Synthesis of nanocomposites by mechanical alloying

Suryanarayana, C.

doi:10.1016/j.jallcom.2010.09.063

Cited by 142 publications

(50 citation statements)

References 30 publications

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“…MMCs have excellent properties, such as high fatigue strength, high specific modulus, stability at elevated temperatures, lower coefficient of thermal expansion, high specific strength, and better wear resistance [3,4]. Metal Matrix Nanocomposites (MMNCs), where at least one of the constituent phases has a dimension less than 100 nm, have been developed and their properties were evaluated and found to be better than the properties of metal matrix composites [5][6][7][8][9]. However, there are several challenges associated with the development of MMNCs.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Properties of Spark Plasma Sintered Aluminum Containing 1 wt.% SiC Nanoparticles

Aliyu

Saheb²,

Hassan³

et al. 2015

Metals

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Abstract:The low hardness and strength of aluminum, which limits its use in many industrial applications, could be increased through the addition of nanoparticles. However, the appropriate processing method and parameters should be carefully selected in order to achieve the desired improvement in properties. In this work, aluminum was reinforced with low weight fraction (1 wt.%) of SiC nanoparticles and consolidated through spark plasma sintering. The effect of processing parameters on the densification, microstructure, and properties of the processed material was investigated. Field Emission Scanning Electron Microscope (FE-SEM) equipped with Energy Dispersive X-ray Spectroscopy (EDS) facility was used to characterize the microstructure and analyze the reinforcement's distribution in sintered samples. Phases present were characterized through X-ray diffraction (XRD). A densimeter and a digital microhardness tester were used to measure the density and hardness, respectively. Compressive tests were performed using universal testing machine. A fully dense Al-1 wt.% SiC sample was obtained. Analysis of density and hardness values showed that the influence of applied pressure was more pronounced than heating rate while the influence of sintering temperature was more significant than sintering time. Within the range of parameters used, the highest values of the characterized properties were obtained at a sintering temperature of 600 °C, sintering time of 10 min, pressure of 50 MPa, and heating rate of 200 °C/min. OPEN ACCESSMetals 2015, 5 71

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Section: Introductionmentioning

confidence: 99%

Microstructure and Properties of Spark Plasma Sintered Aluminum Containing 1 wt.% SiC Nanoparticles

Aliyu

Saheb²,

Hassan³

et al. 2015

Metals

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show abstract

“…However, the method of producing and amount of components are vital challenges of researchers in this field. In recent years, nanocomposite materials (when the reinforcement is of nanometer dimensions, typically <100 nm in size) have received the serious attention of researchers in view of their much better properties than those of either the monolithic material or the composite containing a coarse-grained reinforcement phase [1]. Aluminum alloys have reasonable strength and ductility with suitable workability.…”

Section: Introductionmentioning

confidence: 99%

Structural and morphological evaluation of Al–5vol.%SiC nanocomposite powder produced by mechanical milling

Khadem

Nategh

Yoozbashizadeh

2011

Journal of Alloys and Compounds

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“…It is possible, however, to perform a high energy mixing through milling media, so as to eliminate the voids between the matrix and the reinforcement powders through a solid state bonding (Ye et al 2005). For example, in mechanical alloying (MA), matrix and reinforcement are alloyed together by inducing cold welding, fracturing, and rewelding of the powder particles (Suryanarayana 2001(Suryanarayana , 2011Suryanarayana and Al-Aqeeli 2013). The strengthening of metallic alloys is achieved through grain size refinement and dispersion of particles.…”

Section: Mechanical Alloyingmentioning

confidence: 99%

“…Methanol, stearic acid, and paraffin compounds are used for this purpose (Witkin and Lavernia 2006). During continuous severe plastic deformation, refinement of the internal structure of the powders to the fine scales may occur, resulting in the production of nanostructured powders (Fecht 1995;Suryanarayana 2011). In the entire process, contamination of the powders must be carefully controlled.…”

Section: Mechanical Alloyingmentioning

confidence: 99%

Light Metal Matrix Composites

Jayalakshmi¹,

Gupta

2015

SpringerBriefs in Materials

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Fundamentals of metal matrix composites are overviewed. The various light metal matrix systems (particularly Al and Mg) and the different types of reinforcements used are mentioned. The various composite production methods are described. Strengthening mechanisms that define the enhancement in properties of composites are discussed. The microstructural and mechanical properties of the composites are summarized. In addition, the several disadvantages encountered in MMCs due to ceramic reinforcement addition are understood from interfacial characteristic/properties. Keywords

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Synthesis of nanocomposites by mechanical alloying

Cited by 142 publications

References 30 publications

Microstructure and Properties of Spark Plasma Sintered Aluminum Containing 1 wt.% SiC Nanoparticles

Microstructure and Properties of Spark Plasma Sintered Aluminum Containing 1 wt.% SiC Nanoparticles

Structural and morphological evaluation of Al–5vol.%SiC nanocomposite powder produced by mechanical milling

Light Metal Matrix Composites

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