Vanadium carbide reinforced aluminum matrix composite prepared by conventional, microwave and spark plasma sintering

Ghasali, Ehsan; Pakseresht, Amirhossein; Alizadeh, Mohammad; Shirvanimoghaddam, Kamyar; Ebadzadeh, Touradj

doi:10.1016/j.jallcom.2016.07.063

Cited by 79 publications

(28 citation statements)

References 32 publications

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“…Spark plasma sintering (SPS) has some advantages such as rapid sintering, uniform sintering, low running cost, easy operation proves a suitable sintering technique for consolidation nano-structure, nanocomposite, and amorphous materials. In SPS, very high temperature over melting temperature may be attained in the contact area of powder particles which enhances interparticle bonding without considerable grain growth occurring [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Characterization of In-Situ Cu–TiH2–C and Cu–Ti–C Nanocomposites Produced by Mechanical Milling and Spark Plasma Sintering

Oanh

Việt

Kim

et al. 2017

Metals

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This study focuses on the fabrication and microstructural investigation of Cu-TiH2-C and Cu-Ti-C nanocomposites with different volume fractions (10% and 20%) of TiC. Two mixtures of powders were ball milled for 10 h, consequently consolidated by spark plasma sintering (SPS) at 900 and 1000 • C producing bulk materials with relative densities of 95-97%. The evolution process of TiC formation during sintering process was studied by using X-ray diffraction (XRD), scanning electron microscopy (SEM), and high resolution transmission electron microscopy (HRTEM). XRD patterns of composites present only Cu and TiC phases, no residual Ti phase can be detected. TEM images of composites with (10 vol % TiC) sintered at 900 • C show TiC nanoparticles about 10-30 nm precipitated in copper matrix, most of Ti and C dissolved in the composite matrix. At the higher sintering temperature of 1000 • C, more TiC precipitates from Cu-TiH2-C than those of Cu-Ti-C composite, particle size ranges from 10 to 20 nm. The hardness of both nanocomposites also increased with increasing sintering temperature. The highest hardness values of Cu-TiH2-C and Cu-Ti-C nanocomposites sintered at 1000 • C are 314 and 306 HV, respectively.

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Section: Introductionmentioning

confidence: 99%

Characterization of In-Situ Cu–TiH2–C and Cu–Ti–C Nanocomposites Produced by Mechanical Milling and Spark Plasma Sintering

Oanh

Việt

Kim

et al. 2017

Metals

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“…The formation of intermetallic phases can be attributed to the high sintering temperature and fast sintering rate in microwave heating. In microwave process the rapid heating rates through skin effect via Eddy currents and suceptor lead to enhance diffusion kinetics as a result of local high temperatures 22 . C point indicates the aluminum matrix.…”

Section: Microstructurementioning

confidence: 99%

Effect of Heating Method on Microstructure and Mechanical Properties of Zircon Reinforced Aluminum Composites

et al. 2016

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The mechanical properties and microstructure of aluminum matrix composites containing of zircon (10, 15 and 20 wt.%) as a reinforcement particles and cobalt additive (1, 1.5 and 2 wt.%) were investigated. The aluminum matrix composites were prepared by powder metallurgy technique and sintered in both conventional and microwave furnaces at temperatures higher than the melting point of aluminum. The results revealed that the density and mechanical strength of aluminum were increased by introducing zircon and cobalt particles. The maximum strength was obtained by adding 10 wt.% zircon sintered in microwave furnace at 950°C. The phase analysis and scanning electron microscopy of sintered composites were examined and found some interesting data about intermetallic compounds.

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“…Spark plasma sintering (SPS) allows the production of sounds components with high strength enhancement if compared to traditional powder metallurgy techniques (Kubota et al ., ,b; Ghasali et al ., ; Ghasali et al ., ,b,c). High heating rates and high temperatures lead to grain boundary diffusion with consequent neck formation, porosity reduction and rapid densification kinetics (Olevsky et al ., ).…”

Section: Introductionmentioning

confidence: 99%

Electron backscattered diffraction analysis of friction stir processed nanocomposites produced via spark plasma sintering

Sadeghi

Cavaliere

Shamanian

et al. 2018

Journal of Microscopy

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In the present study, Spark Plasma Sintered (SPSed) aluminium matrix composites were severely deformed through Friction stir processing (FSP). Pure aluminium powders and bimodal sized Al O particles (80 nm and 25 μm) were firstly mixed by ball milling and then consolidated by spark plasma sintering. The effect of the heat input as well the bimodal particle size of the alumina on the materials' microstructure and texture development was evaluated by electron back scattered diffraction (EBSD) analysis. The EBSD analysis clearly showed that the SPSed nanocomposites possessed bimodal aluminium matrix grain structure as well as a crystallography characterised by random texture. In addition, microstructural examination revealed that the partial recrystallisation occurred during SPS for all the nanocomposites. Also, it is revealed that the Zener pinning effect of Al O nanoparticles retarded recrystallised grain growth following recrystallisation during FSP and then leading to grain refinement of the aluminium. The results revealed that the heat generated during FSP has a remarkable effect on the grain distribution as well as on the crystallographic orientation. Also, a mixture of {112} <110> shear elements and an ideal strong B/B¯ component were observed. The microstructural changes, occurred during FSP in the stir zone region for Al-Al O nanocomposites, were attributed to both the discontinuous along with the continuous recrystallisation (DDRX/CDRX). It should be pointed out that with increasing the heat input, recrystallised grains portion increased.

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Vanadium carbide reinforced aluminum matrix composite prepared by conventional, microwave and spark plasma sintering

Cited by 79 publications

References 32 publications

Characterization of In-Situ Cu–TiH2–C and Cu–Ti–C Nanocomposites Produced by Mechanical Milling and Spark Plasma Sintering

Characterization of In-Situ Cu–TiH2–C and Cu–Ti–C Nanocomposites Produced by Mechanical Milling and Spark Plasma Sintering

Effect of Heating Method on Microstructure and Mechanical Properties of Zircon Reinforced Aluminum Composites

Electron backscattered diffraction analysis of friction stir processed nanocomposites produced via spark plasma sintering

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