Thermal Shock Performance of Al2O3/TiO2 Air Plasma Spray Coatings
This study aimed to understand the effect of TiO2 content on the thermal shock performance of Al2O3/TiO2 air plasma spray coatings. Three kinds of commercial feedstock powders were used, i.e. Al2O3, Al2O3-13wt%TiO2 and Al2O3-40wt%TiO2. The resulting coatings were studied in terms of micro Vickers hardness test, XRD, SEM and thermal shock test. The last was conducted using a water quenching method. The results showed that both the coating hardness and thermal shock performance decreased with the TiO2 content.
Liangchi Zhang, Chunliang Zhang and Zichen Chen
S. H. Yao et al., "Thermal Shock Performance of Al2O3/TiO2 Air Plasma Spray Coatings", Advanced Materials Research, Vols. 328-330, pp. 853-856, 2011