Akademik Veri Yönetim Sistemi
World Powder Metallurgy Congress and Exhibition, World PM 2010, Florence, İtalya, 10 - 14 Ekim 2010, cilt.1, (Tam Metin Bildiri)
Cu-Zn alloy powders were produced from non-cyanide pyrophosphate-based brass plating solutions by electrolysis. Electrolytic Cu-Zn alloy powders were galvanostatically obtained in electrolytes composed of copper and zinc sulphates and potassium pyrophosphate (K4P2O7) which is the main ligand. In this study, the effect of current density (50-150 mA cm-2) and Cu/Zn mole ratio (0.10-9.00) on the alloy powder composition and morphology were investigated. In all experiments, total copper and zinc ion concentrations (0.22 M), stirring speed (250 rpm) and temperature of electrolyte (30°C) were taken as constant. Copper contents of electrolytic brass powders ranged from 6 to 97%. The morphologies of electrolytic powders were examined by SEM technique and the production data such as current efficiency, specific energy consumption were calculated depend on the working conditions of the obtained powders.