Study On Thermal Fatigue Behaviour Of Plasma Sprayed Yttria-Zirconia Thermal Barrier Coatings (TBCS) Systems On Aluminium Alloy
Abstract: Yttria stabilized zirconia (YSZ) thermal barrier coatings (TBCs) systems were fabricated by plasma spray process
on 2024 aluminium alloys (AA). Thermal fatigue behaviour of as sprayed TBCs systems at 6000
C was studied. The results
indicated that cracking was only responsible for thermal fatigue failure mode. The failures of YSZ TBCs systems on
2024AA were observed due to the multiple cracks mode only. The results shows four types of cracks were formed in TBCs
systems on 2024 AA, i.e., vertical cracks, horizontal crack, propagating crack, and penetrating crack.