Comparative study on thermal shock behavior of thick thermal barrier coatings fabricated with nano-based YSZ suspension and agglomerated particles

2016 ◽  
Vol 42 (10) ◽  
pp. 12172-12179 ◽  
Author(s):  
Minglong Zhai ◽  
Dachuan Li ◽  
Yuexing Zhao ◽  
Xinghua Zhong ◽  
Fang Shao ◽  
...  
Keyword(s):  
Comparative Study ◽  
Thermal Shock ◽  
Thermal Barrier Coatings ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Thermal Shock Behavior

Thermal shock behavior of EB-PVD thermal barrier coatings

2007 ◽  
Vol 201 (16-17) ◽  
pp. 7387-7391 ◽  
Author(s):  
Meiheng Li ◽  
Xiaofeng Sun ◽  
Wangyu Hu ◽  
Hengrong Guan
Keyword(s):  
Thermal Shock ◽  
Thermal Barrier Coatings ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Thermal Shock Behavior

Investigation of Thermal Shock Behavior of Plasma-Sprayed NiCoCrAlY/YSZ Thermal Barrier Coatings

2012 ◽  
Vol 472-475 ◽  
pp. 246-250 ◽  
Author(s):  
Hossein Jamali ◽  
Reza Mozafarinia ◽  
Reza Shoja Razavi ◽  
Raheleh Ahmadi Pidani
Keyword(s):  
Thermal Shock ◽  
Thermal Barrier Coatings ◽  
Atmospheric Plasma ◽  
Thermal Barrier ◽  
Thermal Shock Test ◽  
Barrier Coatings ◽  
Microstructural Evaluation ◽  
Mismatch Stress ◽  
Thermal Shock Behavior ◽  
Plasma Sprayed

ZrO2-8wt.%Y2O3 (8YSZ) thermal barrier coatings (TBCs) were deposited by atmospheric plasma spraying (APS) on NiCoCrAlY-coated Inconel 738LC substrates. The thermal shock behavior was investigated by quenching the samples in water with temperature of 20-25°C from 950°C. To study of failure mechanism results from thermal cycling, microstructural evaluation using scanning electron microscope (SEM), elemental analysis using energy dispersive spectroscopy (EDS) and phasic analysis using x-ray diffractometry (XRD) were done. The results revealed that failure of the TBC system was due to the spallation of ceramic top coat. Thermal mismatch stress was the major factor of TBC failure in thermal shock test.

Sign in / Sign up

Export Citation Format

Share Document