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A novel long-life cerium lanthanum zirconate thermal barrier coating controlled by designed portholes
Yang, Ming1,2; Zhu, Yongping1; Wang, Xueying1; Zhao, Lili1; Chu, Ying1; Guo, Shengnan1,2; Hu, Jing1,2; Zhang, Qing1,2
2018-09-15
Source PublicationSURFACE & COATINGS TECHNOLOGY
ISSN0257-8972
Volume349Pages:407-414
Abstract

Cerium lanthanum zirconate ceramic is hopeful to be the next generation of thermal barrier coatings, but the thermal stress and deformation will shorten the working life. In this paper, the two dimensional geometric models based on possible designed porthole were implemented to simulate the real thermal ablation. Afterwards, the influence of shapes of portholes on the distribution of coating temperature, displacement along the interface between the bond layer and the top layer, XY-shear stress and von-Mises stress was carried out to verify the above numerical calculations. The temperature results show cerium lanthanum zirconate ceramic can protect superalloy at the working condition of 1600 degrees C well. The Y displacement between the bond and ceramics layer was used to measure the peeling of top layer after the thermal ablation. The stress caused by the difference of deformation rate was used to predict the most dangerous area. All the results reveal that the semi-circle porthole is the best choice for extending the working time.

KeywordThermal Stress Failure Analysis Cracking Heat Transfer Finite Element Method
DOI10.1016/j.surfcoat.2018.05.059
Language英语
WOS KeywordPhysical Vapor-deposition ; Finite-element Simulation ; Thermophysical Properties ; Conductivity ; La2zr2o7 ; Stress ; Microstructure ; Performance ; Pyrochlore ; Stability
Funding ProjectNational Natural Science Foundation of China[51202247] ; Open Fund of State Key Laboratory of Multiphase Complex Systems[MPCS-2014-D-13]
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Coatings & Films ; Physics, Applied
Funding OrganizationNational Natural Science Foundation of China ; Open Fund of State Key Laboratory of Multiphase Complex Systems
WOS IDWOS:000441492600043
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/25640
Collection中国科学院过程工程研究所
Corresponding AuthorZhu, Yongping; Wang, Xueying
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Yang, Ming,Zhu, Yongping,Wang, Xueying,et al. A novel long-life cerium lanthanum zirconate thermal barrier coating controlled by designed portholes[J]. SURFACE & COATINGS TECHNOLOGY,2018,349:407-414.
APA Yang, Ming.,Zhu, Yongping.,Wang, Xueying.,Zhao, Lili.,Chu, Ying.,...&Zhang, Qing.(2018).A novel long-life cerium lanthanum zirconate thermal barrier coating controlled by designed portholes.SURFACE & COATINGS TECHNOLOGY,349,407-414.
MLA Yang, Ming,et al."A novel long-life cerium lanthanum zirconate thermal barrier coating controlled by designed portholes".SURFACE & COATINGS TECHNOLOGY 349(2018):407-414.
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