Influence of Bi addition on the property of Ag-Bi nano-composite coatings

Abstract

Silver (Ag) coatings have been widely used in many industry areas due to their excellent conductivity. However, wider applications of Ag coatings have been hindered by their poor mechanical properties. In this research, to improve the mechanical performance, Ag-Bi nano-composite coatings were prepared by a novel ionic co-discharge method.A systematic study of the microstructure, mechanical properties, electrical conductivity and antibacterial behavior of the resulting coating was performed. The results indicated that after adding an appropriate amount of Bi containing solution into the Ag plating solution, Ag-Bi nano-particles were in-situ formed and distributed uniformly throughout the coating matrix, resulting in a significant improvement in the mechanical properties. The hardness of Ag-Bi coating was increased by 60% compared to that of the pure Ag coating. The corrosion resistance of Ag-Bi coatings was also enhanced.The outcome of this research may find a broader application in electronics, jewelry, aerospace and other industries.

Microstructure and Properties of Duplex Ni-P-TiO2/Ni-P Nanocomposite Coatings

“…In order to further improve the performance of outer layer coating, many research have been carried out by incorporating second phase nanoparticles [9][10][11] to synthesize duplex Ni-P nanocomposite coatings. However, it is hard to achieve a good suspension of nanoparticles in the coating matrix due to their small size and high surface energy, thus impeding the further development of coating performance.…”

Design Optimization for the Coating of Machine Tools Based on Eye-Tracking Experiments and Virtual Reality Technology

“…Anna et al [9] fabricated thermoplastic polymer composites using different lateral flow materials as fillers and confirmed the improvement of their mechanical properties. Yuxin et al [10] used a new ionic co-discharge method to prepare Ag-Bi nanocomposite coatings, which significantly improved the mechanical properties of the coatings.…”

Effects of heat treatment on the properties of Co–P–TiO2 nanocomposite coatings

“…In recent studies, different approaches have been used to improve the performances of Co-P coatings. For instance, doping other metallic elements is widely considered in many studies as a coating modification technique [8][9][10]. Sarkar et al [8] and Ma et al [11] modified the Co-P coating by alloying Ni into the matrix, leading to improved wear resistance.…”