Silver palladium alloy powder is an important raw material that utilized in thick film conductive pastes. This kind of alloy powder could be produced chemically. Silver and palladium powders accurately weighing as Ag: Pd=70:30, after dissolving in nitric acid, complexation with ammonia to form the stable complexes. Next step is adjusting the solution’s pH to 2~4, and mixing and stirring the solution evenly. When the temperature between 30~50°C, the mixed complexes solution back-dried into the container that containing the reducing agent and the dispersant while stirring. After washing and drying, a Ag-30Pd flocculent ultrafine alloy powder taken shape. The alloy powder could be utilized to produce the thick film slurry, which has good reliability. |