Mechanical Synthesis and Rapid Consolidation of a Nanocrystalline Cu-Al2O3 Composite by High Frequency Induction Heated Sintering

Shon, In-Jin; Lee, Jin-Yeoung; Nam, Kee‐Seok; Moon, Byung-Moon; Lee, Dong-Mok

doi:10.3365/eml.2009.06.077

Cited by 3 publications

(2 citation statements)

References 21 publications

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“…However, the casting method is limited by grain growth, thereby reducing the mechanical properties. 21 , 22 In recent decades, the mechanical properties of Cu–Al 2 O 3 composites have been enhanced by mechanical alloying. This technique can be the best method to achieve homogenous distribution of the second phase in a matrix.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterisation of copper–alumina nanocomposites prepared by high-energy fast milling

Salahi

Rajabi

2016

Materials Science and Technology

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Two different methods are used to prepare Cu–20 vol-% Al2O3 nanocomposite powders via high-energy planetary fast milling. In the solid solution method, CuO powder was added to the Cu–Al solid solution powder, and the composite was fabricated by milling after 100 h. In the direct mixing method, Cu and Al2O3 powders were mechanically milled via high-energy planetary fast milling for 100 h. The transition electron micrographs (dark and white fields) revealed the presence of Al2O3 nanoparticles in crystalline Cu matrices for both methods. However, the density and bending strength of the nanocomposites produced via the solid solution method were higher than those of the samples produced via the direct mixing method.

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Section: Introductionmentioning

confidence: 99%

Fabrication and characterisation of copper–alumina nanocomposites prepared by high-energy fast milling

Salahi

Rajabi

2016

Materials Science and Technology

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“…The unique features of MMCs are high strength to weight ratio, high stiffness per unit density as a result of which the service performance increases. The decrease in structural weight, increase in creep strength, high fatigue strength, high thermal stability, enhancement in wear resistance and electrical conductivity, (Suresh et al 1993;Shon et al 2009) further make it a potent engineering material.…”

Section: Introductionmentioning

confidence: 99%

Processing and properties of Cu based micro- and nano-composites

2014

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Nano-composites of 1, 3, 5 and 7 vol% Al 2 O 3 (average size <50 nm) and microcomposites having compositions 5, 10, 15, 20 vol% of Al 2 O 3 (average size ∼10 µm) reinforced in copper matrix were fabricated by powder metallurgy route. All the specimens were sintered at different sintering temperatures (850, 900 and 1000 • C) to study the effect of temperature on the process and progress of sinterability of the reinforced micro-and nanoparticles in the matrix. These micro-and nano-composites were characterized using X-ray diffraction and scanning electron microscopy followed by density, microhardness and wear measurements. The compression and flexural tests were also carried out in order to investigate the mechanical behaviour of the micro-and nano-composites for a fixed optimum sintering temperature. Fractography of the 3-point bend specimens was performed to investigate the fracture behaviour of the micro-and nano-composites. The flexural test results showed that the ultimate flexural strength decreases and flexural modulus increases with the increase in reinforcement content. Keywords. Cu-Al 2 O 3 ; nano-composite; sintering; 3-point bend test.

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Investigation of sulfide precipitates on microstructure and properties of Fe–Al2O3 composites fabricated by carbothermal reduction of iron concentrate

Chen

Shi

et al. 2019

Journal of Alloys and Compounds

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Mechanical Synthesis and Rapid Consolidation of a Nanocrystalline Cu-Al2O3 Composite by High Frequency Induction Heated Sintering

Cited by 3 publications

References 21 publications

Fabrication and characterisation of copper–alumina nanocomposites prepared by high-energy fast milling

Fabrication and characterisation of copper–alumina nanocomposites prepared by high-energy fast milling

Processing and properties of Cu based micro- and nano-composites

Investigation of sulfide precipitates on microstructure and properties of Fe–Al2O3 composites fabricated by carbothermal reduction of iron concentrate

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