Effects of surface roughness on CMAS wetting and corrosion behaviour of rare earth modified zirconia coatings

doi:10.1016/j.ceramint.2023.11.054

IMR OpenIR

	Effects of surface roughness on CMAS wetting and corrosion behaviour of rare earth modified zirconia coatings
	Zou, Lanxin 1,2; Chang, Hui 1; Qin, Shuang 1,2; Cui, Fengjing 1; Wang, Junzhe 1; Zhang, Jia 1; Gao, Minghao 1; Xu, Na 1
通讯作者	Gao, Minghao(mhgao15b@imr.ac.cn) ; Xu, Na(naxu@imr.ac.cn)
	2024-01-15
发表期刊	CERAMICS INTERNATIONAL
ISSN	0272-8842
卷号	50 期号:2 页码:3064-3073
摘要	CaO-MgO-Al2O3-SiO2 (CMAS) poses a severe challenge to the thermal barrier coatings (TBCs) of aviation engines and has attracted much attention. In this study, nanostructured yttria-stabilized zirconia (NYSZ) and multicomponent rare-earth oxides modified zirconia (MSZ) coatings were prepared using atmospheric plasma spraying (APS). The effects of different surface roughness on CMAS wetting and corrosion behaviour of the two types of coatings were investigated by adjusting the surface roughness and conducting CMAS corrosion experiments at 1250 degrees C. Results revealed that the contact angles between CMAS and the coatings increase with decreasing surface roughness, highlighting the important role of reducing the coating roughness for higher CMAS wettability resistance and corrosion resistance. In addition, MSZ coatings exhibit superior CMAS wettability resistance and corrosion resistance relative to NYSZ coatings due to the smaller specific surface area. These findings provide valuable design guidance for the optimization of the microstructure and composition of TBCs to enhance CMAS corrosion resistance.
关键词	Thermal barrier coatings CMAS corrosion Nanostructured yttria-stabilized zirconia Multi-component rare -earth oxides modified zirconia Surface roughness
资助者	Key Research Program of the Chinese Academy of Sciences ; IMR Innovation Fund ; Integrated Manufacturing Technology for Large-scale Heterogeneous Monolithic Structures
DOI	10.1016/j.ceramint.2023.11.054
收录类别	SCI
语种	英语
资助项目	Key Research Program of the Chinese Academy of Sciences[ZDRW-CN-2021-2-2] ; IMR Innovation Fund[2022-PY08] ; Integrated Manufacturing Technology for Large-scale Heterogeneous Monolithic Structures[JCKY2021204A004]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:001132306200001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/183179
专题	中国科学院金属研究所
通讯作者	Gao, Minghao; Xu, Na
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zou, Lanxin,Chang, Hui,Qin, Shuang,et al. Effects of surface roughness on CMAS wetting and corrosion behaviour of rare earth modified zirconia coatings[J]. CERAMICS INTERNATIONAL,2024,50(2):3064-3073.
APA	Zou, Lanxin.,Chang, Hui.,Qin, Shuang.,Cui, Fengjing.,Wang, Junzhe.,...&Xu, Na.(2024).Effects of surface roughness on CMAS wetting and corrosion behaviour of rare earth modified zirconia coatings.CERAMICS INTERNATIONAL,50(2),3064-3073.
MLA	Zou, Lanxin,et al."Effects of surface roughness on CMAS wetting and corrosion behaviour of rare earth modified zirconia coatings".CERAMICS INTERNATIONAL 50.2(2024):3064-3073.