Grain Boundary Mechanics in Solder, Sintered Metals, and Thin Films
This community investigates how atomic-scale structures at grain boundaries control the mechanical strength, thermal stability, and durability of metallic interconnects and thin films used in electronics packaging and power devices.
The work focuses heavily on lead-free solder alloys, sintered silver and copper nanoparticles, and nanocrystalline thin films. Recurring themes include the evolution of microstructures under thermal cycling, the migration and segregation of atoms at grain boundaries, and the resulting effects on corrosion resistance and mechanical behavior. Researchers employ molecular dynamics, finite element modeling, and in-situ experimental techniques to understand how grain size and boundary characteristics influence fracture, creep, and fatigue in these materials.
The community is most prominent in tin research, representing 2.8% of all tin-related papers, and in copper research, accounting for 2.6% of copper papers. It also holds a significant share of nickel research at 2.4%.
The community comprises 27,841 papers, with the highest publication volume in the Journal of The Electrochemical Society, Acta Materialia, and the Journal of Applied Physics.
Recent work continues to examine grain boundary wetting in polycrystals, the mechanical properties of sintered copper nanoparticles, and the design of advanced copper alloys using computational methods.