| Microstructure Dependence of Effective Thermal Conductivity of EB-PVD TBCs | |
Qiu SY(邱世毅)1,2; Wu CW(吴臣武)2 ; Huang CG(黄晨光)2; Ma, Yue1; Guo, Hong-Bo1
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| Corresponding Author | Wu, Chen-Wu([email protected]) ; Ma, Yue([email protected]) |
| Source Publication | MATERIALS
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| 2021-04-01 | |
| Volume | 14Issue:8Pages:17 |
| Abstract | Microstructure dependence of effective thermal conductivity of the coating was investigated to optimize the thermal insulation of columnar structure electron beam physical vapor deposition (EB-PVD coating), considering constraints by mechanical stress. First, a three-dimensional finite element model of multiple columnar structure was established to involve thermal contact resistance across the interfaces between the adjacent columnar structures. Then, the mathematical formula of each structural parameter was derived to demonstrate the numerical outcome and predict the effective thermal conductivity. After that, the heat conduction characteristics of the columnar structured coating was analyzed to reveal the dependence of the effective thermal conductivity of the thermal barrier coatings (TBCs) on its microstructure characteristics, including the column diameter, the thickness of coating, the ratio of the height of fine column to coarse column and the inclination angle of columns. Finally, the influence of each microstructural parameter on the mechanical stress of the TBCs was studied by a mathematic model, and the optimization of the inclination angle was proposed, considering the thermal insulation and mechanical stress of the coating. |
| Keyword | thermal barrier coatings electron beam physical vapor deposition thermal conductivity finite element simulation |
| DOI | 10.3390/ma14081838 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000644524200001 |
| WOS Keyword | PHYSICAL VAPOR-DEPOSITION ; BARRIER COATINGS ; THERMOPHYSICAL PROPERTIES ; ZIRCONIA ; TEMPERATURE ; GROWTH ; 7YSZ |
| WOS Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter |
| Funding Project | National Natural Science Foundation of China[11572327] ; National Natural Science Foundation of China[51971013] ; National Natural Science Foundation of China[U1537212] ; National Natural Science Foundation of China[51471019] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA17030100] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA17030200] |
| Funding Organization | National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Wu, Chen-Wu ; Ma, Yue |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/86588 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Beihang Univ BUAA, Beijing Key Lab Adv Funct Mat & Thin Film Technol, Sch Mat Sci & Engn, Beijing 100191, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Qiu SY,Wu CW,Huang CG,et al. Microstructure Dependence of Effective Thermal Conductivity of EB-PVD TBCs[J]. MATERIALS,2021,14,8,:17.Rp_Au:Wu, Chen-Wu, Ma, Yue |
| APA | 邱世毅,吴臣武,黄晨光,Ma, Yue,&Guo, Hong-Bo.(2021).Microstructure Dependence of Effective Thermal Conductivity of EB-PVD TBCs.MATERIALS,14(8),17. |
| MLA | 邱世毅,et al."Microstructure Dependence of Effective Thermal Conductivity of EB-PVD TBCs".MATERIALS 14.8(2021):17. |
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| Jp2021200.pdf（5338KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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