**5.3. Plasma-Enhanced Chemical Vapor Deposition (PECVD) method**

Thick, partially yttria-stabilized zirconia coatings have been deposited by plasma-enhanced chemical vapor deposition (PECVD) method. The morphology and phase composition of the coatings was studied after annealing treatments at the temperature range of 1,100 to 1,400°C up to 1,000 h. The as-deposited columnar morphology of the coating was similar to that observed in the coating prepared by the EBPVD technique. The PECVD method is suitable for developing TBCs as it provides thermally stable coating at elevated temperatures [27].
