Open AccessPreliminary Study on High-Temperature Oxidation of Ni-AlN-TiN/Si3N4 Electrodeposition Composite Coatings
Author(s) -
Esmar Budi,
Chintya Tandri,
N Darsono,
Assita Wahyu Andiani,
M Fajrin,
Widyaningrum Indrasari,
Iwan Sugihartono,
Widyaningrum Indrasari
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2019/1/012067
Subject(s) - tin , materials science , scanning electron microscope , coating , composite number , morphology (biology) , metallurgy , tungsten carbide , tungsten , electrolyte , carbide , chemical engineering , composite material , chemistry , electrode , genetics , engineering , biology
High-temperature oxidation is a serious problem for several materials during their application in aggressive environments, such as high temperatures, high-speed machining, and corrosive environments. This research was conducted to analyze the effect of high-temperature oxidation on the surface morphology of the Ni-AlN-TiN/Si3N4 composite coating. The coatings were electrodeposited at a current of 5 me for 15 minutes and various electrodeposition temperatures of 35°C, 40°C, and 45°C. This composite coating was formed on tungsten carbide substrates with the electrolyte solution consisting 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, and 0.6 g/L Sodium Dodecyl Sulfate. The high-temperature oxidation process was carried out at a temperature of 700°C for 2 hours in the furnace. The surface morphology was characterized by using Scanning Electron Microscopy (SEM). The results showed that the surface morphology of the Ni-AlN-TiN/Si3N4 composite coating deposited at a temperature of 40°C had a scaled growth, reduced cracks, and reduced pore. It was due to the effect of high-temperature treatment.