Synergistic strengthening by load transfer mechanism and grain refinement of CNT/Al–Cu composites

Nam, Dong Hoon; Seung, I.; Lim, Byung Kyu; Park, Hoon M.; Han, Do Suck; Hong, Soon Hyung

doi:10.1016/j.carbon.2012.01.058

Cited by 254 publications

(63 citation statements)

References 23 publications

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“…We believe that the increase in micohardness for the MWCNTs/Ti composites could be attributed to the fine microstructure of the metal matrix and the addition of nanosize MWCNTs to the Ti matrix. The matrix microstructure refinement[65], texture strengthening[66] by the pinning effect of the MWCNTs, dispersion strengthening by the MWCNTs[67], solution strengthening by carbon atoms[68], load transfer effects induced by MWCNTs[69], and increase of the dislocation density due to the strain generated by thermal expansion mismatch between the matrix and the reinforcements or by plastic working are the possible strengthening mechanisms. The difference between the Vickers microhardness and nanoindentation hardness of the composites should result from the indentation size effect[70,71].…”

mentioning

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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mentioning

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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“…B-EDS spectrum collected from one of the bright particle in 4A. groups 8,13,14,20,23,24 . The origin of the strong band observed at 3150 cm -1 is unclear.…”

Section: Two Steps Ag Decoratingmentioning

confidence: 99%

“…It can be also performed to improve the dispersion of CNT in metal matrix composites (CNT-MMC), creating repulsive charges that diminish their tendency to agglomerate 15,23 . Another very promising benefit of metallic decoration of CNT that hasn't been explored is the improvement of the contact (adhesion) at the interface with the metallic matrix in CNT-MMC.…”

Section: Introductionmentioning

confidence: 99%

Ag ion decoration for surface modifications of multi-walled carbon nanotubes

et al. 2014

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The production of high performance metal matrix composites depends on a proper design of the surface of the reinforcing phase, ensuring a good contact with a metal phase. In the present work, two Ag decorating procedures to modify the surface of multi-walled carbon nanotubes (MWCNT) were evaluated for further production of aluminum matrix composites. The procedures consisted in a two steps route based on acid oxidation of carbon nanotubes (CNT) followed by suspension in an Ag ion solution; and a single step route, based on the effect of n-dimethylformamide (DMF) as an activation agent of CNT surface, in presence of Ag ions. Transmission and scanning-transmission electron microscopy, Raman and Fourier-transformed infrared spectroscopy were employed in order to characterize the results. The two steps route resulted in Ag nano-particles homogeneously deposited over the CNT surface. The mechanism for the deposition is based on carboxyl and probably hydroxyl functional groups formed in the first step, acting as nucleation sites for Ag precipitation in the second step. The single step route resulted in the formation of sub-micrometric Ag particles heterogeneously mixed to CNT bundles.

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“…In order to obtain light weight structures, the low elastic modulus of AMCs, compared to other MMCs is the most important problem to overcome in the substitution of AMCs. Thus, many researchers have attempted to improve the strength of AMCs by reinforcing CNTs [41].…”

Section: Introductionmentioning

confidence: 99%

Effect of coarse grain content on microstructure, cold workability and strain hardening behavior of trimodaled AA 6061 nanocomposites reinforced with multi-walled carbon nanotubes

Jeyasimman

Narayanasamy

2016

Advanced Powder Technology

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Synergistic strengthening by load transfer mechanism and grain refinement of CNT/Al–Cu composites

Cited by 254 publications

References 23 publications

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

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

Ag ion decoration for surface modifications of multi-walled carbon nanotubes

Effect of coarse grain content on microstructure, cold workability and strain hardening behavior of trimodaled AA 6061 nanocomposites reinforced with multi-walled carbon nanotubes

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