Classification of defects in a thermal barrier coating layer using the fuzzy C-means algorithm

2015 ◽  
Vol 16 (1) ◽  
pp. 53-57 ◽  
Author(s):  
Pyeong-Ho Kim ◽  
Jeong-Suk Kim ◽  
Jin-Hyo Park ◽  
Ku-Hyeun Lee ◽  
Yo-Seung Song ◽  
...  
Keyword(s):  
Thermal Barrier Coating ◽  
Coating Layer ◽  
Thermal Barrier ◽  
Fuzzy C Means ◽  
Barrier Coating ◽  
Fuzzy C Means Algorithm

scholarly journals Crack Initiation Strength of Thermal Barrier Coating Layer under Thermal Shock.

2001 ◽  
Vol 50 (3) ◽  
pp. 297-302 ◽  
Author(s):  
Masayuki ARAI ◽  
Toshio SAKUMA ◽  
Uichi IWATA ◽  
Masahiro SAITOH
Keyword(s):  
Crack Initiation ◽  
Thermal Shock ◽  
Thermal Barrier Coating ◽  
Coating Layer ◽  
Thermal Barrier ◽  
Barrier Coating

Mechanisms of Degradation and Failure in a Plasma-Deposited Thermal Barrier Coating

1990 ◽  
Vol 112 (4) ◽  
pp. 521-526 ◽  
Author(s):  
J. T. DeMasi-Marcin ◽  
K. D. Sheffler ◽  
S. Bose
Keyword(s):  
Thermal Barrier Coating ◽  
Damage Accumulation ◽  
Ceramic Coating ◽  
Coating Layer ◽  
Thermal Exposure ◽  
Ceramic Layer ◽  
Constitutive Behavior ◽  
Thermal Barrier ◽  
Accumulation Process ◽  
Barrier Coating

Failure of a two-layer plasma-deposited thermal barrier coating is caused by cyclic thermal exposure and occurs by spallation of the outer ceramic layer. Spallation life is quantitatively predictable, based on the severity of cyclic thermal exposure. This paper describes and attempts to explain unusual constitutive behavior observed in the insulative ceramic coating layer, and presents details of the ceramic cracking damage accumulation process, which is responsible for spallation failure. Comments also are offered to rationalize the previously documented influence of interfacial oxidation on ceramic damage accumulation and spallation life.

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