Effect of coating on the microstructure and thermal conductivities of diamond–Cu composites prepared by powder metallurgy

Nano- and micro-/meso-scale engineered magnesium/diamond composites: Novel materials for emerging challenges in thermal management

“…(ii) using multimodal diamond particle mixtures to increase the diamond content in the composite [5][6][7]; or (iii) engineering the matrix-diamond interface, either by forming a new reaction layer during processing [8][9][10][11] or using diamond particles previously treated with different coatings [12][13][14][15][16][17][18].…”

“…Two strategies were used. First, a surface coating of nano-dimensioned TiC was applied to the diamond particles (TiC coatings have been proven to enhance the metal-diamond interface thermal conductance for metals such as Al [12,13] and Cu [14][15][16]). Second, at the micro-/meso-scale, a proper design route based on blending different predictive models was used to select the most adequate combinations of bimodal diamond particle mixtures.…”

Thermal Conductivity and Microstructure of Copper Coated Graphite Composite by Spark Plasma Sintering Process

“…Many investigations have been made on the diamond/metal composites family, which exhibits high performance with TC ranging from 350 Wm -1 K -1 to 700 Wm -1 K -1 [3]. However, the high price and the poor machinability limit their wide application.…”

FEM thermal analysis of Cu/diamond/Cu and diamond/SiC heat spreaders

“…Thus, the fabrications of highly thermal conductive material such as metal-matrix composites are exhaustively studied for this emerging demand. 3,4 Thermal conductivities above 20W/cmK and coefficients of thermal expansion of the order of 4-6 ×10 -6 1/K are used in conventional heat spreader materials. 5 Due to its high thermal conductivity, 6 chemical and mechanical stability, 7 low dielectric constant and high dielectric strength, 8 diamond films are one of the best candidates for thermal spreading device fabrication applications.…”

“…The utilization of diamond for thermal management application is mainly carried out in two ways: CVD coating and diamond-based metal matrix composites (MMCs) such as diamond/Cu, diamond/Al and diamond/Ag, etc, 5,9-13 Moreover, diamond-silicon carbide composites are also produced under high pressure, high temperature conditions. 14 On the other hand, diamond/β-SiC composite films exhibiting a gradient composition were synthesized by a hot filament CVD technique utilizing H 2 , CH 4 , and tetramethylsilane as reaction gases. 15 The effect of copper on the thermal management efficiency of diamond for heat sink applications is reported.…”