The passivation layer of metal nanoparticles refers to a thin film or protective layer coated on the surface of metal nanoparticles. It usually consists of a compound, such as an oxide, sulfide, or organic compound. This passivation layer can alter the surface properties of metal nanoparticles and provide protection and stability.
The powders suitable for use as lubricants can vary depending on specific applications and requirements. The following are some common powder types suitable for use as lubricants:
A dispersant is a chemical substance used to disperse nanoparticles in solution or solid. Its basic principle is to interact with the surface of nanoparticles, change surface characteristics, reduce the attraction between particles, and achieve the dispersion of nanoparticles.
Silver copper alloy powder is an alloy composed of two metals, silver and copper. The powder is usually gray white, with higher hardness and strength, as well as excellent conductivity and thermal conductivity, as well as good chemical stability.
Surfactants are divided into anionic surfactants, cationic surfactants, non ionic surfactants, and mixed surfactants. The common anionic surfactants are Sodium dodecyl sulfate (SDS), Sodium dodecylbenzenesulfonate (SDBS), hexadecyl trimethyl Ammonium bromide (CTAB), etc.
Copper nickel alloy powder, also known as cupronickel powder, is a powdered form of a metallic alloy composed of copper and nickel in varying proportions. This alloy possesses unique properties that make it suitable for several applications.
