High-growth rate YSZ thermal barrier coatings deposited by MOCVD demonstrate high thermal cycling lifetime

▶ Use of thermochemical analysis to optimize stoichiometric ratios prior to experiments. ▶ Thermodynamic analysis included a YO1.5-ZrO2 phase diagram to better describe solid solutions of YSZ. ▶ Experimental growth resulted in high growth rate coatings with a columnar microstructure. ▶ Coatings endured 1000 1-h thermal cycles (comparable to the lifetime of commercially viable EBPVD YSZ coating) with a much lower cost of fabrication.