Behavior of Intermetallic Compounds of Al-Ti Composite Manufactured by Spark Plasma Sintering

Park, Kwang-jae; Kim, Dasom; Kim, Kyungju; Cho, Seungchan; Kwon, Hansang

doi:10.3390/ma12020331

Cited by 19 publications

(11 citation statements)

References 34 publications

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“…As can be observed from Figure 8(a), the weights of all powders rapidly increased with increasing temperature, from approximately 860.10 to 1000 °C. The formation of oxides, which were generated due to the exothermic reactions between Al and oxygen, was assumed to have caused the increase in weight [55]. In addition, due to the heat involved in the TGA process, Al and oxygen reacted to form Al 2 O 3 , and their presence in the composites was confirmed using the XRD patterns.…”

Section: Fine Grinding Using Pastlementioning

confidence: 96%

The Role of Tetra Hybrid Reinforcements on the Behavior of Aluminum Metal Matrix Composites

Ashebir

Mengesha

Sinha

2022

Journal of Nanomaterials

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Hybrid aluminum matrix composites (HAMCs) are a new class of advanced materials that can be customized and engineered to achieve specific properties for specific applications in specific environments. HAMCs find a wide range of popularity in the transportation sector because of lower noise and lower fuel consumption over other materials. This research aims to synthesize, characterize, and test the physicomechanical characteristics of tetra hybrid (SiC, Al2O3, Gr, and sugarcane bagasse ash (SCBA)) reinforced HAMCs via powder metallurgy (PM) processing. Tetra hybrid reinforced HAMCs were synthesized using a pure Al matrix with fixed wt% of primary reinforcements (5 wt% SiC and 5 wt% Al2O3) and varying wt% of secondary reinforcements such as 0.5, 2.5, 4.5, and 6.5 wt% Gr and 0.5, 2.5, 4.5, and 6.5 wt% SCBA. It mainly focused on phase purity investigation using XRD, thermal analysis using TGA-DTA, and surface area and micropore size analysis using BET and physicomechanical tests to explore the materials’ behavior of the newly synthesized HAMCs. The increase in wt% of secondary reinforcements decreases both the density and porosity while increasing the hardness and compressive strength up to a certain level above which it begins to reverse because of the increase in wt% of hard particles of SiC, Al2O3, and SCBA. The Vickers hardness and compressive strength of the AS4 HAMC with 10 wt% (SiC+Al2O3) and 9 wt% (Gr+SCBA) were improved by 446.40% and 209.75%, respectively. The newly synthesized tetra hybrid reinforced HAMCs showed superior physicomechanical properties compared to pure Al and single and double reinforced HAMCs. As a result, the new tetra hybrid reinforced HAMC material is predicted to have potential applications in automotive, aerospace, defense, and various other structural applications.

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Section: Fine Grinding Using Pastlementioning

confidence: 96%

The Role of Tetra Hybrid Reinforcements on the Behavior of Aluminum Metal Matrix Composites

Ashebir

Mengesha

Sinha

2022

Journal of Nanomaterials

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“…As a result, alloy or composite-related studies have been conducted owing to the demands for various functions in a single material. Low-density aluminium has a relatively lower hardness than other metals; thus, materials such as Fe, Mg, SiC, B, Ti, V, diamond, and carbon nanotubes (CNT) are added as composites to increase the hardness [17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33]. Kwon et al [34] fabricated Al–CNT composites through a combination of spark plasma sintering and a hot extrusion process.…”

Section: Introductionmentioning

confidence: 99%

Effect of Intermetallic Compounds on the Thermal and Mechanical Properties of Al–Cu Composite Materials Fabricated by Spark Plasma Sintering

Kim

Park

et al. 2019

Materials

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Aluminium–copper composite materials were successfully fabricated using spark plasma sintering with Al and Cu powders as the raw materials. Al–Cu composite powders were fabricated through a ball milling process, and the effect of the Cu content was investigated. Composite materials composed of Al–20Cu, Al–50Cu, and Al–80Cu (vol.%) were sintered by a spark plasma sintering process, which was carried out at 520 °C and 50 MPa for 5 min. The phase analysis of the composite materials by X-ray diffraction (XRD) and energy-dispersive spectroscopy (EDS) indicated that intermetallic compounds (IC) such as CuAl2 and Cu9Al4 were formed through reactions between Cu and Al during the spark plasma sintering process. The mechanical properties of the composites were analysed using a Vickers hardness tester. The Al–50Cu composite had a hardness of approximately 151 HV, which is higher than that of the other composites. The thermal conductivity of the composite materials was measured by laser flash analysis, and the highest value was obtained for the Al–80Cu composite material. This suggests that the Cu content affects physical properties of the Al–Cu composite material as well as the amount of intermetallic compounds formed in the composite material.

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“…The observed alloying mechanisms are described in many publications. Other authors [ 40 , 41 ] describe the influence of Ti and the amount of compound used on the mechanical properties of Al matrix composites. A further investigation showed the strong influence of manufacturing technique on the composite properties [ 42 ].…”

Section: Discussionmentioning

confidence: 99%

Al Matrix Composites Reinforced by Ti and C Dedicated to Work at Elevated Temperature

et al. 2021

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In this paper, the applicability of aluminium matrix composites to high-temperature working conditions (not exceeding the Al melting point) was evaluated. The behaviour of Al-Ti-C composites at elevated temperatures was described based on microstructural and phase composition observations for composites heated at temperatures of 540 and 600 °C over differing time intervals from 2 to 72 h. The materials investigated were aluminium matrix composites (AMC) reinforced with a spatial carbon (C) structure covered by a titanium (Ti) layer. This layer protected the carbon surface against contact with the aluminium during processing, protection which was maintained for the material’s lifetime and ensured the required phase compositions of Al4C3 phase limitation and AlTi3 phase creation. It was also proved that heat treatment influenced not only phase compositions but also the microstructure of the material, and, as a consequence, the properties of the composite.

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Behavior of Intermetallic Compounds of Al-Ti Composite Manufactured by Spark Plasma Sintering

Cited by 19 publications

References 34 publications

The Role of Tetra Hybrid Reinforcements on the Behavior of Aluminum Metal Matrix Composites

The Role of Tetra Hybrid Reinforcements on the Behavior of Aluminum Metal Matrix Composites

Effect of Intermetallic Compounds on the Thermal and Mechanical Properties of Al–Cu Composite Materials Fabricated by Spark Plasma Sintering

Al Matrix Composites Reinforced by Ti and C Dedicated to Work at Elevated Temperature

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