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Thermal Stability of YSZ Coatings Deposited by Plasma Spray-Physical Vapor Deposition
Cheng, Zefei; Yang, Jiasheng; Shao, Fang; Zhong, Xinghua; Zhao, Huayu; Zhuang, Yin; Ni, Jinxing; Tao, Shunyan
2019-08-01
Source PublicationCOATINGS
Volume9Issue:8
SubtypeArticle
AbstractThe plasma spray-physical vapor deposition (PS-PVD) process has received considerable attention due to its non-line of sight deposition ability, high deposition rates, and cost efficiency. Compared with electron beam-physical vapor deposition (EB-PVD), PS-PVD can also prepare thermal barrier coatings (TBCs) with columnar microstructures. In this paper, yttria-stabilized zirconia (YSZ) coatings were fabricated by PS-PVD. Results showed that the as-deposited coating presented a typical columnar structure and was mainly composed of metastable tetragonal (t '-ZrO2) phase. With thermal exposure, the initial t ' phase of YSZ evolved gradually into monoclinic (m-ZrO2) phase. Significant increase in hardness (H) and the Young's modulus (E) of the coating was attributed to the sintering effect of the coating during the thermal exposure, dependent on exposure temperature and time. However, the values of H and E decreased in the coatings thermally treated at 1300-1500 degrees C for 24 h, which is mainly affected by the formation of m-ZrO2 phase.
Keywordplasma spray-physical vapor deposition thermal stability thermal barrier coatings
DOI10.3390/coatings9080464
Language英语
WOS Research AreaMaterials Science
PublisherMDPI
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26927
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Cheng, Zefei,Yang, Jiasheng,Shao, Fang,et al. Thermal Stability of YSZ Coatings Deposited by Plasma Spray-Physical Vapor Deposition[J]. COATINGS,2019,9(8).
APA Cheng, Zefei.,Yang, Jiasheng.,Shao, Fang.,Zhong, Xinghua.,Zhao, Huayu.,...&Tao, Shunyan.(2019).Thermal Stability of YSZ Coatings Deposited by Plasma Spray-Physical Vapor Deposition.COATINGS,9(8).
MLA Cheng, Zefei,et al."Thermal Stability of YSZ Coatings Deposited by Plasma Spray-Physical Vapor Deposition".COATINGS 9.8(2019).
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