Silver Copper Alloy

Silver Copper Alloy powder is an alloy of silver and copper with specific properties and applications.

Properties

Appearance: Depending on the content of silver and copper, generally brown or brown-black.

Density: The density of silver is about 10.5 g/cm3 and the density of copper is about 8.96 g/cm3. The density of silver copper alloy powder varies according to the ratio of the two, and is usually between the densities of silver and copper.

Melting point: The melting point of silver is 961.78°C and that of copper is 1083.4°C. The melting point of silver copper alloys varies according to the ratio of the components, and is generally between the two melting points, but the specific melting point data may vary according to the ratio of the specific alloy components.

Hardness: Silver copper alloy powders have a higher hardness than pure silver, which is reinforced by the addition of copper.

OXIDATION RESISTANCE: Silver copper alloy powders are oxidation resistant to a certain extent, but compared to sterling silver, the oxidation resistance is reduced by the presence of copper. In air, copper is easily oxidised and may affect the overall stability of the alloy powder.

Conductivity: silver is an excellent conductive metal, copper also has good conductivity, silver copper alloy powder maintains good conductivity, but due to the addition of copper, the conductivity will be slightly lower than pure silver.

Fluidity: It has good fluidity and is suitable for powder metallurgy and various additive manufacturing processes, such as selective laser melting (SLM), electron beam melting (EBM) and laser cladding.

Applications

Electronic industry field:

Conductive materials: silver copper alloy powder is often used to prepare conductive adhesives, conductive pastes, etc. due to its good conductivity and low cost. These materials can be used in the encapsulation of electronic components, the manufacture of printed circuit boards (PCB), and conductive connections in electronic equipment. For example, in the production of mobile phones, computers and other electronic products, conductive adhesive can be used to connect the chip and the circuit board, silver copper alloy powder conductivity can ensure stable signal transmission.

Electromagnetic shielding materials: In modern electronic equipment, electromagnetic radiation and interference is an important issue. Silver-copper alloy powder can be used to manufacture electromagnetic shielding coatings, conductive rubber, conductive plastics and other electromagnetic shielding materials, these materials can effectively block or absorb electromagnetic radiation, to protect the normal operation of electronic equipment and human health.

Welding field:

Brazing material: silver copper alloy powder can be used as brazing material for joining metals. Its relatively low melting point and good fluidity enable it to achieve good soldering results at lower temperatures. For example, silver-copper alloy brazing materials are commonly used in the aerospace, automotive, and electronic equipment industries to weld various metal parts, such as pipes, radiators, and electronic components.

Cladding materials: Through laser cladding, plasma cladding and other technologies, silver copper alloy powder is cladded on the metal surface, which can improve the abrasion resistance, corrosion resistance and high temperature resistance of the metal surface. For example, in machinery manufacturing, mould manufacturing and other industries, laser cladding silver-copper alloy powder can be used to repair worn parts and improve the service life of moulds.

Catalyst field: Silver-copper alloy powder can be used as a catalyst in certain chemical reactions. Due to the synergistic effect of silver and copper, silver-copper alloy catalysts have high catalytic activity and selectivity in some organic synthesis reactions, oxidation reactions and hydrogenation reactions. For example, silver copper alloy catalysts can be used for the synthesis of some important organic compounds in fine chemical and pharmaceutical industries.

Jewellery manufacturing field: silver-copper alloy powder can be used in the manufacture of jewellery, such as silver-copper alloy rings, necklaces, earrings and so on. Silver-copper alloy jewellery has high hardness and wear resistance, as well as good decorative properties. By adjusting the ratio of silver and copper, different colours and hardnesses of alloy materials can be obtained to meet the needs of different consumers.

Antibacterial field: silver has good antibacterial properties, while copper also has a certain antibacterial effect. Silver copper alloy powder can be used to make antimicrobial materials, such as antimicrobial coatings, antimicrobial plastics, antimicrobial fibres and so on. These antimicrobial materials can be used in medical, health, food processing and other industries to effectively inhibit the growth and reproduction of bacteria and protect people’s health.