Enhancing the Mechanical Response of a Lead-Free Solder Using an Energy-Efficient Microwave Sintering Route

摘要

This study compares the effects of conventional and microwave sintering on the densification, microstructure, and tensile properties of a lead-free solder, Sn-3.5Ag. Conventional sintering was carried out in an inert atmosphere while microwave sintering was performed under ambient conditions. Microstructural characterization was carried out to investigate characteristics of grains, pores, and Ag3Sn intermetallic compounds. Tensile characterization studies revealed that 0.2% yield strength, ultimate tensile strength, and work of fracture were significantly increased by using microwave sintering.