Cyclic-Oxidation Behavior of Thermal-barrier Coatings Exposed to NaCl Vapor

2007 ◽  
Vol 69 (1-2) ◽  
pp. 119-130 ◽  
Author(s):  
Chungen Zhou ◽  
Yingxue Song ◽  
Changliang Wang ◽  
Huibin Xu
Keyword(s):  
Thermal Barrier Coatings ◽  
Cyclic Oxidation ◽  
Oxidation Behavior ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Nacl Vapor

scholarly journals Furnace cyclic oxidation behavior of multicomponent low conductivity thermal barrier coatings

2004 ◽  
Vol 13 (1) ◽  
pp. 84-92 ◽  
Author(s):  
Dongming Zhu ◽  
James A. Nesbitt ◽  
Charles A. Barrett ◽  
Terry R. McCue ◽  
Robert A. Miller
Keyword(s):  
Thermal Barrier Coatings ◽  
Cyclic Oxidation ◽  
Oxidation Behavior ◽  
Thermal Barrier ◽  
Barrier Coatings

scholarly journals Effects of Al Sputtering Film on the Oxidation Behavior of NiCrAlY Bondcoat

Coatings ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 376
Author(s):  
Yong Zhang ◽  
Gengfei Zhang ◽  
Qiang Yang ◽  
Weicheng Cao ◽  
Jian Pu ◽  
...  
Keyword(s):  
Oxidation Resistance ◽  
Thermal Barrier Coatings ◽  
Cyclic Oxidation ◽  
Oxidation Behavior ◽  
Mixed Oxides ◽  
Oxidation Mechanism ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Al Content ◽  
Α Al2o3

In this study, the oxidation behavior of Al coated NiCrAlY bondcoat is investigated. It is known that many methods are applied to improve the lifetime of bondcoat in thermal barrier coatings. Herein, the Al sputtering method is selected to increase the Al content, which does not change the structure of bondcoat. Thin Al film of ~2 µm was sputtered on the surface of bondcoat, which improved the oxidation resistance of NiCrAlY bondcoat. Experimental results showed that, after oxidation for 200 h at 1200 °C, the formation of a dense and continuous α-Al2O3/Cr2O3 multilayer was observed on the Al coated bondcoat surface. In contrast, a mixed oxides (NiO, Cr2O3 and spinel oxides) layer formed on the surface of the as-sprayed bondcoat samples. Results of the cyclic oxidation at 1050 °C within 204 h indicated that the Al sputtering method can improve the oxidation resistance of bondcoat. This study offers a potential way to prolong the lifetime of thermal barrier coatings and provides analysis of the oxidation mechanism.

scholarly journals Optimized sol–gel thermal barrier coatings for long-term cyclic oxidation life

2014 ◽  
Vol 34 (4) ◽  
pp. 961-974 ◽  
Author(s):  
Lisa Pin ◽  
Vanessa Vidal ◽  
Fabien Blas ◽  
Florence Ansart ◽  
Sandrine Duluard ◽  
...  
Keyword(s):  
Thermal Barrier Coatings ◽  
Cyclic Oxidation ◽  
Sol Gel ◽  
Thermal Barrier ◽  
Barrier Coatings

scholarly journals Influence of Surface Treatment of Bondcoat and Yttrium in Bondcoat on Oxidation Behavior of Thermal Barrier Coatings

2006 ◽  
Vol 70 (1) ◽  
pp. 7-13
Author(s):  
Takayuki Yoshioka ◽  
Hideyuki Arikawa ◽  
Mitsutoshi Okada ◽  
Tohru Hisamatsu ◽  
Yoshitaka Kojima
Keyword(s):  
Surface Treatment ◽  
Thermal Barrier Coatings ◽  
Oxidation Behavior ◽  
Thermal Barrier ◽  
Barrier Coatings

Effect of TiC self-healing coatings on the cyclic oxidation resistance and lifetime of thermal barrier coatings

2016 ◽  
Vol 656 ◽  
pp. 992-1003 ◽  
Author(s):  
Taoyuan Ouyang ◽  
Jinyang Wu ◽  
Muhammad Yasir ◽  
Tong Zhou ◽  
Xuanwei Fang ◽  
...  
Keyword(s):  
Oxidation Resistance ◽  
Thermal Barrier Coatings ◽  
Cyclic Oxidation ◽  
Thermal Barrier ◽  
Self Healing ◽  
Barrier Coatings

scholarly journals Advances in the Field of New Smart Thermal Barrier Coatings

2010 ◽  
Vol 66 ◽  
pp. 136-141 ◽  
Author(s):  
Lisa Pin ◽  
Florence Ansart ◽  
Justine Fenech ◽  
Philippe Lours ◽  
Jean Pierre Bonino ◽  
...  
Keyword(s):  
Thermal Barrier Coatings ◽  
Cyclic Oxidation ◽  
Sol Gel ◽  
Functional Materials ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
New Synthesis ◽  
Controlled Morphology ◽  
Nanometric Particles ◽  
Zirconia Powders

This paper deals with the development of a new synthesis technique for functional materials such as Yttria Stabilized Zirconia (YSZ) in the field of thermal barrier coatings. Currently, Thermal Barrier Coatings (TBCs) are manufactured by dry route technologies (EB-PVD or plasma spray) but such methods are directional and often require costly investments and complex operations. For these applications, the sol-gel route, a non directional method, is developed, to process, by suitable chemical modifications, nanocrystalline materials with a controlled morphology. The main advantage of this method is to decrease the crystallization temperature, much lower than the conventional processes, allowing the synthesis of reactive substituted zirconia powders with nanometric particles size. In this study, several suitable architectures for thermal barrier coatings have been achieved in order to show that this process is appropriate for repairing damaged TBC compared to conventional processes. The next step is to investigate spallation mechanisms and overall TBC durability by cyclic oxidation. Preliminary results are promising and research will be develop further to optimize both processing and cyclic oxidation behavior.

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