Effect of splat-interface discontinuity on effective thermal conductivity of plasma sprayed thermal barrier coating

doi:10.1016/j.ceramint.2019.10.215

IMECH-IR > 流固耦合系统力学重点实验室

	Effect of splat-interface discontinuity on effective thermal conductivity of plasma sprayed thermal barrier coating
	Qiu SY 1,2; Liu YC(刘彦池)2 ; Guo HB 1; Huang CG(黄晨光)2 ; Ma Y1 ; Wu CW(吴臣武)2
通讯作者	Ma, Yue([email protected]) ; Wu, Chen-Wu([email protected])
发表期刊	CERAMICS INTERNATIONAL
	2020-03-01
卷号	46 期号:4 页码:4824-4831
ISSN	0272-8842
摘要	The thermal barrier coating obtained by atmospheric plasma spraying (APS TBCs) has a distinct lamellar microstructure, in which the splats discontinuous interfaces running parallel to the metal/ceramic interface contribute largely to the reduction in the effective thermal conductivity of APS TBCs. The dependency of such contribution on the topological structure of the interface discontinuity is investigated in the present work. Firstly, the concept of discontinuity of splats interfaces was defined to quantify - the splats discontinuous interfaces revealed by microscopic observations. Then, the microstructure model with a random distribution of discontinuous interfaces was established by utilizing the finite element simulation method to investigate the effect of interlayer discontinuity on thermal conductivity of the APS TBCs. Finally, an optimal topological structure of the interface discontinuity was found to be responsible for the lowest effective thermal conductivity of the APS TBCs and typical parametrical tendencies demonstrated.
关键词	Thermal barrier coatings Plasma spraying Interface discontinuity Thermal conductivity
DOI	10.1016/j.ceramint.2019.10.215
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000512219600094
关键词[WOS]	MICROSTRUCTURE ; PORES ; MODEL
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDA17030100] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA17030200] ; National Natural Science Foundation of China[11572327] ; National Natural Science Foundation of China[U1537212] ; National Natural Science Foundation of China[51471019]
项目资助者	Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China
论文分区	一类
力学所作者排名	1
RpAuthor	Ma, Yue ; Wu, Chen-Wu
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/81611
专题	流固耦合系统力学重点实验室
作者单位	1.Beihang Univ BUAA, Sch Mat Sci & Engn, Beijing Key Lab Adv Funct Mat & Thin Film Technol, Beijing 100191, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Qiu SY,Liu YC,Guo HB,et al. Effect of splat-interface discontinuity on effective thermal conductivity of plasma sprayed thermal barrier coating[J]. CERAMICS INTERNATIONAL,2020,46,4,:4824-4831.Rp_Au:Ma, Yue, Wu, Chen-Wu
APA	Qiu SY,刘彦池,Guo HB,黄晨光,Ma Y,&吴臣武.(2020).Effect of splat-interface discontinuity on effective thermal conductivity of plasma sprayed thermal barrier coating.CERAMICS INTERNATIONAL,46(4),4824-4831.
MLA	Qiu SY,et al."Effect of splat-interface discontinuity on effective thermal conductivity of plasma sprayed thermal barrier coating".CERAMICS INTERNATIONAL 46.4(2020):4824-4831.

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