CC-BY-NC-NDNedeljković, MilanMladenović, SrbaPetrović, JasminaMitrović, Milijana2024-12-062024-12-062024978-86-6305-152-2https://repozitorijum.tfbor.bg.ac.rs/handle/123456789/5901Lead-based solders are harmful to the environment and human health, so they must be replaced. Numerous studies have focused on the production of eco-friendly solder alloys. Recently, there has been an increasing number of researches dealing with lead-free composite solder alloys. This paper presents a review of research on the influence of graphene nanosheets (GNS) on the wettability of tin-based solder alloys. GNSs have been used to improve the physical and mechanical properties of solder. The variable mass content of GNS particles was successfully pressed into lead-free solder using a high-planetary ball mill. This method enabled better homogeneous mixing and consolidation of the mixed powder. After that, the powder that was obtained was sintered, and the effect of GNS on wettability was investigated. Increasing the mass content of GNS reduces the surface tension between the substrate and the composite solder, resulting in a lower contact angle and improved wettability.enLead-free soldersgraphene nanosheetshigh-planetary ball millsintering.conferenceObject