Improvement in hot corrosion resistance and chemical stability of YSZ by introducing a Lewis neutral layer on thermal barrier coatings

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초록

A boron-doped silica (B-SiO2) layer was coated on the surface of conventional plasma-sprayed yttria-stabilized zirconia (YSZ) coating to improve the hot corrosion resistance and chemical stability against Na2SO4 + V2O5 salts by glassification based on sol-gel process. The YSZ surface was successfully covered by the glassificated B-SiO2 with Lewis neutrality. Further destabilization of YSZ was prevented by the formation of a solid solution. Consequently, the B-SiO2 layer improved the hot corrosion resistance and chemical stability of YSZ.

키워드

Hot corrosionProtection layerThermal barrier coatings (TBC)Reaction mechanismOXIDATION BEHAVIORZIRCONIAAL2O3DENSEASH
제목
Improvement in hot corrosion resistance and chemical stability of YSZ by introducing a Lewis neutral layer on thermal barrier coatings
저자
Song, DowonSong, TaeseupPaik, UngyuLyu, GuanlinKim, JunseongJung, Yeon-Gil
DOI
10.1016/j.corsci.2020.108776
발행일
2020-08
유형
Article
저널명
Corrosion Science
173
페이지
1 ~ 9