Evolution of Hot Corrosion Behavior of YSZ‐Ta2O5 Composites with Different YSZ/Ta2O5 Ratios. (21st January 2014)

• Record Type: Journal Article
• Authors: Habibi, Hamed; Guo, Shengmin
• Is Part Of: International journal of applied ceramic technology. Volume 12:(2015)Supplement 3
• Page Start: 542
• Page End: 550
• Publication Date: 2014-01-21
• Subjects: Ceramics -- Periodicals; Ceramics -- Technological innovations -- Periodicals; 620.1405
• DOI: 10.1111/ijac.12224
• Languages: English
• ISSNs: 1546-542X

Abstract

Abstract : This study compares the hot corrosion performance of yttria‐stabilized zirconia (YSZ)‐Ta2 O5 composite mixtures (TaYSZ) in the presence of molten mixture of Na2 SO4 + V2 O5 at 1100°C. The tested compositions vary from pure YSZ (0TaYSZ) to a Ta2 O5 ‐dominating (70 wt% Ta2 O5 + balance YSZ, 70TaYSZ) composite mixture with a gradual increase of Ta2 O5 . 50TaYSZ (50 wt% Ta2 O5 + balance YSZ) sample forms a highly stable zirconium tantalum oxide. 50TaYSZ is more stable, both thermally and chemically in Na2 SO4 +V2 O5 media at 1100°C, than other tested YSZ‐Ta2 O5 (TaYSZ) composites, and shows a good hot corrosion resistance.