The present invention relates to a new silver-based electrical contact material, in which silver is in a continuous phase and carbon being in a nano-dispersed phase is dispersed in continuous phase silver. The content of the dispersed phase carbon in the silver-based electrical contact material can be 0.02% to 5% by weight, on the basis of the total weight of the silver-based electrical contact material. According to the present invention, the carbon contains carbon in a diamond form. Such a silver-based electrical contact material shows excellent mechanical wear resistance and electrical performance.

The present invention relates to a new silver-based electrical contact material, in which silver is in a continuous phase and carbon being in a nano-dispersed phase is dispersed in continuous phase silver. The content of the dispersed phase carbon in the silver-based electrical contact material can be 0.02% to 5% by weight, on the basis of the total weight of the silver-based electrical contact material. According to the present invention, the carbon contains carbon in a diamond form. Such a silver-based electrical contact material shows excellent mechanical wear resistance and electrical performance.

A switch of nonmetallic macromolecular conductive material being water-resistant and resistant to oxidation includes a circuit board having electronic circuitry and a plurality of electrical contact assemblies on a top surface; and a plurality of elastic members mounted on the circuit board and each including a bottom opening, and a stem on a bottom of a top extending downward toward the bottom opening. Each electrical contact assembly is surrounded by the elastic member and the circuit board. An electrically conductive member made of nonmetallic macromolecular conductive material is formed on a bottom of the stem. An electrical contact made of nonmetallic macromolecular conductive material is formed on each electrical contact assembly. A process of manufacturing same is also included.

Disclosed are electrical contact materials and a method for preparing the same. The electrical contact material includes (i) one or more kinds of metals selected from the group consisting of silver (Ag), copper (Cu) and gold (Au), and an alloy of nickel (Ni); and (ii) carbon nano tubes (CNTs) coated with Ag nanoparticles, Ag plated CNTs, or Ag nanowires, or (i) one or more kinds of metals selected from the group consisting of Ag, Cu, Ni and Au; (ii) a metal oxide that is cadmium oxide, indium oxide, tin oxide, zinc oxide or mixture thereof; and (iii) CNTs coated with Ag nanoparticles, Ag plated CNTs, or Ag nanowires. Accordingly, it is possible to reduce the content of high-priced Ag and to obtain excellent electrical and mechanical properties.

Disclosed are electrical contact materials and a method for preparing the same. The electrical contact material includes (i) one or more kinds of metals selected from the group consisting of silver (Ag), copper (Cu) and gold (Au), and an alloy of nickel (Ni); and (ii) carbon nano tubes (CNTs) coated with Ag nanoparticles, Ag plated CNTs, or Ag nanowires, or (i) one or more kinds of metals selected from the group consisting of Ag, Cu, Ni and Au; (ii) a metal oxide that is cadmium oxide, indium oxide, tin oxide, zinc oxide or mixture thereof; and (iii) CNTs coated with Ag nanoparticles, Ag plated CNTs, or Ag nanowires. Accordingly, it is possible to reduce the content of high-priced Ag and to obtain excellent electrical and mechanical properties.

The invention relates to a silver electrolyte for the deposition of silver layers on substrates, which comprises potassium silver cyanide, potassium cyanide with a content of at least 10 g/L, at least one grain refiner with a content of 0.2 to 10 g/L, at least one dispersant with a content of 1 to 10 g/L and at least one solid component with a content of 1 to 150 g/L, wherein the particles of the solid component have an average particle size (d.sub.50) of 10 nm-100 m. Furthermore, contact surfaces and methods for the deposition of such contact surfaces are shown and the use of the electrolyte according to the invention in strip electroplating.

A mechanism comprising a plurality of parts of which a first part comprises a first contact surface and a second part comprises a second contact surface arranged to move in relation to, and in contact with, the first contact surface. The first contact surface is provided by a multilayer coating directly on a surface of a metallic substrate of the first part. The multilayer coating comprises: a base layer arrangement arranged directly on the surface of the substrate; a composite layer arranged on top of the base layer arrangement, the composite layer consisting of particles of a Graphene and Related Materials (GRM) material in a metal matrix; and a metallic top layer arranged directly on top of the composite layer.

A mechanism comprising a plurality of parts of which a first part comprises a first contact surface and a second part comprises a second contact surface arranged to move in relation to, and in contact with, the first contact surface. The first contact surface is provided by a multilayer coating directly on a surface of a metallic substrate of the first part. The multilayer coating comprises: a base layer arrangement arranged directly on the surface of the substrate; a composite layer arranged on top of the base layer arrangement, the composite layer consisting of particles of a Graphene and Related Materials (GRM) material in a metal matrix; and a metallic top layer arranged directly on top of the composite layer.