The effect of particle size, sintering temperature and sintering time on the properties of Al–Al2O3 composites, made by powder metallurgy

Rahimian, Mehdi; Ehsani, N.; Parvin, Nader; Baharvandi, Hamid Reza

doi:10.1016/j.jmatprotec.2009.04.007

Cited by 381 publications

(195 citation statements)

References 14 publications

(20 reference statements)

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“…The width of Cu peaks change with increasing sintering temperature from 900 to 1050°C. It is suggested that increasing sintering temperature has contributed towards stress releasing as well as grain growth of particles under sintering which is in accordance with the Hall-Petch principle [15]. Fig.…”

Section: Materials and Proceduressupporting

confidence: 68%

Effect of Sintering Parameters on Microstructure and Properties of Mechanically Alloyed Copper-Tungsten Carbide Composite

Yusoff¹,

Hussain²

2013

IJMMM

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Abstract-In this study, copper-tungsten carbide composite was produced by mechanical alloying and powder metallurgy. The effect sintering temperature and time (800°C to 1000°C and 1 to 3 h) on composite microstructure and properties were investigated. The results showed that WC is formed at lower temperature and the presence of WC favoured the enhancement of the properties of the composite. The increased both hardness and electrical conductivity has been observed with the increase sintering temperature. Index Terms-Copper-basedcomposite, mechanical alloying, sintering.

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Section: Materials and Proceduressupporting

confidence: 68%

Effect of Sintering Parameters on Microstructure and Properties of Mechanically Alloyed Copper-Tungsten Carbide Composite

Yusoff¹,

Hussain²

2013

IJMMM

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“…Basically, this increment is attributed to the increased surface area between the matrix and Al 2 O 3 . Several studies have demonstrated this phenomenon and revealed that a greater interfacial area between the matrix and reinforcement leads to strengthening of the matrix [6]. Fig.…”

Section: Microhardness Of Compositesmentioning

confidence: 92%

Characteristics Bronze/Al₂O₃(Ni) Reinforcement Metal Matrix Composite Produced by Current Activated Sintering

et al. 2013

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In this study, a bronze matrix (90 wt% Cu + 10 wt% Sn) was reinforced with Al2O3 particles using mechanical alloying and then produced by a subsequent rapid current sintering technique. The mechanically ball milled bronze powders were reinforced with electroless Ni coated 20 vol.% Al2O3 particles with three dierent particle sizes of 90, 70, and 50 µm. Microhardness testing, and scanning electron microscopy were used for the structural characterization of the composites. The tribological behavior of the resultant composites was tested by the ball--on-disk method at 1.0 N applied load with 0.3 m/s sliding speed for determination the wear loss and friction coecient features against a counterface steel ball.

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“…The advantage of the composites with respect to their substrates reflects in the improvement of the mechanical properties primarily in the increase of the specific elastic modulus, increased hardness, improved wear properties, as well as the resistance to corrosion [3]. Various processing methods have emerged for the synthesis of AMCs, which include stir casting [4], squeeze casting [5], Rheo-casting (compo-casting) [6], spray deposition [7], powder metallurgy (P/M) [8], mechanical alloying [9] etc. Each of these methods has its own advantages and limitations.…”

Section: Introductionmentioning

confidence: 99%

Erosive wear response of SiCp reinforced aluminium based metal matrix composite: Effects of test environments

Khan¹,

Dixit²

2017

J. MECH. ENG. SCI.

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In the present investigation, the erosive wear behaviour of a 10 wt.% SiC particles reinforced aluminium based metal matrix composite has been studied. The composite was fabricated by dispersing SiC particles of size 50-100 µm into the matrix alloy. The resulting material cast was characterised in terms of microstructure, hardness and erosive wear behaviour. The wear response was examined by the sample rotation technique using the slurry pot erosion tester. The effects of speed, sand content and slurry environment on the slurry wear behaviour have been studied. It was observed from the microstructural studies that the interfacial bonding strength between the aluminium matrix and the SiC particles was good and the particles were distributed uniformly. Moreover, in basic medium matrix alloy exhibited a minimum wear rate compared to the composite whereas in the case of an acidic and saline medium, an improved wear resistance was obtained in the case of the composite. The rate of material loss is found to be higher with the increased sand concentration due to the increased impinging action of the sand particles. Also, the rotational speed has a mixed effect on the wear rate. It can be concluded that the material loss was caused by the synergistic effect of corrosive, erosive and abrasive actions of the slurry medium although in the acidic medium, erosion was the dominant mode of material removal whereas corrosion was dominant in the case of a basic medium.

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The effect of particle size, sintering temperature and sintering time on the properties of Al–Al2O3 composites, made by powder metallurgy

Cited by 381 publications

References 14 publications

Effect of Sintering Parameters on Microstructure and Properties of Mechanically Alloyed Copper-Tungsten Carbide Composite

Effect of Sintering Parameters on Microstructure and Properties of Mechanically Alloyed Copper-Tungsten Carbide Composite

Characteristics Bronze/Al₂O₃(Ni) Reinforcement Metal Matrix Composite Produced by Current Activated Sintering

Erosive wear response of SiCp reinforced aluminium based metal matrix composite: Effects of test environments

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The effect of particle size, sintering temperature and sintering time on the properties of Al–Al2O3 composites, made by powder metallurgy

Cited by 381 publications

References 14 publications

Effect of Sintering Parameters on Microstructure and Properties of Mechanically Alloyed Copper-Tungsten Carbide Composite

Effect of Sintering Parameters on Microstructure and Properties of Mechanically Alloyed Copper-Tungsten Carbide Composite

Characteristics Bronze/Al2O3(Ni) Reinforcement Metal Matrix Composite Produced by Current Activated Sintering

Erosive wear response of SiCp reinforced aluminium based metal matrix composite: Effects of test environments

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Characteristics Bronze/Al₂O₃(Ni) Reinforcement Metal Matrix Composite Produced by Current Activated Sintering