Impact of Critical Plasma Spraying Parameter (CPSP) on Plasma-Sprayed Al2O3-3 TiO2 Coatings
M. Djendela, b, O. Allaouib, M. Maazouzc, R. Boubaayaa, b
aDepartment of Science and Technics, Faculty of Technology, University of Bordj Bou Arreridj, Algeria
bLaboratoire Génie des Procédés, Université de Laghouat, BP 37G, Laghouat, Algérie
cDépartement de Génie Mécanique, Faculté de Technologies, Université de M'Sila, BP 166, M'Sila, Algérie
Full Text PDF
Atmospheric plasma spray (APS) coatings are successfully used in many industrial applications, where high wear and corrosion resistance with thermal insulation are required. Critical plasma spraying parameters (CPSP) is a key factor to control the quality of coatings. In this study, alumina-3 wt% titania coatings were prepared by APS torch at three different CPSP conditions (384.09, 469.44, and 563.33) on AISI 304 L stainless steel substrate. The microstructure, sliding wear rates, and porosity of the alumina-3 wt% titania composite coatings were investigated and correlated to CPSP conditions. The obtained results show that increasing the critical plasma spraying parameters increases the hardness and anti-wear behaviour of alumina-3 wt% titania coating.

topics: Plasma spray, Coatings, Porosity, Wear behaviour, CPSP\\vs*{10pt}