About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Advanced Materials for Harsh Environments
|
| Presentation Title |
Effect of TiO2 Addition on the Hot Corrosion Behavior of Yttria-Stabilized Zirconia in the Presence of V2O5 for Thermal Barrier Coatings Application |
| Author(s) |
Nasirudeen Olalekan Ogunlakin, Nestor Ankah, Ihsan Ulhaq Toor |
| On-Site Speaker (Planned) |
Nasirudeen Olalekan Ogunlakin |
| Abstract Scope |
Understanding the hot corrosion behavior of thermal barrier coatings is crucial for assessing their performance and reliability in harsh operating environments, especially in the presence of impurities such as vanadium. In this study, the effect of TiO2 on the hot corrosion behavior of yttria-stabilized zirconia (8YSZ) exposed to vanadium pentoxide (V2O5) was investigated. Different TiO2 ratios (10-50 wt%) were tested. Results showed that TiO2 impedes the reaction between V2O5 and Y2O3, preventing the degradation of 8YSZ. This improvement is attributed to the formation of TiVO4 and the stabilizing effect of titanium on the tetragonal phase of 8YSZ. The observed degradation mechanisms align with the Lewis acid-base theory. |