Review on Self-Healing Thermal Barrier Coatings for Space Applications

2021 ◽  
Vol 10 (1) ◽  
pp. 20210062
Author(s):  
S. G. K. Manikandan ◽  
M. Kamaraj ◽  
C. Jebasihamony
2018 ◽  
Vol 38 (12) ◽  
pp. 4268-4275 ◽  
Author(s):  
Justyna Kulczyk-Malecka ◽  
Xun Zhang ◽  
James Carr ◽  
Franck Nozahic ◽  
Claude Estournès ◽  
...  

2016 ◽  
Vol 656 ◽  
pp. 992-1003 ◽  
Author(s):  
Taoyuan Ouyang ◽  
Jinyang Wu ◽  
Muhammad Yasir ◽  
Tong Zhou ◽  
Xuanwei Fang ◽  
...  

Author(s):  
Mohammad Hassanzadeh ◽  
Mohsen Saremi ◽  
Zia Valefi ◽  
Amir Hossein Pakseresht

Concurrent with the development of new generation of gas turbines, many attempts have been made to introduce advanced thermal barrier coatings with lower thermal conductivity and higher temperature stability. Most of the research to improve TBCs performance are based on two general approaches: structural modifications and chemical modifications. In most cases, the improvements in some properties are at the expense of loss of some other properties. Changing in the TBCs architecture and the application of multilayer coatings, consisting of layers with engineered properties based on the requirements, is a solution to achieve a combination of desired properties. In all of these development methods it is to be understood that the principle is reducing the possibility of formation of cracks, but, once formed, all such cracks can grow under and thermal cycles and eventually lead to coating delamination and spallation. Self-healing is the most precious phenomenon to overcome this problem.


2017 ◽  
Vol 723 ◽  
pp. 743-750 ◽  
Author(s):  
Zhengjie Fan ◽  
Kedian Wang ◽  
Xia Dong ◽  
Rujia Wang ◽  
Wenqiang Duan ◽  
...  

Author(s):  
Mohammad Hassanzadeh ◽  
Paweł Sokołowski ◽  
Radek Musalek ◽  
Jan Medricky ◽  
Stefan Csaki

Abstract In this study; a novel self-healing concept is considered in order to increase the lifetime of thermal barrier coatings (TBCs) in modern gas turbines. For that purpose; SiC healing particles were introduced to conventional 8YSZ topcoats by using various plasma spray concepts; i.e.; composite or multilayered coatings. All topcoats were sprayed by SG-100 plasma torch on previously deposited NiCrAlY bondcoats produced by conventional atmospheric plasma spraying. Coatings were subjected to thermal conductivity measurements by laser flash method up to 1000°C; isothermal oxidation testing up to 200h at 1100°C and finally thermal cyclic fatigue (TCF) lifetime testing at 1100°C. Microstructural coating evaluation was performed by scanning electronic microscope (SEM); in the as-produced and post high-temperature tested states. This was done to analyze the self-healing phenomena and its influence on the hightemperature performance of the newly developed TBCs.


2018 ◽  
Vol 431 ◽  
pp. 60-74 ◽  
Author(s):  
L. Wang ◽  
F. Shao ◽  
X.H. Zhong ◽  
J.X. Ni ◽  
K. Yang ◽  
...  

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