Manufacturing of complex diamond-based composite structures via laser powder-bed fusion

Constantin, Loïc; Kraiem, Nada; Wu, Zhipeng; Cui, Bai; Battaglia, Jean-Luc; Girard, Christian; Silvain, Jean‐François; Lu, Yong Feng

doi:10.1016/j.addma.2021.101927

Cited by 20 publications

(11 citation statements)

References 50 publications

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“…A pronounced spattering situation was found while mixing 5 vol.% coated diamond with copper by comparing with a pure copper bed condition, thus determining the negative role of the coated diamond in the molten pool. The hot particles partially fused with the solid materials after falling back into the powder bed, cooled down after ejection [ 29 ].…”

Section: Resultsmentioning

confidence: 99%

“…A series of experiments were carried out via SLM single-line scanning to determine the appropriate processing parameters, and a cubic sample was prepared to characterize the composites’ morphology and microstructure. The optimization of 3D printing parameters and strategy herein can be useful to develop new approaches for the further construction of a wider range of diamond-particle-reinforced MMCs [ 29 ]. In this work, the dense 1 vol.% copper-coated diamond/copper composite manufactured via SLM displays good interfacial bonding of the copper matrix and diamond reinforcement, and excellent thermal and mechanical performance were firstly revealed, which would serve as a promising candidate for thermal management material.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of Titanium and Copper-Coated Diamond/Copper Composites via Selective Laser Melting

Zhang

et al. 2022

Micromachines

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The poor wettability and weak interfacial bonding of diamond/copper composites are due to the incompatibility between diamond and copper which are inorganic nonmetallic and metallic material, respectively, which limit their further application in next-generation heat management materials. Coating copper and titanium on the diamond particle surface could effectively modify and improve the wettability of the diamond/copper interface via electroless plating and evaporation methods, respectively. Here, these dense and complex composites were successfully three-dimensionally printed via selective laser melting. A high thermal conductivity (TC, 336 W/mK) was produced by 3D printing 1 vol.% copper-coated diamond/copper mixed powders at an energy density of 300 J/mm3 (laser power = 180 W and scanning rate = 200 mm/s). 1 and 3 vol.% copper-coated diamond/copper composites had lower coefficients of thermal expansions and higher TCs. They also had stronger bending strengths than the corresponding titanium-coated diamond/copper composites. The interface between copper matrix and diamond reinforcement was well bonded, and there was no cracking in the 1 vol.% copper-coated diamond/copper composite sample. The optimization of the printing parameters and strategy herein is beneficial to develop new approaches for the further construction of a wider range of micro-sized diamond particles reinforced metal matrix composites.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication of Titanium and Copper-Coated Diamond/Copper Composites via Selective Laser Melting

Zhang

et al. 2022

Micromachines

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“…The deposition process consists of creating a melt on a substrate and simultaneously feeding the powder into the melt [ 38 , 39 , 40 ]. In general, other additive techniques are used in the composite formation, such as powder bed fusion for the surface-modified copper powder production and subsequent laser-based additive manufacturing [ 41 , 42 , 43 ], binder jet printing for the tungsten-heavy alloying [ 44 ], and the extrusion of the material for the porous tungsten carbide composite fabrication [ 45 ], etc.…”

Section: Introductionmentioning

confidence: 99%

Isostatic Hot Pressed W–Cu Composites with Nanosized Grain Boundaries: Microstructure, Structure and Radiation Shielding Efficiency against Gamma Rays

et al. 2022

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The W–Cu composites with nanosized grain boundaries and high effective density were fabricated using a new fast isostatic hot pressing method. A significantly faster method was proposed for the formation of W–Cu composites in comparison to the traditional ones. The influence of both the high temperature and pressure conditions on the microstructure, structure, chemical composition, and density values were observed. It has been shown that W–Cu samples have a polycrystalline well-packed microstructure. The copper performs the function of a matrix that surrounds the tungsten grains. The W–Cu composites have mixed bcc-W (sp. gr. Im3m) and fcc-Cu (sp. gr. Fm3m) phases. The W crystallite sizes vary from 107 to 175 nm depending on the sintering conditions. The optimal sintering regimes of the W–Cu composites with the highest density value of 16.37 g/cm3 were determined. Tungsten–copper composites with thicknesses of 0.06–0.27 cm have been fabricated for the radiation protection efficiency investigation against gamma rays. It has been shown that W–Cu samples have a high shielding efficiency from gamma radiation in the 0.276–1.25 MeV range of energies, which makes them excellent candidates as materials for radiation protection.

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“…For instance, Spierings et al [22] describe the possibility of obtaining metal-matrix composites with diamond additives by the SLM method for creating metalworking tools. The study from Constantin et al [23] is devoted to thermal interface development for more efficient cooling of electronic devices. The samples obtained during experiments described in the report [21] by Ma et al had high porosity and relatively low hardness; it was not possible to achieve a relative density above 90%.…”

Section: Introductionmentioning

confidence: 99%

“…The samples obtained during experiments described in the report [21] by Ma et al had high porosity and relatively low hardness; it was not possible to achieve a relative density above 90%. From the above mentioned reports [21][22][23], obtaining a high relative density of a metal-diamond composite is quite challenging. An example is reported in [22], where the authors achieved high material density above 95%, but at the expense of the composite material tending to crack along the build direction.…”

Section: Introductionmentioning

confidence: 99%

Laser Fusion of Aluminum Powder Coated with Diamond Particles via Selective Laser Melting: Powder Preparation and Synthesis Description

et al. 2021

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This work aims to study the possibility of obtaining Al–C composite from AlSi10MgCu aluminum matrix with the addition of 500 nm-sized diamond particles by selective laser melting (SLM) process. Al–C composite powder was prepared by mechanical mixing to form a uniform cover along the surface of aluminum particles. The diamond content in the resulting AlSi10MgCu-diamond composite powder was equal to 0.67 wt %. The selection of the optimal SLM parameters for the obtained composite material is presented. For materials characterization, the following methods were used: scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and Raman spectroscopy. X-ray photoelectron spectroscopy (XPS) was applied after SLM printing for a detailed investigation of the obtained composites. The presence of carbon additives and the formation of aluminum carbides in the material after the SLM process were demonstrated.

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Manufacturing of complex diamond-based composite structures via laser powder-bed fusion

Cited by 20 publications

References 50 publications

Fabrication of Titanium and Copper-Coated Diamond/Copper Composites via Selective Laser Melting

Fabrication of Titanium and Copper-Coated Diamond/Copper Composites via Selective Laser Melting

Isostatic Hot Pressed W–Cu Composites with Nanosized Grain Boundaries: Microstructure, Structure and Radiation Shielding Efficiency against Gamma Rays

Laser Fusion of Aluminum Powder Coated with Diamond Particles via Selective Laser Melting: Powder Preparation and Synthesis Description

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