Uniform dispersion and interface analysis of nickel coated graphene nanoflakes/ pure titanium matrix composites

Mu, Xiaonan; Cai, Houzhi; Zhang, H.M.; Fan, Qunbo; Wang, F.C.; Zhang, Zhao Hui; Ge, Y.X.; Shi, Ran; Wu, Yecun; Wang, Z.; Wang, D.D.; Chang, Shuquan

doi:10.1016/j.carbon.2018.05.013

Cited by 121 publications

(36 citation statements)

References 65 publications

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“…With the demands for light weight and energy saving in aerospace industry, titanium matrix composites (TMCs) have been considered as the preferred structural materials [13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…However, it is difficult to homogeneously disperse the GNPs and prevent severe in-situ interfacial reactions for the GNPs reinforced TMCs during their fabrication process [5,16]. It is well known that these GNPs (with large surface areas and high surface energy) are prone to agglomerate due to strong van der Waals forces among the GNPs [19][20][21]. Moreover, the significant in-situ reactions and formation of TiC during the sintering process could completely destroy the nano-structures of GNPs, thus leading to a limited strengthening effect [22].…”

Section: Introductionmentioning

confidence: 99%

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Simultaneously enhancing the strength and ductility in titanium matrix composites via discontinuous network structure

Dong

Liu

et al. 2020

Composites Part A: Applied Science and Manufacturing

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In this study, titanium matrix composites reinforced with graphene nanoplates (GNPs) were successfully prepared via an in-situ processing strategy. Both TiC nanoparticles and TiC@GNPs strips are in-situ formed at the grain boundaries, and enhance interfacial bonding strength between GNPs and Ti matrix by acting as rivets in the microstructure. The GNPs can be retained in the center of TiC layer, which provides a shielding protection effect for the GNPs.These in-situ formed TiC nanoparticles are linked together to form a discontinuous and three-dimensional (3D) network structure. Due to the formation of 3D network architecture and improved interfacial bonding, the composites show both high strength and good ductility. The significant strengthening effect reinforced by the GNPs can be attributed to a homogeneous distribution of in-situ formed TiC nanoparticles and TiC@GNPs strips, resulting in TiC interface/particle strengthening and excellent interfacial load transfer capability.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simultaneously enhancing the strength and ductility in titanium matrix composites via discontinuous network structure

Dong

Liu

et al. 2020

Composites Part A: Applied Science and Manufacturing

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“…This effect of Ni coating has also been found in Ni-coated graphene/Ti composites. 21 Furthermore, with the increase in coating time, the relative density of the composites gradually increased. For example, the relative density was measured to be $93% for uncoated CFs/Al sample, while that was increased to 96-97% for the samples with coating times of 1.5-2 min.…”

Section: Characterization Of Ni-coated Cfsmentioning

confidence: 98%

Microstructure and thermal properties of nickel-coated carbon fibers/aluminum composites

Yamamoto

Onda

et al. 2020

Journal of Composite Materials

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Electroless nickel-coated carbon fibers/aluminum composites were prepared by spark plasma sintering, and the effect of nickel coating on microstructure and thermal properties of the composites has been investigated. Nickel coating on carbon fibers resulted in more homogeneous distributions of carbon fibers in aluminum matrix, higher relative density of carbon fibers/aluminum composites, and stronger interfacial bonding between carbon fibers and aluminum. Microstructural observations exhibited that the majority of carbon fibers were randomly distributed on the sections (X-Y direction) perpendicular to spark plasma sintering pressing direction (Z direction), thus leading to an anisotropic behavior in thermal conductivity of the composites. The thermal conductivity values in the X-Y direction of the carbon fibers/aluminum composites were much higher than those in the Z direction. As a result, the nickel-coated carbon fibers/aluminum composites with a nickel-coating thickness of ∼0.2 µm showed higher thermal conductivity and lower coefficient of thermal expansion values in comparison with those of the uncoated carbon fibers/aluminum samples.

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“…For example, Hao et al [20] used a chemical plating method to deposit silver particles onto the surface layer of graphene, and prepared a silver-based bulk material by doping with 0.5 wt% graphene to obtain a bulk material with uniform microstructure, fine particles and good performance. Mu et al [21] used a chemical reduction method to obtain a sheet structure of graphene doped with nickel, which was then added into a titanium-based material. The composites effectively solved the problems of poor graphene dispersion and improved the interfacial compatibility between graphene and matrix, therefore greatly improved the strength of titanium-based materials.…”

Section: Introductionmentioning

confidence: 99%

W-Cu composites reinforced by copper coated graphene prepared using infiltration sintering and spark plasma sintering: A comparative study

Zhou

Chen

Wang

et al. 2019

International Journal of Refractory Metals and Hard Materials

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In order to solve problems of significant interfacial reactions and agglomeration in graphene reinforced W-Cu composites, powders of copper coated graphene (Cu@Gr) were pre-mechanically mixed with tungsten and copper powders, and then graphene doped W-Cu composites were sintered using two different methods, e.g., spark plasma sintering (SPS) and infiltration sintering. Microstructural analysis showed that the doped Cu@Gr powder can effectively inhibit the interfacial reaction between graphene and tungsten, prevent the segregation of graphene, and evenly distribute the copper in the binder phase. When the mixed concentration of Cu@Gr was 0.45wt.%, uniform distributions of W phase and Cu phase were obtained in the composite, and the mechanical properties and conductivity of this composite achieved their best results. When the doping content was further increased to 0.8%, WC phase was found in all alloys, thus resulting in poor mechanical and physical properties. Comparing the microstructures produced using these two methods, the composites prepared using the infiltration sintering method showed network distribution of copper phase and segregation of copper, whereas the composites prepared using the SPS method showed network skeleton phase of tungsten. Although the SPS process was performed in a much shorter time, the mechanical properties of the composites sintered using the SPS process did not show much differences with those sintered using the infiltration sintering method.

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Uniform dispersion and interface analysis of nickel coated graphene nanoflakes/ pure titanium matrix composites

Cited by 121 publications

References 65 publications

Simultaneously enhancing the strength and ductility in titanium matrix composites via discontinuous network structure

Simultaneously enhancing the strength and ductility in titanium matrix composites via discontinuous network structure

Microstructure and thermal properties of nickel-coated carbon fibers/aluminum composites

W-Cu composites reinforced by copper coated graphene prepared using infiltration sintering and spark plasma sintering: A comparative study

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