Influences of electric current on the wettability and interfacial microstructure in Sn/Fe system

Molecular Dynamics Simulation of the Cu/Au Nanoparticle Alloying Process

“…Among which, σ is the sintering driving force, γ stands for the material surface energy, and κ represents the surface curvature. Equation (6) shows the additional pressure difference on the irregular surface during the sintering process, which also represents the sintering driving force. According to Figure 6, there were corresponding curvature radii of each curvature on the sintering neck and surface.…”

“…Notably, the Au-Cu solders have relatively suitable melting point and pretty good mobility, which can also fill the fine space. Most importantly, they possess favorable wettability for metals, such as Cu, Fe, Co, and W, together with their alloys [5,6]. However, they are associated with the adverse defects such as hot crack and pore under moderate to high temperature (1400~1500 K), thus markedly reducing the joint mechanical performance.…”

1000 °C High-Temperature Wetting Behaviors of Molten Metals on Laser-Microstructured Metal Surfaces

“…However, only few literature studies focused on the wettability of molten metals at high temperatures (e.g., 1000 °C) compared with the wettability studies on more common liquids under more gentle conditions, such as water and low-melting-point liquid metals at room temperature. − Various simulations have been performed to predict the probable wetting behaviors of molten metals on various substrates, − but practical observations remain scarce due to the availability of materials and the strict environmental requirements. Among the restricted experimental work, researchers prefer to improve the wettability of molten metals with several kinds of solid surfaces for better performance in welding, brazing, metal-based composite formation, and lithium battery preparation. − ,− For example, Wu et al proposed a method to enhance the wettability of a kind of room-temperature gallium-based liquid metal on polyacrylate surfaces for a better connection, Fan et al modified the wetting and spreading behaviors of Sn on the SiC surface by changing the content of the alloying element Cr, Li et al enhanced the wettability of molten high manganese steel with Ni–Co-coated ZTA ceramic particles to strengthen the abrasive wear resistance of the composites, and Sui et al studied the wetting ability of molten Ce and Cu–Ce alloy on various carbon materials. Liu et al introduced ultrasonic power to improve the wetting of the Zn filler on the TC4 alloy and further strengthen the mechanical properties of the brazed joint, and Griffith et al investigated the effect of droplet size on the wetting behaviors of molten Sn on copper substrates for better performance of microsolder joints.…”

Preventing Wetting Between Liquid Copper and Solid Steel: A Simple Extraction Technique

“…Liquid metal penetrated defects in the oxide film (pores, microcracks) and established direct contact with the solid. Shen [24] observed liquid tin wetting on iron and found that the iron oxide film was tenacious, even at low pO 2 , but disruption of the oxide allowed for wetting and interfacial reactions.…”