Properties of Al–Al2O3 composites synthesized by spark plasma sintering method

Garbiec, Dariusz; Jurczyk, M.; Levintant-Zayonts, N.; Mościcki, Tomasz

doi:10.1016/j.acme.2015.02.004

Cited by 59 publications

(33 citation statements)

References 21 publications

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“…It means that no contaminations were detected above the EDS detection limit. 19 explained that in WC-Co cemented carbides pores tend to decrease in size with an increasing compaction pressure. They applied a compaction pressure ranging between 30 and 80 MPa and obtained a reduction in porosity from 3.12 to 2.12%.…”

Section: Methodsmentioning

confidence: 99%

“…On the other hand, the same mixing process was used for preparing the WC-5Co-2Cr 3 C 2 and WC-5Co-2TaC powder mixtures 15 and no carbide agglomerates were present in the microstructures. Anyway, one of keys to preventing the agglomeration phenomenon might be to use ultrasound in the process of mixing the suspension consisting of the initial powders and liquid as in work 19 , where aluminum and alumina powders were ultrasound mixed using anhydrous methanol. The specimens with 1.0 wt% Cr 3 C 2 and TaC show an obviously finer microstructure than those in the specimens with the 0.6 wt% of these additives, even in the WC-6Co-1TaC specimen microstructural defects are also present.…”

Section: Methodsmentioning

confidence: 99%

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The Effect of Cr3C2 and TaC Additives on Microstructure, Hardness and Fracture Toughness of WC-6Co Tool Material Fabricated by Spark Plasma Sintering

2017

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Spark plasma sintering has been used to successfully produce WC-6Co-xCr 3 C 2 , WC-6Co-xTaC (x = 0.2, 0.6, 1.0) and WC-6Co-xCr 3 C 2 -xTaC (x = 0.1, 0.3, 0.5) cemented carbides. The spark plasma sintered compacts were investigated by scanning electron microscopy, hardness tests and fracture toughness tests. The results were compared to an additives-free WC-6Co cemented carbide consolidated under the same process parameters and commercial ISO K10 inserts. By using Cr 3 C 2 and TaC additives, it is possible to improve the hardness and fracture toughness of WC-Co cemented carbides. The best combination of hardness (1936 ± 15 HV 30 ) and fracture toughness (10.38 ± 0.46 MPa•m 1/2 ) was obtained by the WC-6Co-1Cr 3 C 2 .

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

The Effect of Cr3C2 and TaC Additives on Microstructure, Hardness and Fracture Toughness of WC-6Co Tool Material Fabricated by Spark Plasma Sintering

2017

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“…The process starts with mixing or mechanical alloying of aluminum (or aluminum alloy) powder with ceramic particles followed by compaction and hot pressing, sintering or hot extrusion. Addition of ceramics particles has a positive influence on grain refinement during the milling process and increases the hardness of sintered samples [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study Of Aluminum Alloy Matrix Composite Reinforced SiC Made By Hot Pressing Method

Suśniak¹,

Karwan-Baczewska²,

Grande³

et al. 2015

Archives of Metallurgy and Materials

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The present work investigates the possibility of using powder metallurgy processing for producing a metal matrix composite. Materials were prepared from AlSi5Cu2 chips with reinforcement of 10, 15, 20 wt. % silicon carbide. Aluminum alloy chips were milled with SiC powder in a high-energy ball mill by 40 hours. Mechanical alloying process lead to obtain an uniform distribution of hard SiC particles in the metallic matrix and refine the grain size. The consolidation of composite powders was performed by vacuum hot pressing at 450 • C, under pressure of 600 MPa by 10 min. The results shows that the addition of SiC particles has a substantial influence on the microstructure and mechanical properties of composite powder as well as consolidated material. Hot pressing is an effective consolidation method which leads to obtain dense AlSi5Cu2/SiC composite with homogeneous structure and advanced mechanical properties.

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“…Metal-matrix composites (MMCs) were already known in the late 1950s and early 1960s, which then have been called the materials of the future [1]. MMCs have applications in the energy technology, automotive industry, defense, space and various other industries because of their impressive strength, fracture toughness, low density, high stiffness, high thermal conductivity, thermal shock resistance, improved strength, and high wear resistance at room temperature [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…MMCs have applications in the energy technology, automotive industry, defense, space and various other industries because of their impressive strength, fracture toughness, low density, high stiffness, high thermal conductivity, thermal shock resistance, improved strength, and high wear resistance at room temperature [1][2][3]. Among all ceramic reinforced metal composites, the Al-Al 2 O 3 pair has came forward because of its superior properties and has been one of the most intensively studied systems [3,4].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Functional Graded Al2124 Composite Reinforced with Al₂O₃ Particles

2017

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The composite materials formed by powder metallurgy are mostly used in industry due to their excellent properties such as low density, high strength, and hardness. The aim of this study is to produce functional graded Al material reinforced with macro-sized Al2O3. To fabricate the aluminum matrix composite, commercial Al 2124 aluminum alloy powder (from Gürel Makina), which is used in aerospace and defense industries, was chosen as a matrix material. Powder metallurgy was used to produce the functional graded material because it allows an easy incorporation of reinforcement phase into the matrix. The sintered samples were characterized using optical microscopy, SEM, and X-Ray diffraction analysis. The results show that functional graded material structure and the transition interlayers were achieved by the presented process.

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Properties of Al–Al2O3 composites synthesized by spark plasma sintering method

Cited by 59 publications

References 21 publications

The Effect of Cr3C2 and TaC Additives on Microstructure, Hardness and Fracture Toughness of WC-6Co Tool Material Fabricated by Spark Plasma Sintering

The Effect of Cr3C2 and TaC Additives on Microstructure, Hardness and Fracture Toughness of WC-6Co Tool Material Fabricated by Spark Plasma Sintering

An Experimental Study Of Aluminum Alloy Matrix Composite Reinforced SiC Made By Hot Pressing Method

Fabrication of Functional Graded Al2124 Composite Reinforced with Al₂O₃ Particles

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Properties of Al–Al2O3 composites synthesized by spark plasma sintering method

Cited by 59 publications

References 21 publications

The Effect of Cr3C2 and TaC Additives on Microstructure, Hardness and Fracture Toughness of WC-6Co Tool Material Fabricated by Spark Plasma Sintering

The Effect of Cr3C2 and TaC Additives on Microstructure, Hardness and Fracture Toughness of WC-6Co Tool Material Fabricated by Spark Plasma Sintering

An Experimental Study Of Aluminum Alloy Matrix Composite Reinforced SiC Made By Hot Pressing Method

Fabrication of Functional Graded Al2124 Composite Reinforced with Al2O3 Particles

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Fabrication of Functional Graded Al2124 Composite Reinforced with Al₂O₃ Particles