中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 力学研究所
  3. 中国科学院力学研究所
  4. 流固耦合系统力学重点实验室(2012-)
Microstructure Dependence of Effective Thermal Conductivity of EB-PVD TBCs

文献类型：期刊论文

作者Qiu, Shi-Yi1,2; Wu, Chen-Wu1; Huang, Chen-Guang1; Ma, Yue2; Guo, Hong-Bo2; Wu CW(吴臣武); Huang CG(黄晨光)
刊名MATERIALS
出版日期2021-04-01
卷号14期号:8页码:17
关键词thermal barrier coatings electron beam physical vapor deposition thermal conductivity finite element simulation
DOI10.3390/ma14081838
通讯作者Wu, Chen-Wu(chenwuwu@imech.ac.cn) ; Ma, Yue(mayue@buaa.edu.cn)
英文摘要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.
WOS关键词PHYSICAL VAPOR-DEPOSITION ; BARRIER COATINGS ; THERMOPHYSICAL PROPERTIES ; ZIRCONIA ; TEMPERATURE ; GROWTH ; 7YSZ
资助项目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]
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
语种英语
WOS记录号WOS:000644524200001
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences
源URL[http://dspace.imech.ac.cn/handle/311007/86587]  
专题力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者Wu, Chen-Wu; Ma, Yue
作者单位1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
2.Beihang Univ BUAA, Beijing Key Lab Adv Funct Mat & Thin Film Technol, Sch Mat Sci & Engn, Beijing 100191, Peoples R China
推荐引用方式
GB/T 7714		 Qiu, Shi-Yi,Wu, Chen-Wu,Huang, Chen-Guang,et al. Microstructure Dependence of Effective Thermal Conductivity of EB-PVD TBCs[J]. MATERIALS,2021,14(8):17.
APA Qiu, Shi-Yi.,Wu, Chen-Wu.,Huang, Chen-Guang.,Ma, Yue.,Guo, Hong-Bo.,...&黄晨光.(2021).Microstructure Dependence of Effective Thermal Conductivity of EB-PVD TBCs.MATERIALS,14(8),17.
MLA Qiu, Shi-Yi,et al."Microstructure Dependence of Effective Thermal Conductivity of EB-PVD TBCs".MATERIALS 14.8(2021):17.

入库方式： OAI收割

来源：力学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。