The effect of SiC particles on thermal shock behavior of Al2O3/8YSZ coatings fabricated by atmospheric plasma spraying

► Effect of SiC on thermal shock behavior of Al2O3/8YSZ coatings. ► Formation of silicate fiber is beneficial to thermal shock resistance. ► Growth pattern of the silicate fibers is analyzed. ► Thermodynamic condition of aluminum silicate is analyzed. ► Failure mechanism is analyzed in detail.