Electrochemical deposition of copper on an iron powder

Autor: N. E. Gordievskaya, L. M. Kurvyakova
Rok vydání: 1983
Předmět:
Zdroj: Soviet Powder Metallurgy and Metal Ceramics. 22:785-787
ISSN: 0038-5735
DOI: 10.1007/bf00790855
Popis: Copper can be introduced into an iron charge by electroplating the latter with copper in a pyrophosphate electrolyte of the following composition: 50 CuSO4·5H2O, 200 K4P2O7, and 50 g/liter K2HPO, pH=7.5–8.9. The electrolyte operates in quite a stable manner at a temperature of 293–298°K and a circulation rate ensuring its complete replacement in the bath in 1 h. To obtain compact coatings of uniform thickness in a charge with up to 15% of copper, it is necessary to perform electrolysis at a current density of not more than 5 A/dm2 with a powder fill of 75 g/dm2.
Databáze: OpenAIRE