Interface engineering of graphene/copper matrix composites decorated with tungsten carbide for enhanced physico-mechanical properties

Dong, Longlong; Fu, Yong Qing; Liu, Y.; Lu, Jiping; Zhang, W.; Huo, Wangtu; Jin, Lei; Zhang, Y.S.

doi:10.1016/j.carbon.2020.10.091

Cited by 80 publications

(23 citation statements)

References 72 publications

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“…In this study, CuMCs with both high UT and high EC were achieved. In Figure 8 a, the UT and EC values of the SSCu@rGO/Cu composites prepared in this paper are compared with those of other carbon-containing CuMCs [ 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 ]. It can be seen that most studies could not achieve both high UT and high EC, mainly because of the incompatibility between the strengthening and conductive mechanisms of carbon-based CuMCs.…”

Section: Resultsmentioning

confidence: 99%

“…The YS increment Δ σ G of the composites relative to the matrix caused by the grain refinement is

where K = 140 MPa μm 1/2 is the Hall–Petch coefficient of Cu [ 41 ]. As shown in Figure 9 c,d, the grain sizes of Cu and the SSCu@rGO/Cu composites were measured, and the average grain sizes are d M = 8.6 μm and d C = 4.5 μm, respectively.…”

Section: Resultsmentioning

confidence: 99%

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Simultaneously Enhancing the Strength, Plasticity, and Conductivity of Copper Matrix Composites with Graphene-Coated Submicron Spherical Copper

Yang

Liang

et al. 2022

Nanomaterials

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In this study, Cu matrix composites reinforced with reduced graphene oxide-coated submicron spherical Cu (SSCu@rGO) exhibiting both high-strength plastic product (UT) and high electrical conductivity (EC) were prepared. SSCu@rGO results in the formation of Cu4O3 and Cu2O nanotransition layers to optimize the interface combination. In addition, as a flow carrier, SSCu@rGO can also render graphene uniformly dispersed. The results show that SSCu@rGO has a significant strengthening effect on the Cu matrix composites. The relative density (RD) of the SSCu@rGO/Cu composites exceeds 95%, and the hardness, UT, and yield strength (YS) reach 106.8 HV, 14,455 MPa% (tensile strength (TS) 245 MPa, elongation (EL) 59%), and 119 MPa; which are 21%, 72%, and 98% higher than those of Cu, respectively. Furthermore, EC is 95% IACS (International Annealed Copper Standard), which is also higher than that of Cu. The strength mechanisms include transfer load strengthening, dislocation strengthening, and grain refinement strengthening. The plastic mechanisms include the coordinated deformation of the interface of the Cu4O3 and Cu2O nanotransition layers and the increase in the fracture energy caused by graphene during the deformation process. The optimized EC is due to SSCu@rGO constructing bridges between the large-size Cu grains, and graphene on the surface provides a fast path for electron motion. This path compensates for the negative influence of grain refinement and the sintering defects on EC. The reduced graphene oxide-reinforced Cu-matrix composites were studied, and it was found that the comprehensive performance of the SSCu@rGO/Cu composites is superior to that of the rGO/Cu composites in all aspects.

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Section: Resultsmentioning

confidence: 99%

“…The YS increment Δ σ G of the composites relative to the matrix caused by the grain refinement is

Section: Resultsmentioning

confidence: 99%

Simultaneously Enhancing the Strength, Plasticity, and Conductivity of Copper Matrix Composites with Graphene-Coated Submicron Spherical Copper

Yang

Liang

et al. 2022

Nanomaterials

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“…Previous studies of Cu matrix composites using reduced graphene oxide (rGO) and CNTs as the carbon sources have shown that interfacial carbides are preferentially formed at the defective sites of the rGO and CNTs because of the highly reactive nature of carbon atoms in these defects (pristine and produced) regions, as well as easy formation of carbides. [ 25–28 ] Therefore, the defect structures and distribution of carbon sources play critical roles in the nucleation and growth of these carbides. Figure 2g schematically summarizes the mechanisms for interfacial TiC phase formation and the evolution of GNPs during the ball milling process.…”

