METHOD FOR PRODUCTION OF Ag/SnO POWDER MIXTURE FOR INTERRUPTING CONTACTS Russian patent published in 2012 - IPC C22C1/05 B22F9/24 H01H1/237 

FIELD: metallurgy.

SUBSTANCE: the invention relates to powder metallurgy, in particular, to metal powder products. It can be used in production of ceramic metal materials for interrupting contacts based on silver and used in low-voltage equipment. The intermediate thermally unstable composition components Ag₂O and Na₂SnO₃ are produced during the single-stage deposition from the solution containing AgNO₃, Na₂SnO₃ and NaOH. The deposit containing SnO₂ is extracted from the resulting mixute, and the mixture is dried and thermally processed.

EFFECT: production of material with equal distribution of finely dispersed oxide phase over the whole volume.

3 dwg, 3 ex