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Silver palladium alloy powder
  • Silver palladium alloy powder

Silver palladium alloy powder

Silver palladium alloy powder is a precious metal composite powder made from high-purity silver and palladium as raw materials through alloying melting and powder making processes. Its purity can usually reach over 99.95%. The product combines the excellent properties of silver and palladium: the silver component provides extremely high conductivity and thermal conductivity, while the palladium component can effectively suppress the electromigration phenomenon of silver under high temperature, high humidity, and electric field, while enhancing the oxidation resistance and corrosion resistance of the powder. This synergistic effect makes silver palladium alloy powder a key conductive functional phase in the field of thick film electronic pastes.

In principle, silver palladium alloy powder is dispersed in the glass bonding phase, and a dense conductive layer is formed on the surface of the ceramic substrate through screen printing and sintering processes. The addition of palladium can enhance the solder corrosion resistance and long-term chemical stability of the conductive layer. Alloying treatment causes silver palladium to form a solid solution or intermetallic compound, and its temperature coefficient of resistance and sintering characteristics can be precisely controlled by adjusting the silver palladium ratio.

The core advantages of this product are: excellent electrical and thermal conductivity, oxidation and corrosion resistance; The purity and particle size specifications can be customized to adapt to the dispersion and sintering processes of different slurry systems; Widely used in the fields of chip resistor terminal electrodes, MLCC internal electrodes, and catalysts.


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+86-13826586185

Product Introduction: High purity, good dispersibility, and high degree of alloying silver palladium alloy powder. Silver alloy powder is used as a thick film slurry for conductive phases, suitable for the inner and outer electrodes of multi-layer ceramic capacitors, as well as for the terminal conductors and electrodes of sheet resistors.

Product Features

  1. Excellent conductivity: Silver palladium alloy powder inherits the high conductivity of silver, making it the preferred material in the manufacturing of electronic connectors, conductive pastes, thick film resistors, and other fields.

  2. Good corrosion resistance: The addition of palladium improves the corrosion resistance of the alloy, making silver palladium alloy powder stand out in applications that require resistance to harsh environmental conditions.

  3. High stability: The stability of alloy powder enables it to maintain good performance in high temperature and high humidity environments, making it suitable for aerospace, military, and precision electronic equipment.

  4. Oxidation resistance: Silver palladium alloy powder has excellent oxidation resistance and is suitable for making electronic components that require long-term operation without degradation.

  5. Processability: Silver palladium alloy powder has good processability and can be made into various shapes and sizes to meet the precise requirements of different electronic components.

Application Fields

  1. Electronic devices: Silver palladium alloy powder is widely used in the manufacturing of electronic pastes, multi-layer ceramic capacitors, and internal and external electrode materials for electronic devices. Its good conductivity and stability provide strong guarantees for the performance of electronic devices.
  2. In the chemical industry, silver palladium alloy powder can be used as a catalyst and active component in catalytic reactions to promote chemical reactions and improve production efficiency.
  3. Aerospace: The aerospace industry has extremely high requirements for materials, and silver palladium alloy powder is used to manufacture key components such as high-temperature alloys and precision instruments due to its excellent high temperature resistance and corrosion resistance.
  4. Automobile manufacturing: In the field of automobile manufacturing, silver palladium alloy powder can be used to manufacture components such as sensors and ignition systems, improving the performance and reliability of automobiles.

preparation process

The preparation process of silver palladium alloy powder mainly includes the following:

  1. Liquid phase reduction method: Using silver and palladium nitrate solutions as oxidants, appropriate reducing agents are used for the reduction reaction, and the desired silver palladium alloy powder is obtained by controlling the reaction conditions. The alloy powder prepared by this method has uniform particle size and good dispersion, which is suitable for high-end applications such as electronic pastes.
  2. Wet chemical method: Convert silver and palladium compounds into alloy powders through wet chemical reactions. The alloy powder prepared by this method has high purity and controllable particle size, but the preparation process is relatively complex.
  3. Physical methods such as mechanical alloying and sputtering can also be used to prepare silver palladium alloy powder. The alloy powders prepared by these methods have larger particle sizes, but can be refined through subsequent processing.

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