Author(s): , , , , ,

Keywords: , , , , , , , , , , , , , , ,

Abstract: In order to prepare more thermally resistant materials for use as thermal barrier coatings, the authors performed experiments on yttrium stabilized-zirconia (7YSZ) in order to investigate sintering resistance and phase stability at high temperatures. It was theorized that the main factor that affected the sintering resistance and phase stability at high temperatures was the concentration of impurities (Al2O3 and Si2O) present in the 7YSZ. Therefore in this report the aforementioned properties were studied with 7YSZ samples of varying purity. It was confirmed that using 7YSZ of the highest purity resulted in more favorable thermo-physical properties at high temperatures (1400 °C).

Reference: Journal of Thermal Spray Technology, 16, 5-6 (2007) 804-808

DOI: 10.1007/s11666-007-9079-7