Effect of ceramic particle size on densification behavior, microstructure formation, and performance of TiB₂-reinforced Al-based composites prepared by selective laser melting

Abstract

Abstract

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

“…1c [39]. Intuitively, micrometric particles altered the molten pool rheology, surface tension, and metal vapor density, as has been reported [7,40,41]. Also, a pronounced spattering phenomenon was observed when 5 vol.% coated -D was mixed with Cu compared to a pure Cu bed situation (Fig.…”

“…The difficulties encountered in the 3D printing of micro composites arise from the significant size of the solid reinforcement, which plays a critical role in the densification behavior. L. Xi et al showed that finer reinforcements allow manufacturing denser composites compared to a coarser reinforcement [7]. Micrometric particles significantly alter the transit molten pool dynamics, rheology, and flowability, leading to porous parts' formation [8][9][10].…”

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

“…Metal vapor-induced entrainment caused powder-spattering behavior [ 44 ]. To be intuitive, micrometric particles changed the surface tension, molten pool rheology, and metal vapor density according to declaration [ 45 , 46 , 47 ]. Also, it was believed that the imbalance of the molten pool, hot spatter collision during flight and entrained particles gathered on the solidified area were among the major driving forces for big spatter production.…”