A combination of ball milling and high-ratio differential speed rolling for synthesizing carbon nanotube/copper composites

Yoo, S.J.; Han, Seungoh; Kim, Woo Jin

doi:10.1016/j.carbon.2013.04.105

Cited by 118 publications

(50 citation statements)

References 33 publications

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“…This is due to the oxidation of Cu to Cu 2 O. XRD analysis also indicated that there is no carbide formation in the composites. The binary phase diagram of the Cu-C system in Figure 10(c) also shows the absence of any compounds between Cu and C [31]- [33].…”

Section: S N Alam Et Almentioning

confidence: 93%

Development of Cu-Exfoliated Graphite Nanoplatelets (xGnP) Metal Matrix Composite by Powder Metallurgy Route

Alam¹,

Kumar²,

Sharma³

2015

Graphene

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In the present investigation the possibility of using exfoliated graphite nanoplatelets (xGnP) as reinforcement in order to enhance the mechanical properties of Cu-based metal matrix composites is explored. Cu-based metal matrix composites reinforced with different amounts of xGnP were fabricated by powder metallurgy route. The microstructure, sliding wear behaviour and mechanical properties of the Cu-xGnP composites were investigated. xGnP has been synthesized from the graphite intercalation compounds (GIC) through rapid evaporation of the intercalant at an elevated temperature. The thermally exfoliated graphite was later sonicated for a period of 5 h in acetone in order to achieve further exfoliation. The xGnP synthesized was characterized using SEM, HRTEM, X-ray diffraction, Raman spectroscopy and Fourier transform infrared spectroscopy. The Cu and xGnP powder mixtures were consolidated under a load of 565 MPa followed by sintering at 850˚C for 2 h in inert atmosphere. Cu-1, 2, 3 and 5 wt% xGnP composites were developed. Results of the wear test show that there is a significant improvement in the wear resistance of the composites up to addition of 2 wt% of xGnP. Hardness, tensile strength and strain at failure of the various Cu-xGnP composites also show improvement upto the addition of 2 wt% xGnP beyond which there is a decrease in these properties. The density of the composites decreases with the addition of higher wt% of xGnP although addition of higher wt% of xGnP leads to higher sinterability and densification of the composites, resulting in higher relative density values. The nature of fracture in the pure Cu as well as the various Cu-xGnP composites was found to be ductile. Nanoplatelets of graphite were found firmly embedded in the Cu matrix in case of Cu-xGnP composites containing low wt% of xGnP.

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Section: S N Alam Et Almentioning

confidence: 93%

Development of Cu-Exfoliated Graphite Nanoplatelets (xGnP) Metal Matrix Composite by Powder Metallurgy Route

Alam¹,

Kumar²,

Sharma³

2015

Graphene

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show abstract

“…In recent years, there was a significant increase in publications related to CNT reinforced metal matrix composites (MMCs). Considerable research on CNT reinforced metal matrix composites have focused on matrix materials, such as Al [16][17][18][19][20], Cu [21,22], Mg [23][24][25], Fe [26], Ni [27][28][29], and NiTi alloys [30]. However, the property improvement of CNT reinforced metal matrix composites has not reached the level of CNT/polymer composites [31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Rapid and low temperature spark plasma sintering synthesis of novel carbon nanotube reinforced titanium matrix composites

Wang

Zhang

Sun

et al. 2015

Carbon

170

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“…Their results show that the mechanical milling can be used to prepare completely/partially homogeneous Cu/CNT powder for production of high strength bulk composites. In a recent work, Yoo et al [14] have synthesized a high strength Cu CNT nanocomposite by a combination of ball milling and high-ratio dierential speed rolling. In their work, homogeneous dispersion of CNTs in nanostructured copper matrix was obtained by mechanical milling.…”

Section: Introductionmentioning

confidence: 99%

Microstructural Characterization and Consolidation of Severely Deformed Copper Powder Reinforced with Multiwalled Carbon Nanotubes

Akbarpour

Salahi

2015

Acta Phys. Pol. A

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In this paper, the mechanical milling process for various durations was used to generate a homogeneous distribution of 1 wt.% carbon nanotube within Cu powder. Eects of milling time on morphology, microstructure, and microhardness of the powder were studied. The results showed that work hardened Cu-carbon nanotube nanocomposite powder with nanosized grains can be fabricated by the mechanical milling of the elemental materials. The addition of carbon nanotubes accelerated the morphological and microstructural evolution during the mechanical milling and inuenced the compressibility of the powder. The compressibility behavior of the powder was analyzed using analytical models and used to estimate the strength of the powder. The nanocomposite compacts were sintered in vacuum and showed the maximum relative density of ≈91% at optimum condition.

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A combination of ball milling and high-ratio differential speed rolling for synthesizing carbon nanotube/copper composites

Cited by 118 publications

References 33 publications

Development of Cu-Exfoliated Graphite Nanoplatelets (xGnP) Metal Matrix Composite by Powder Metallurgy Route

Development of Cu-Exfoliated Graphite Nanoplatelets (xGnP) Metal Matrix Composite by Powder Metallurgy Route

Rapid and low temperature spark plasma sintering synthesis of novel carbon nanotube reinforced titanium matrix composites

Microstructural Characterization and Consolidation of Severely Deformed Copper Powder Reinforced with Multiwalled Carbon Nanotubes

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