Effect of carbon nanotube damage on the mechanical properties of aluminium–carbon nanotube composites

Carbon nanotube induced microstructural characteristics in powder metallurgy Al matrix composites and their effects on mechanical and conductive properties

“…2a). In high energy ball milling processes, severe plastic deformation happened to Al powder particles, accompanied with noticeable CNT damage [15,18,23,24]. In the present process, there was no great change in CNT length due to the low energy input.…”

“…In previous studies, most attention was paid on the CNT structures in AMCs fabricated by powder metallurgy (PM) methods. The dispersion state [12,13], content [14], diameter [15], alignment [16], type [17] and damage state [18] of CNTs were reported as significant parameters influencing the mechanical and conductive properties. Some studies also investigated the matrix effect on the mechanical properties of CNT/Al composites with different grain sizes [19] and alloying elements [14,20].…”

Mechanical and Microstructural Response of an Aluminum Nanocomposite Reinforced with Carbon-Based Particles

“…This makes this type of reinforcements attractive in the manufacturing of MMC´s, particularly Al-matrix composites, due to its low density, high workability and increased properties 17 . A major goal of this work is to show that we have been identified a methodology to improve bonding between particles, which in turn, minimize porosity and prevent undesirable chemical reactions 8 that is accomplished by mechanical milling (MM) resulting an high homogeneity and grain size refining (100 nm or less) [18][19][20] . Experience has shown that milling of Al and graphite is not the right processing method 21 .…”

Enhanced ductility of Mg–3Al–1Zn alloy reinforced with short length multi-walled carbon nanotubes using a powder metallurgy method

“…The structure of CNTs may be damaged during ball milling process and CNTs may agglomerate (due to van der Waals forces) during disintegrated melt deposition/stir casting process. Hassan et al [23] investigated the effect of CNT's integrity on mechanical behavior of CNTs reinforced aluminum composites. Recently, Li et al [24] attempted to fabricate magnesium composites with uniform distribution of CNTs via a improved stir casting technique.…”