| 摘要 |
FIELD: physics.SUBSTANCE: powder for current-conducting pastes is fine metal powder, wherein particles of the powder have pronounced faces obtained by mechanical processing of the particles preferably with an oval shape with centrifugal acceleration. The average size of the particles is less than 1.5 mcm and density of the powder ranges from 4.0 g/cmto 8.0 g/cm. The method of producing and optimising parameters of the powder for current-conducting pastes involves preparing an aqueous metal salt solution, reducing the metal powder by adding the metal salt solution to a solution of a reducing agent, wherein the solution of the reducing agent further contains at least one colloid-forming substance; after reduction, the metal powder is mechanically processed using centrifugal acceleration with a factor ranging from 15 g to 40 g.EFFECT: improved morphological properties of powder particles, reduced aggregation of particles and high density of the powder, simple and cheap method of obtaining the powder, high environmental safety of the powder and method for production thereof.2 cl, 5 dwg, 1 tbl, 10 ex |
