“…Water vapor is present in almost every environment unless precautions are taken to eliminate it (Onal et al, 2003). There is an increasing interest in understanding the role of water vapor in the high-temperature degradation behavior of structural materials subjected to aggressive environments (Onal et al, 2003;Opila, 2004;Ehlers et al, 2006;Young, 2008;Pint et al, 2012;Unocic et al, 2012;Unocic & Pint, 2013a, 2013bGleeson, 2018;Mortazavi et al, 2018;Xie et al, 2019 ). For example, thermal barrier coatings are used to protect turbine blades from hightemperature degradation.…”