|Interface delamination of the thermal barrier coating subjected to local heating|
|Wu CW(吴臣武); Huang CG(黄晨光); Chen GN(陈光南)
|Source Publication||Science China Technological Sciences
|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.|
|WOS Research Area||Engineering
; Materials Science
|WOS Subject||Engineering, Multidisciplinary
; Materials Science, Multidisciplinary
|Corresponding Author||Wu CW(吴臣武)|
Wu CW,Huang CG,Chen GN. Interface delamination of the thermal barrier coating subjected to local heating[J]. Science China Technological Sciences,2010,53(12):3168-3174.
吴臣武,黄晨光,&陈光南.(2010).Interface delamination of the thermal barrier coating subjected to local heating.Science China Technological Sciences,53(12),3168-3174.
吴臣武,et al."Interface delamination of the thermal barrier coating subjected to local heating".Science China Technological Sciences 53.12(2010):3168-3174.