Development of Mg/Cu nanocomposites using microwave assisted rapid sintering

Wong, Eugene Y.; Gupta, Manoj

doi:10.1016/j.compscitech.2006.07.015

Cited by 194 publications

(116 citation statements)

References 22 publications

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“…Several attempts have been made to investigate the effects of different types and sizes of reinforcements on the mechanical, the tribological and the microstructural behaviour of pure magnesium. Initially, micron-size reinforcements in the form of carbides (SiC, B 4 C, ZrC, TiC), borides (ZrB 2 , TiB 2 ), nitrides (TiN, ZrN, BN, AlN), and metals (Mo, Cu, Ti, Ni) were added to pure magnesium; subsequently, the observed effects were investigated [19][20][21][22][23]. In the available literature, one cannot find reports on attempts to study the effects of primary processing techniques, such as argon-controlled stir casting technique (liquid-phase synthesis) and powder metallurgy (PM) technique (solid-phase synthesis), on the microstructure and tribological properties of TiO 2 -reinforced magnesium composites.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Tribological Behaviour of Mg-TiO2 Composites

Pillai¹,

Jinu²,

Govindan³

2018

TFAMENA

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SummaryIn the present study pure magnesium was taken as a base metal which is reinforced with various weight percentages of TiO 2 (2.5, 5, 7.5, 10 % wt). This is done through a vacuum stir casting route with argon as a shielding gas to prevent oxidation. The prepared samples were machined using the Electric Discharge Machining (EDM) to achieve accurate dimensions for the study of tribological properties. A computerized pin-on-disc machine is used to study the dry sliding wear behaviour of the Mg-based composites. Wear losses were calculated using a variety of load parameters (10N, 15N, 20N, and 25N), sliding velocities (1 m/s, 1.5 m/s, and 2.0 m/s) and the weight percentage of the reinforcement. The results proved that the wear loss increased with an increase in the load, and decreased with an increase in the sliding velocity. The wear resistance is improved with an increase in the percentage of reinforcements in the matrix. The morphology and distribution of reinforcements were analysed by means of Scanning Electron Microscopy (SEM) and Energy-Dispersive X-ray (EDX) spectroscopy, respectively. The results revealed a uniform distribution of TiO 2 particles throughout the magnesium matrix in the Mg-TiO 2 composites.

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Section: Introductionmentioning

confidence: 99%

Fabrication and Tribological Behaviour of Mg-TiO2 Composites

Pillai¹,

Jinu²,

Govindan³

2018

TFAMENA

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“…The density and porosity of microwave-sintered magnesium is in close comparison with conventionally sintered magnesium in spite of the significant reduction in sintering time as shown in Table 3 [12,[18][19][20][21][22][23][24][25][26]. The results of porosity measurements amongst the pure magnesium samples indicate that higher heating rate leads to an improvement in the densification of magnesium.…”

Section: Physical Propertiesmentioning

confidence: 72%

Using Microwave Energy to Synthesize Light Weight/Energy Saving Magnesium Based Materials: A Review

Wong

Gupta

2015

Technologies

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Microwave energy can be used for the processing of a wide variety of materials. It is used most commonly for the heating of food and has been increasingly applied for processing of polymers; ceramics; metals; minerals and composites. The use of microwave energy allows rapid and volumetric heating where heat is generated from within the material instead of via radiative heat transfer from external heating elements. This paper aims to provide a review on the use of energy efficient and environment friendly microwave energy route to synthesize magnesium based materials reinforced with various types of metallic and ceramic reinforcements. Magnesium composites are extremely attractive for weight critical applications in automotive; aerospace; electronics and transportation sectors. The magnesium composites were prepared using blend-compact-microwave sintering-extrusion methodology. Microwave sintering allowed a significant reduction of 80% in both processing time and energy consumption over conventional sintering without any detrimental effect on the properties of the synthesized magnesium composites. Physical; microstructure and mechanical properties of microwave sintered magnesium composites will also be discussed and compared with magnesium composites processed by conventional liquid and solid processing techniques. OPEN ACCESSTechnologies 2015, 3 2

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“…Therefore, the value of Q is taken as average of the values obtained at different strains. The apparent activation energy for C sf /AZ91D composites in the hot compression is equal to 205.13 1 …”

Section:  mentioning

confidence: 99%

“…Discontinuous reinforced magnesium matrix composite is an excellent candidate for high-performance and lightweight structural materials, owing to their high specific strength, high dimensional stability, good damping capacity and isotropic properties [1,2] .…”

Section: Introductionmentioning

confidence: 99%

Constitutive equation for the hot deformation behavior of Csf/AZ91D composites and its validity for numerical simulation

Wang

Gui

et al. 2016

Mechanics of Materials

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Highlights The flow stress depends largely on strain besides on temperature and strain rate.  The model can formulate the flow stress-strain behaviors accurately.  The FEM results based on the model agree well with the experimental ones.  The model is valid for FE analysis on the current hot forming of the composites. The results confirmed that the established constitutive equation can accurately describe the hot plastic deformation behavior of C sf /AZ91D composites, and can be used for the finite element analysis on the hot forming process.

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Development of Mg/Cu nanocomposites using microwave assisted rapid sintering

Cited by 194 publications

References 22 publications

Fabrication and Tribological Behaviour of Mg-TiO2 Composites

Fabrication and Tribological Behaviour of Mg-TiO2 Composites

Using Microwave Energy to Synthesize Light Weight/Energy Saving Magnesium Based Materials: A Review

Constitutive equation for the hot deformation behavior of Csf/AZ91D composites and its validity for numerical simulation

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