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Title:
Interface delamination of the thermal barrier coating subjected to local heating
Author: Wu CW(吴臣武); Huang CG(黄晨光); Chen GN(陈光南)
Source: Science China Technological Sciences
Issued Date: 2010
Volume: 53, Issue:12, Pages:3168-3174
Abstract: To investigate the possible failure modes of the thermal barrier coating (TBC) used to protect the scramjet combustion chamber, the local heating via laser beam irradiation was utilized to simulate the service condition of high thermal flux and high temperature gradient. Firstly, the experimental method and process were described and the typical fracture morphology of the TBC under test were provided. Then, the theoretical and finite element modeling were carried out to study the temperature, deformation and stresses of the specimen when the top ceramic coat was subjected to local heating, and to demonstrate the mechanism on the failure of the TBC. It is revealed that the interface delamination shall appear and ultimately lead to the failure of the TBC under such thermal loading of local quick heating. According to the outcome of this study, the driving force of the interface delamination is influenced greatly by the key structural parameters and performance matching. Moreover, by utilizing the rules of the effects of these parameters on the fracture driving force, there is some possibility for the designer to optimize the performances of the TBC.
Keyword: TBC, local heating, interface delamination, FE modeling
Language: 英语
Indexed Type: SCI
Corresponding Author: 吴臣武
Correspondent Email: chenwuwu@imech.ac.cn
DOI: 10.1007/s11431-010-4160-8
DOC Type: Article
WOS Subject: Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
WOS Subject Extended: Engineering ; Materials Science
WOS ID: WOS:000284646700003
ISSN: 1674-7321
Subject: 固体力学::制造工艺力学
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/43268
Appears in Collections:先进制造工艺力学重点实验室_期刊论文

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Recommended Citation:
Wu CW,Huang CG,Chen GN. Interface delamination of the thermal barrier coating subjected to local heating[J]. Science China Technological Sciences,2010-01-01,53(12):3168-3174.
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