Thermal stability of SiO₂-Al2O3-TiO2 ceramic films coated on steel plates by wet process

Abstract

A newly proposed SiO2-Al2O3-TiO2 ceramic coating slurry was deposited on a steel plate for the purpose of examining thermal stability. The coated films were found to be stable up to 700 °C in air, while were exfoliated from substrate beyond 800 °C. On the other hand, the calcination at 1100 °C in N2 atmosphere gave a good adhesion. It was also found that the coated films calcined in N2 atmosphere were stuck to substrate after re-calcined at 900 °C in air.