Low Temperature Sintering of Aluminum-Zircon Metal Matrix Composite Prepared by Spark Plasma Sintering

Ghasali, Ehsan; Nouranian, H; Rahbari, Ali; Majidian, Hudsa; Alizadeh, Mohammad; Ebadzadeh, Touradj

doi:10.1590/1980-5373-mr-2016-0395

Cited by 37 publications

(12 citation statements)

References 16 publications

(13 reference statements)

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“…5,6 There are numerous preparation methods to produce AMCs discussed by many investigators and can be categorized into two different fields including solid and liquid state processing. 7,8 These methods such as powder metallurgy (PM), casting routs, etc. have an important role in the final properties of these types of composites.…”

Section: Introductionmentioning

confidence: 99%

TiO₂ ceramic particles-reinforced aluminum matrix composite prepared by conventional, microwave, and spark plasma sintering

Ghasali

Alizadeh

Ebadzadeh

2017

Journal of Composite Materials

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Aluminum-10 wt% TiO2 metal matrix composites were fabricated with conventional, microwave, and spark plasma sintering processes. Aluminum and nano-sized TiO2 powders were mixed using a high-energy mixer, and the sintering process was done at 450℃ by spark plasma sintering and 600℃ under both microwave and conventional heating. The results showed microwave sintering led to form Al3Ti intermetallic compounds with flaky shape, while in the conventional heating at the same sintering temperature, Al3Ti was formed and confirmed by X-ray diffraction and scanning electron microscope investigations. Moreover, the nano-sized TiO2 particles as reinforcement with no additional phase were obtained by spark plasma sintering at the lowest sintering temperature. The maximum bending strength of 254 ± 12 MPa and Vickers hardness of 235 ± 13 were measured for samples sintered in microwave as a consequence of Al3Ti formation. The SEM and energy-dispersive X-ray spectroscopy analyses showed uniform distribution of Al3Ti particles in the microstructure of microwave sintered samples and nonuniform distribution of agglomerated Al3Ti particles and porosities in samples sintered by spark plasma sintering and conventional heating.

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Section: Introductionmentioning

confidence: 99%

TiO₂ ceramic particles-reinforced aluminum matrix composite prepared by conventional, microwave, and spark plasma sintering

Ghasali

Alizadeh

Ebadzadeh

2017

Journal of Composite Materials

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“…Definitely, the sintering process is one of the most important stages in the preparation of products via powder metallurgy method. Regarding this fact, the sintering temperature acts as an effective parameter in pressureless sintering techniques [1, 2, 3]. It is worth mentioning that the variables of thermal regime in sintering process affect the final properties of the products.…”

Section: Introductionmentioning

confidence: 99%

Investigation on in-situ formed Al3V-Al-VC nano composite through conventional, microwave and spark plasma sintering

Ghasali

Orooji

Germi

2019

Heliyon

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In the present study, the effect of heating methods has been studied on the microstructure and mechanical properties of in-situ formed Al 3 V-Al-VC nano-composite. 5 and 15 wt % of VC were added to Al matrix and conventional and microwave sintering processes were performed at 600 °C. While spark plasma sintering process was done at 450 °C with initial and final pressure of 10 and 30 MPa, respectively. The XRD results revealed the formation of Al 3 V intermetallic compound in microwave sintered sample, while in both spark plasma sintered and conventionally prepared specimens, the only crystalline phases were Al and VC. Microstructure studies, demonstrated a uniform distribution of 5wt% VC reinforcement in Al matrix but the 15wt%VC addition led to form agglomerates in all prepared samples. The highest bending strength (275 ± 13 MPa) and hardness (260 ± 13 Vickers) were obtained in the spark plasma sintered sample with 15wt% of VC content.

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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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Low Temperature Sintering of Aluminum-Zircon Metal Matrix Composite Prepared by Spark Plasma Sintering

Cited by 37 publications

References 16 publications

TiO₂ ceramic particles-reinforced aluminum matrix composite prepared by conventional, microwave, and spark plasma sintering

TiO₂ ceramic particles-reinforced aluminum matrix composite prepared by conventional, microwave, and spark plasma sintering

Investigation on in-situ formed Al3V-Al-VC nano composite through conventional, microwave and spark plasma sintering

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

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Low Temperature Sintering of Aluminum-Zircon Metal Matrix Composite Prepared by Spark Plasma Sintering

Cited by 37 publications

References 16 publications

TiO2 ceramic particles-reinforced aluminum matrix composite prepared by conventional, microwave, and spark plasma sintering

TiO2 ceramic particles-reinforced aluminum matrix composite prepared by conventional, microwave, and spark plasma sintering

Investigation on in-situ formed Al3V-Al-VC nano composite through conventional, microwave and spark plasma sintering

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

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TiO₂ ceramic particles-reinforced aluminum matrix composite prepared by conventional, microwave, and spark plasma sintering

TiO₂ ceramic particles-reinforced aluminum matrix composite prepared by conventional, microwave, and spark plasma sintering