Processing of Al2O3/SiC ceramic cake preforms and their liquid Al metal infiltration

Altınkök, Necat; Demir, Adem; Özsert, İbrahim

doi:10.1016/s1359-835x(03)00125-8

Cited by 28 publications

(13 citation statements)

References 13 publications

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“…This ceramic foam was milled to adjust particle size before stir casting. This hybrid ceramic powder with dierent SiC particle size range was added into liquid matrix alloy by the stir casting process, a 10 vol.% of hybrid ceramic particle reinforcement of these two dierent powder mix ceramic cake was successfully produced by the stir casting process using AlSiMg alloys [30]. It is possible to control pore size by changing the amount of alumina in the cake.…”

Section: Procedures Of Experimentsmentioning

confidence: 99%

Dry Sliding Wear Behavior of Al₂O₃/SiC Particle Reinforced Aluminium Based MMCs Fabricated by Stir Casting Method

2013

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Al2O3/SiC particulate reinforced metal matrix composites were produced by a stir casting process. The Al2O3/SiC powder mix was prepared by reaction of aqueous solution of aluminium sulphate, ammonium sulphate and water containing SiC particles at 1200• C. 10 wt% of this hybrid ceramic powder with dierent sized SiC particles was added to a liquid matrix alloy during a mechanical stirring between solidus and liquidus under inert conditions. Dry sliding wear tests were conducted with a pin-on-disk friction and wear tester. The morphologies of the worn surfaces were examined using a scanning electron microscope to observe the wear characteristics and investigate the wear mechanism. An optical microscope was used to examine the precipitations of the hybrid ceramic reinforced metal matrix composites after wear tests at room temperature under dry conditions. It was found that hybrid and bimodal particle reinforcement decreased weight loss especially when SiC powder with larger grain size was used. Microstructural examination showed that besides occurring coarse SiC particle reinforcement, a ne alumina particle reinforcement phase was observed within the aluminium matrix (A332). The improvement in wear resistance of the hybrid ceramic reinforced metal matrix composites could be attributed to the ability of the larger SiC particles to carry a greater portion of the applied load, as well as to the function of the larger SiC particles in protecting the smaller alumina particles from being gouged out during the wear process. Furthermore, the incorporation of hybrid and bimodal particles increased hardness of the composites with respect to the composite with fully small sized particles.

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Section: Procedures Of Experimentsmentioning

confidence: 99%

Dry Sliding Wear Behavior of Al₂O₃/SiC Particle Reinforced Aluminium Based MMCs Fabricated by Stir Casting Method

2013

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“…Composite Part A 2003;34:577-8. [1]]. Density and tensile strengths of dual ceramic reinforced aluminium matrix composites have been investigated at room temperature.…”

mentioning

confidence: 99%

Modelling of the prediction of tensile and density properties in particle reinforced metal matrix composites by using neural networks

Altınkök

Köker

2006

Materials & Design

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“…An infiltration apparatus which was designed in previous study [15] was to melt and infiltrate aluminium alloys into the preform. The resulting preforms were cut and placed into the infiltration chamber, which was located in the lower section of the device.…”

Section: Methodsmentioning

confidence: 99%

“…1(a). Detailed reactions of the preform preparation were explained elsewhere [15]. X-ray analysis showed that corundum a-alumina was obtained after decomposition of aluminium sulphate.…”

Section: Microstructures and Properties Of Compositesmentioning

confidence: 99%

Effect of gas pressure infiltration on microstructure and bending strength of porous Al2O3/SiC-reinforced aluminium matrix composites

Demir¹,

Altınkök²

2004

Composites Science and Technology

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Processing of Al2O3/SiC ceramic cake preforms and their liquid Al metal infiltration

Cited by 28 publications

References 13 publications

Dry Sliding Wear Behavior of Al₂O₃/SiC Particle Reinforced Aluminium Based MMCs Fabricated by Stir Casting Method

Dry Sliding Wear Behavior of Al₂O₃/SiC Particle Reinforced Aluminium Based MMCs Fabricated by Stir Casting Method

Modelling of the prediction of tensile and density properties in particle reinforced metal matrix composites by using neural networks

Effect of gas pressure infiltration on microstructure and bending strength of porous Al2O3/SiC-reinforced aluminium matrix composites

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Processing of Al2O3/SiC ceramic cake preforms and their liquid Al metal infiltration

Cited by 28 publications

References 13 publications

Dry Sliding Wear Behavior of Al2O3/SiC Particle Reinforced Aluminium Based MMCs Fabricated by Stir Casting Method

Dry Sliding Wear Behavior of Al2O3/SiC Particle Reinforced Aluminium Based MMCs Fabricated by Stir Casting Method

Modelling of the prediction of tensile and density properties in particle reinforced metal matrix composites by using neural networks

Effect of gas pressure infiltration on microstructure and bending strength of porous Al2O3/SiC-reinforced aluminium matrix composites

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About

Dry Sliding Wear Behavior of Al₂O₃/SiC Particle Reinforced Aluminium Based MMCs Fabricated by Stir Casting Method

Dry Sliding Wear Behavior of Al₂O₃/SiC Particle Reinforced Aluminium Based MMCs Fabricated by Stir Casting Method