PEMBENTUKAN LAPISAN KOMPOSIT Ni- TiAlN/Si3N4 MENGGUNAKAN METODE ELEKTRODEPOSISI DENGAN VARIASI TEMPERATUR

Abstract

Research was conducted on coating process of the Ni-TiAlN/Si3N4 composite film to study the effect of various temperature on the surface morphology of the Ni-TiAlN/Si3N4 composite film. The coating process was conducted by electrodeposition method with a 5 mA of current for 15 minutes on tungsten carbide substrate with electrolyte solution that consists of 6 g/L AlN, 6 g/L TiN, 40 g/L H3BO3, 0.6 g/L Si3N4, 0.17 M NiCl2.6H2O, 0.38 M NiSO4.6H2O dan 0,6 g/L Sodium Dodecyl Sulfate. Variations temperature is 35°C, 40°C and 45°C The composite film morphology was characterized by Scanning Electron Microscopy (SEM). The results showed that as temperature increased, the Ni-TiAlN/Si3N4 composite film morphology was formed increasingly uneven, has coarser grain shape and not homogenous.