Hot Corrosion Behaviour of Detonation Gun Sprayed Al₂O₃-40TiO₂ Coating on Nickel Based Superalloys at 900°C

Table 2

Characteristics of Al₂O₃-40TiO₂ coating powder.

Powder	Make and commercial code	Chemical composition (wt%)	Morphology	Particle shape	Powder size
Al2O3-40TiO2 coating	H.C. Starck Amperit 745.001	SiO2 maximum 0.1%; Fe2O3 maximum 0.3%; Na2O maximum 0.3%; Al2O3 balance	Fused	Regular and angular block	45/22 𝜇m