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

doi:10.1016/j.ceramint.2019.10.215

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Effect of splat-interface discontinuity on effective thermal conductivity of plasma sprayed thermal barrier coating
	Qiu SY 1,2; Liu YC(刘彦池)1; Guo HB 2; Huang CG(黄晨光)1; Ma Y 2; Wu CW(吴臣武)1
刊名	CERAMICS INTERNATIONAL
	2020-03-01
卷号	46 期号:4 页码:4824-4831
关键词	Thermal barrier coatings Plasma spraying Interface discontinuity Thermal conductivity
ISSN号	0272-8842
DOI	10.1016/j.ceramint.2019.10.215
通讯作者	Ma, Yue(mayue@buaa.edu.cn) ; Wu, Chen-Wu(chenwuwu@imech.ac.cn)
英文摘要	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.
分类号	一类
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]
WOS关键词	MICROSTRUCTURE ; PORES ; MODEL
WOS研究方向	Materials Science
语种	英语
WOS记录号	WOS:000512219600094
资助机构	Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China
其他责任者	Ma, Yue ; Wu, Chen-Wu
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/81610]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.Beihang Univ BUAA, Sch Mat Sci & Engn, Beijing Key Lab Adv Funct Mat & Thin Film Technol, Beijing 100191, 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.
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.