dross on sinterability and properties Al-matrix composites

Zawrah

Allahb

Mohamed³

et al. 2021

Sohag Engineering Journal

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“…Then, the milled powders were pressed and sintered at 470 and 570 °C in an argon atmosphere for 1 h. Notably, the rule of mixture was carried out to calculate the theoretical densities of samples taking into account the density of the Al-Cu-Mg alloy = 2.7 g/cm 3 and the density of ZrO 2 = 5.68 g/cm 3 . On the other hand,…”

Section: Materials and Experimental Set Upmentioning

confidence: 99%

“…4. By considering the theoretical densities of AZ0, AZ2, AZ4, AZ8 and AZ16 samples=2.65, 2.68, 2.71, 2.77 and 2.90 g/cm 3 , respectively, the values of the relative densities of AZ0 and AZ16 after sintering at 460 °C are 93.22 and 85.96%, respectively. On the opposite side, those of the apparent porosity are 6.88 and 11.01%, respectively for the same samples sintered at 460 °C.…”

Section: Physical Propertiesmentioning

confidence: 99%

“…Aluminum is the best preferred material as a matrix for the production of Al matrix compounds (AMCs) reinforced with ceramic particles. Due to these attractive properties, AMCs have a strong role to play in different industrial areas such as car enterprises, aerospace, defense and military industries [1][2][3]. On the other hand, Al alloys are best used as a matrix due to their high strength and low ductility compared to pure Al.…”

Section: Introductionmentioning

confidence: 99%

“…Importantly, the addition of ceramics like SiC [3,12], Al 2 O 3 [13], ZrO 2 [14], TiC [15] and graphene [16,17] is considered as the optimal solution to overcome this serious obstacle. In this sense, fine stabilized ZrO 2 is a good choice for this required task due to its superior mechanical properties, high melting temperature, better corrosion resistance, compared to that of Al and its alloys, and perfect thermal and chemical stability [10].…”

Section: Introductionmentioning

confidence: 99%

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A comprehensive study of Al-Cu-Mg system reinforced with nano-ZrO2 particles synthesized by powder metallurgy technique

AbuShanab

Moustafa

Ghandourah

et al. 2021

Preprint

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Recently, increasing attention has been devoted to improving the various properties of aluminum alloys such as strength, elastic modulus, and coefficient of thermal expansion (CTE) as well as wear and corrosion by adding different percentages of ceramics for use in various industrial applications. In this sense, powder metallurgy technique has been used to fabricate Al-4.2 wt.% Cu-1.6 wt.% Mg matrix nanocomposites reinforced by different weight percentages of nano-ZrO2 particles. The microstructure and particle size distributions of the prepared powders were examined by SEM, TEM technique and diffraction particle size analyzer. The prepared powders were compacted and sintered in argon to obtain good sinterability. The physical, elastic and mechanical properties of the sintered nanocomposites were measured. Furthermore, thermal expansion, wear and corrosion behavior were also studied. The results showed that the decrease in the particle sizes of the Al-Cu-Mg alloy by adding ZrO2 nanoparticles up to 47.8 nm for the composite containing 16 wt.% ZrO2. With increasing the sintering temperature to 570 °C, the densification of nanocomposites was clearly enhanced. Also, the coefficient of thermal expansion and wear rate were remarkably decreases about 28 and 37.5 % with adding after adding 16 wt. % ZrO2. Moreover, microhardness yield, strength and Young’s modulus were enhanced to 161, 145 and 64%, respectively after adding 16 wt.% ZrO2. In addition, increasing the exposure time was responsible for decreasing the corrosion rate for the same sample.

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Advanced Ceramics: Stages of Development

Zawrah,

Taha,

Youness

2023

Advances in Material Research and Technology

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Effect of SiC content on microstructure, mechanical and electrical properties of sintered Al-20Si-xSiC nanocomposites fabricated by mechanical alloying

Cited by 25 publications

References 60 publications

Effect of zircon and aluminum dross on sinterability and properties Al-matrix composites

Effect of zircon and aluminum dross on sinterability and properties Al-matrix composites

A comprehensive study of Al-Cu-Mg system reinforced with nano-ZrO2 particles synthesized by powder metallurgy technique

Advanced Ceramics: Stages of Development

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Effect of SiC content on microstructure, mechanical and electrical properties of sintered Al-20Si-xSiC nanocomposites fabricated by mechanical alloying

Cited by 25 publications

References 60 publications

Effect of zircon and aluminum dross on sinterability and properties Al-matrix composites

Effect of zircon and aluminum dross on sinterability and properties Al-matrix composites

A comprehensive study of Al-Cu-Mg&nbsp;system reinforced with nano-ZrO2 particles synthesized by powder metallurgy technique

Advanced Ceramics: Stages of Development

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Product

Resources

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A comprehensive study of Al-Cu-Mg system reinforced with nano-ZrO2 particles synthesized by powder metallurgy technique