Section: Resultsmentioning

confidence: 99%

“…The increased strength in graphene or CNTs reinforced MMCs can be attributed to a variety of mechanisms, including grain refinement strengthening, [ 37,38 ] load transfer strengthening, [ 16 ] solution strengthening, [ 27 ] Orowan looping strengthening, in situ TiC strengthening, [ 39–41 ] and thermal expansion mismatch strengthening. [ 18 ] However, not all these strengthening mechanisms are contributed to the increased strength in the present study.…”

Section: Resultsmentioning

confidence: 99%

Controlled Interfacial Reactions and Superior Mechanical Properties of High Energy Ball Milled/Spark Plasma Sintered Ti–6Al–4V–Graphene Composite

et al. 2021

Self Cite

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Ball milling process has become one of the effective methods for dispersing graphene nanoplates (GNPs) uniformly into matrix; however, there are often serious issues of structural integrity and interfacial reactions of GNPs with matrix. Herein, GNPs/Ti‐6Al‐4V (GNPs/TC4) composites are synthesized using high energy ball milling (HEBM) and spark plasma sintering. Effects of ball milling on microstructural evolution and interfacial reactions of GNPs/TC4 composite powders during HEBM are investigated. As ball milling time increase, particles size of TC4 is first increased (e.g., ≈104.15 μm, 5 h), but then decreased to ≈1.5 μm (15 h), which is much smaller than that of original TC4 powders (≈86.8 μm). TiC phases are in situ formed on the surfaces of TC4 particles when ball milling time is 10Thinsp;h. GNPs/TC4 composites exhibit 36–103% increase in compressive yield strength and 57–78% increase in hardness than those of TC4 alloy, whereas the ductility is reduced from 28% to 7% with an increase of ball milling time (from 2 to 15 h). A good balance between high strength (1.9 GPa) and ductility (17%) of GNPs/TC4 composites is achieved when the ball milling time is 10 h, attributing to the synergistic effects of grain refinement strengthening, solid solution strengthening, and load transfer strengthening from GNPs and in situ formed TiC.

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“…Theoretically, they can retain the high electrical conductivity and high thermal conductivity of the Cu metal material while having good mechanical properties [ 11 , 12 ]. Moreover, graphene/Cu composite has good designability and is expected to be applied in the fields of different structures and functional materials [ 13 , 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure Evolution of Graphene and the Corresponding Effect on the Mechanical/Electrical Properties of Graphene/Cu Composite during Rolling Treatment

Xiu

Zhan³

et al. 2022

Materials

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Rolling enables the directional alignment of the reinforcements in graphene/Cu composites while achieving uniform graphene dispersion and matrix grain refinement. This is expected to achieve a breakthrough in composite performance. In this paper, the process parameters of rolling are investigated, and the defects, thickness variations of graphene and property changes of the composite under different parameters are analyzed. High-temperature rolling is beneficial to avoid the damage of graphene during rolling, and the prepared composites have higher electrical conductivity. The properties of graphene were investigated. Low-temperature rolling is more favorable to the thinning and dispersion of graphene; meanwhile, the relative density of the composites is higher in the low-temperature rolling process. With the increase of rolling deformation, the graphene defects slightly increased and the number of layers decreased. In this paper, the defect states of graphene and the electrical conductivity with different rolling parameters is comprehensively investigated to provide a reference for the rolling process of graphene/copper composites with different demands.

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Interface engineering of graphene/copper matrix composites decorated with tungsten carbide for enhanced physico-mechanical properties

Cited by 80 publications

References 72 publications

Simultaneously Enhancing the Strength, Plasticity, and Conductivity of Copper Matrix Composites with Graphene-Coated Submicron Spherical Copper

Simultaneously Enhancing the Strength, Plasticity, and Conductivity of Copper Matrix Composites with Graphene-Coated Submicron Spherical Copper

Controlled Interfacial Reactions and Superior Mechanical Properties of High Energy Ball Milled/Spark Plasma Sintered Ti–6Al–4V–Graphene Composite

Microstructure Evolution of Graphene and the Corresponding Effect on the Mechanical/Electrical Properties of Graphene/Cu Composite during Rolling Treatment

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