Silver nano particle joint used to form composite contact for use in a circuit breaker

A method of joining two electrically conductive components assembled within a circuit breaker, comprising:

• providing a first component of the circuit breaker comprising a silver alloy material of a first metal and Silver (Ag), the first component having a first surface;
• providing a second component of the circuit breaker comprising a non-ferrous material of a second metal with an electrolytic coating of Silver (Ag) thereon, the second component having a second surface;
• applying silver nanoparticles (Np—Ag) having a particle size between 1 nm and 100 nm in an interface between the first surface of the first component and the second surface of the second component by depositing a plurality of drops of the silver nanoparticles (Np—Ag) between the first and second surfaces to form a bond between Silver (Ag) portions of the first, second component and the applied silver nanoparticles (Np—Ag);
• performing a resistance projection welding using current and pressure and increasing a temperature of the interface with a heat generated by an electric resistance of the silver alloy material and the non-ferrous material without the use of additional materials such as coated projections of materials or brazing based on filler metals, such that the silver nanoparticles (Np—Ag) bind the first component to the second component in an assembly;
• and
• assembling the circuit breaker using the assembly of the first and second components.