Fabrication of carbon nanotubes/Cu composites with orthotropic mechanical and tribological properties

Zhou, Zheng; Chen, Yang; Zhang, Meng; Liu, Jishi; Yang, Anxin; Chen, Lie; Yang, Qibiao; Lou, Deyuan; Liu, Dun

doi:10.1016/j.msea.2021.140788

Cited by 26 publications

(21 citation statements)

References 84 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The nanophase strengthening mechanism of metal matrix composites generally includes a load transfer effect from the matrix to reinforcements [44], grain refinement [45], Orowan ring strengthening [46]. We proved that the enhancement of mechanical properties of MWCNTs/Cu composites was mainly attributed to load transfer effect from matrix to MWCNTs in our previous studies [28]. It can be seen from Figures 2a and 3a that MWCNTs are aligned along the load direction of tensile test.…”

Section: Mechanical Propertiessupporting

confidence: 66%

“…Coated MWCNTs (3 vol.%), Cu powder, 0.3 wt.% zinc stearate% zinc stearate and anhydrous ethanol were mixed together and subjected to water bath ultrasonic treatment at 60 • C and 40 kHz, accompanied by stirring until a thick slurry was obtained. The mixture was dried under vacuum at 40 • C for 8 h. Then, following our previously reported process [28], namely sintering, hot extrusion, cold drawing and turning, Φ16 composite bars were obtained. Pure copper and MWCNTs/Cu composite samples were prepared by the same method as a comparison reference.…”

Section: Methodsmentioning

confidence: 99%

“…That is to say, when CNTs are dispersed in the matrix and arranged along the direction of force/electricity/heat conduction, their excellent mechanical properties, axial conductivity, and extremely high aspect ratio can be effectively utilized. However, van der Waals forces and electrostatic attraction between CNTs make them easily entangled and agglomerated, so it is difficult to disperse and align them [26][27][28][29][30]. In our previous work, CNTs were uniformly distributed and oriented in Cu matrix by nitrogen and a mechanical stirringassisted ultrasonic dispersion, hot extrusion and cold drawing process.…”

Section: Introductionmentioning

confidence: 99%

“…In our previous work, CNTs were uniformly distributed and oriented in Cu matrix by nitrogen and a mechanical stirringassisted ultrasonic dispersion, hot extrusion and cold drawing process. CNTs in the composites maintained their integrity [28]. That method was adopted in this work too.…”

Section: Introductionmentioning

confidence: 99%

“…The third method does not cause damage to CNTs, so it is considered to be one of the most effective techniques. Previous studies have shown that when Ni or Cu layers were deposited on CNTs as an intermediate layer it established tight bonding between CNTs and the Cu matrix [34][35][36][37], and the CNTs were not damaged [28,38,39].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Effect of Electroless Coatings on the Mechanical Properties and Wear Behavior of Oriented Multiwall Carbon Nanotube-Reinforced Copper Matrix Composites

et al. 2021

Self Cite

View full text Add to dashboard Cite

The effects of electroless coatings on the microstructure and composition of the interface between multi-walled carbon nanotubes (MWCNTs) and a Cu matrix and the mechanical properties and wear behavior of the resulting copper matrix composites were investigated. Ni and Cu coatings were electrolessly plated on MWCNTs and mixed subsequently with copper powder. Then copper matrix composites were prepared by sintering, hot extrusion and cold drawing processes. The results showed that MWCNTs were straight, long, uniformly dispersed and aligned in the composites. The Ni coating is more continuous, dense and complete than a Cu coating. The tensile strength, compressive strength, microhardness and tribological properties of Ni@MWCNTs/Cu composite along the drawing direction were enhanced most. The ultimate tensile strength and compressive strength were 381 MPa and 463 MPa, respectively. The friction coefficient and wear rate were reduced by 59% and 77%, respectively, compared with pure Cu samples. This study provides a new insight into the regulation of tribological properties of composites by their interface.

show abstract

Section: Mechanical Propertiessupporting

confidence: 66%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effect of Electroless Coatings on the Mechanical Properties and Wear Behavior of Oriented Multiwall Carbon Nanotube-Reinforced Copper Matrix Composites

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

Tensile Behavior of Fullerene Nanosheets Utilizing Targeted Reactive Force Fields

Giannopoulos,

Georgantzinos,

Ghavanloo

2024

Advcd Theory and Sims

View full text Add to dashboard Cite

Fullerenes, as single crystals, present exceptional mechanical and physical properties due to their hollow spherical molecular structure consisting of carbon atoms connected by covalent bonds. The idea of linking these allotropes of carbon to create monolayer networks has now been accomplished experimentally. The question that remains to be answered is if these synthesized single‐layered nanosheets of fullerene present comparable properties with graphene monolayers. To answer this important question and to estimate the full tensile stress–strain behavior of quasi‐tetragonal as well as quasi‐hexagonal configurations of C60 planar networks, several Molecular Dynamics simulations are performed in this work by using a new REAXFF and the AIREBO‐M potential. Various mechanical properties, such as Young's modulus, Poisson's ratio, ultimate tensile strength, ultimate tensile strain, and fracture energy at failure of C60 monolayers of several sizes, are computed and compared with the results reported in the literature. Furthermore, a comprehensive discussion is made regarding the significant influence of the adopted potential on the numerical predictions of the elastic mechanical and fracture behavior of the fullerene nanosheets.

show abstract

Synergistic Effects of MWCNTs and High-Pressure Torsion-Induced Grain Refinement on Microhardness, Tribological Properties, and Corrosion Behavior of Cu and Cu/MWCNT Nanocomposites

et al. 2021

View full text Add to dashboard Cite

Fabrication of carbon nanotubes/Cu composites with orthotropic mechanical and tribological properties

Cited by 26 publications

References 84 publications

Effect of Electroless Coatings on the Mechanical Properties and Wear Behavior of Oriented Multiwall Carbon Nanotube-Reinforced Copper Matrix Composites

Effect of Electroless Coatings on the Mechanical Properties and Wear Behavior of Oriented Multiwall Carbon Nanotube-Reinforced Copper Matrix Composites

Tensile Behavior of Fullerene Nanosheets Utilizing Targeted Reactive Force Fields

Synergistic Effects of MWCNTs and High-Pressure Torsion-Induced Grain Refinement on Microhardness, Tribological Properties, and Corrosion Behavior of Cu and Cu/MWCNT Nanocomposites

Contact Info

Product

Resources

About