Effect of ceramic coating thickness on fracture behaviour of coating structure under thermal shock cycles

doi:10.1016/j.ceramint.2021.12.368

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Effect of ceramic coating thickness on fracture behaviour of coating structure under thermal shock cycles
	Liang LH(梁立红)3; Liu XH 2; Chen LF 3; Wei YG(魏悦广)1
刊名	CERAMICS INTERNATIONAL
	2022-04-15
卷号	48 期号:8 页码:11435-11444
关键词	Coatings Thermal shock Fracture Thickness Stress
ISSN号	0272-8842
DOI	10.1016/j.ceramint.2021.12.368
通讯作者	Liang, L. H.(lianglh@mail.buct.edu.cn)
英文摘要	Ceramic coatings are commonly used to fulfil some form of protection function, such as thermal protection, electric isolation, or corrosion resistance. However, coating failure caused by mechanical mechanisms can reduce the effectiveness of these functions. In this study, the effect of the coating thickness of thermal barrier coatings on fracture behaviour was investigated to understand its importance and the related mechanical mechanisms. Thermal shock cycling experiments were conducted with a corresponding stress analysis based on the finite element method. The results indicate that coatings thicker than 300 pm are more likely to fail after a low number of cycles, the number of cycles at the failure of 500 pm coatings is only 16.6% of that of 100 pm coatings, and the underlying mechanism can be explained as the larger compressive stress influence of thicker coatings. The residual compressive stress increased to 125 MPa only after ten cycles for 300 pm coatings.
分类号	一类
资助项目	National Natural Science Foundation of China[91860102] ; National Natural Science Foundation of China[12172035] ; National Natural Science Foundation of China[92160203] ; Fundamental Research Funds for the Central Universities of China[buctrc201930] ; National Key Laboratory of Science and Technology on Advanced Composites in Special Environ-ments, Harbin Institute of Technology[6142905180110]
WOS关键词	BARRIER COATINGS ; STRESS-DISTRIBUTION ; CYCLING BEHAVIOR ; LAYER THICKNESS ; OXIDE THICKNESS ; BOND COAT ; MICROSTRUCTURE ; DELAMINATION ; RESISTANCE ; EVOLUTION
WOS研究方向	Materials Science
语种	英语
WOS记录号	WOS:000782118100001
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities of China ; National Key Laboratory of Science and Technology on Advanced Composites in Special Environ-ments, Harbin Institute of Technology
其他责任者	Liang, L. H.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/88874]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Peking Univ, Coll Engn, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China; 3.Beijing Univ Chem Technol, Coll Mech & Elect Engn, Beijing Key Lab Hlth Monitoring & Selfrecovery Hi, Beijing 100029, Peoples R China;
推荐引用方式 GB/T 7714	Liang LH,Liu XH,Chen LF,et al. Effect of ceramic coating thickness on fracture behaviour of coating structure under thermal shock cycles[J]. CERAMICS INTERNATIONAL,2022,48(8):11435-11444.
APA	梁立红,Liu XH,Chen LF,&魏悦广.(2022).Effect of ceramic coating thickness on fracture behaviour of coating structure under thermal shock cycles.CERAMICS INTERNATIONAL,48(8),11435-11444.
MLA	梁立红,et al."Effect of ceramic coating thickness on fracture behaviour of coating structure under thermal shock cycles".CERAMICS INTERNATIONAL 48.8(2022):11435-11444.