Effect of electrodeposition parameters on apparent density of Sn-bronze powders using response surface methodology

ORHAN G., Gezgin G. G.

World Powder Metallurgy Congress and Exhibition, World PM 2010, Florence, İtalya, 10 - 14 Ekim 2010, cilt.3, (Tam Metin Bildiri) identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 3
  • Basıldığı Şehir: Florence
  • Basıldığı Ülke: İtalya
  • İstanbul Üniversitesi-Cerrahpaşa Adresli: Hayır

Özet

Copper-tin alloy powders are frequently used in many areas of industry including self-lubricating bearings, filters and structural parts. With experimental study; effects of current density, stirring speed, Cu/Sn mole ratio and temperature of electrolyte are investigated on morphology and one of the most important properties of a powder; apparent density. In all experiments, a total copper and tin ion concentration (0.14 M) was taken as constant. Experiments defined by Response Surface Methodology (RSM) experimental design method, at 50-150 mA. cm-2 current densities, 2-8 Cu/Sn mole ratios, 30-50 °C electrolyte temperatures and 0-400 rpm stirring speeds. Morphologies of powders determined by a Scanning Electron Microscope (SEM) and between the apparent density and parameters; a resulting response model is derived.