Abstract
Double-ceramic-layer (DCL) coatings with various thickness ratios composed of YSZ (6-8 wt.% Y{sub 2}O{sub 3} + ZrO{sub 2}) and lanthanum zirconate (LZ, La{sub 2}Zr{sub 2}O{sub 7}) were produced by the atmospheric plasma spraying. Chemical stability of LZ in contact with YSZ in DCL coatings was investigated by calcining powder blends at different temperatures. No obvious reaction was observed when the calcination temperature was lower than 1250 deg. C, implying that LZ and YSZ had good chemical applicability for producing DCL coating. The thermal cycling test indicate that the cycling lives of the DCL coatings are strongly dependent on the thickness ratio of LZ and YSZ, and the coatings with YSZ thickness between 150 and 200 {mu}m have even longer lives than the single-layer YSZ coating. When the YSZ layer is thinner than 100 {mu}m, the DCL coatings failed in the LZ layer close to the interface of YSZ layer and LZ layer. For the coatings with the YSZ thickness above 150 {mu}m, the failure mainly occurs at the interface of the YSZ layer and the bond coat.
Hui, Dai;
[1]
Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)];
Xinghua, Zhong;
[1]
Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)];
Jiayan, Li;
[1]
Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)];
Yanfei, Zhang;
[1]
Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)];
Jian, Meng;
[1]
Xueqiang, Cao
[1]
- Key Lab of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin (China)
Citation Formats
Hui, Dai, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Xinghua, Zhong, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Jiayan, Li, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Yanfei, Zhang, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Jian, Meng, and Xueqiang, Cao.
Thermal stability of double-ceramic-layer thermal barrier coatings with various coating thickness.
Netherlands: N. p.,
2006.
Web.
doi:10.1016/j.msea.2006.04.075.
Hui, Dai, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Xinghua, Zhong, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Jiayan, Li, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Yanfei, Zhang, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Jian, Meng, & Xueqiang, Cao.
Thermal stability of double-ceramic-layer thermal barrier coatings with various coating thickness.
Netherlands.
https://doi.org/10.1016/j.msea.2006.04.075
Hui, Dai, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Xinghua, Zhong, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Jiayan, Li, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Yanfei, Zhang, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Jian, Meng, and Xueqiang, Cao.
2006.
"Thermal stability of double-ceramic-layer thermal barrier coatings with various coating thickness."
Netherlands.
https://doi.org/10.1016/j.msea.2006.04.075.
@misc{etde_20918667,
title = {Thermal stability of double-ceramic-layer thermal barrier coatings with various coating thickness}
author = {Hui, Dai, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Xinghua, Zhong, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Jiayan, Li, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Yanfei, Zhang, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Jian, Meng, and Xueqiang, Cao}
abstractNote = {Double-ceramic-layer (DCL) coatings with various thickness ratios composed of YSZ (6-8 wt.% Y{sub 2}O{sub 3} + ZrO{sub 2}) and lanthanum zirconate (LZ, La{sub 2}Zr{sub 2}O{sub 7}) were produced by the atmospheric plasma spraying. Chemical stability of LZ in contact with YSZ in DCL coatings was investigated by calcining powder blends at different temperatures. No obvious reaction was observed when the calcination temperature was lower than 1250 deg. C, implying that LZ and YSZ had good chemical applicability for producing DCL coating. The thermal cycling test indicate that the cycling lives of the DCL coatings are strongly dependent on the thickness ratio of LZ and YSZ, and the coatings with YSZ thickness between 150 and 200 {mu}m have even longer lives than the single-layer YSZ coating. When the YSZ layer is thinner than 100 {mu}m, the DCL coatings failed in the LZ layer close to the interface of YSZ layer and LZ layer. For the coatings with the YSZ thickness above 150 {mu}m, the failure mainly occurs at the interface of the YSZ layer and the bond coat.}
doi = {10.1016/j.msea.2006.04.075}
journal = []
issue = {1-2}
volume = {433}
place = {Netherlands}
year = {2006}
month = {Oct}
}
title = {Thermal stability of double-ceramic-layer thermal barrier coatings with various coating thickness}
author = {Hui, Dai, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Xinghua, Zhong, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Jiayan, Li, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Yanfei, Zhang, Graduate School of Chinese Academy of Sciences, Beijing 100049 (China)], Jian, Meng, and Xueqiang, Cao}
abstractNote = {Double-ceramic-layer (DCL) coatings with various thickness ratios composed of YSZ (6-8 wt.% Y{sub 2}O{sub 3} + ZrO{sub 2}) and lanthanum zirconate (LZ, La{sub 2}Zr{sub 2}O{sub 7}) were produced by the atmospheric plasma spraying. Chemical stability of LZ in contact with YSZ in DCL coatings was investigated by calcining powder blends at different temperatures. No obvious reaction was observed when the calcination temperature was lower than 1250 deg. C, implying that LZ and YSZ had good chemical applicability for producing DCL coating. The thermal cycling test indicate that the cycling lives of the DCL coatings are strongly dependent on the thickness ratio of LZ and YSZ, and the coatings with YSZ thickness between 150 and 200 {mu}m have even longer lives than the single-layer YSZ coating. When the YSZ layer is thinner than 100 {mu}m, the DCL coatings failed in the LZ layer close to the interface of YSZ layer and LZ layer. For the coatings with the YSZ thickness above 150 {mu}m, the failure mainly occurs at the interface of the YSZ layer and the bond coat.}
doi = {10.1016/j.msea.2006.04.075}
journal = []
issue = {1-2}
volume = {433}
place = {Netherlands}
year = {2006}
month = {Oct}
}