Results 191 to 200 of about 18,524 (245)

Interface failure behavior of yttria stabilized zirconia (YSZ), La2Zr2O7, Gd2Zr2O7, YSZ/La2Zr2O7 and YSZ/Gd2Zr2O7 thermal barrier coatings (TBCs) in thermal cyclic exposure

, 2020
Gas turbine engines are exposed to severe oxidation and thermal shock under service conditions. Thermal barrier coatings (TBCs) are used to protect metallic components of gas turbines against such failures.
A. Karaoglanli, Kadir Mert Doleker, Yasin Ozgurluk   +2 more
semanticscholar   +1 more source

CMAS‐Resistant Thermal Barrier Coatings (TBC)

International Journal of Applied Ceramic Technology, 2009
Electron beam‐physical vapor‐deposited thermal barrier coatings (TBC) are susceptible to damage due to environmental contaminants such as calcium–magnesium–aluminum–silicon oxide systems (CMAS). This paper discusses various approaches of modifying TBC for enhanced protection against CMAS attack.
Amarendra K. Rai, Rabi S. Bhattacharya, Douglas E. Wolfe, Timothy J. Eden   +3 more
openaire   +1 more source

Comparison of calcium–magnesium-alumina-silicate (CMAS) resistance behavior of produced with electron beam physical vapor deposition (EB-PVD) method YSZ and Gd2Zr2O7/YSZ thermal barrier coatings systems

Vacuum, 2021
Thermal Barrier Coatings (TBCs) are generally used in both industrial gas turbines and aircraft engines. In this study, metal powders with CoNiCrAlY content were coated on Inconel 718 nickel-based superalloy substrate materials using the cold gas dynamic
Yasin Ozgurluk, A. Karaoglanli, H. Ahlatçı   +2 more
semanticscholar   +1 more source

Experimental Investigation of Residual Thermal Stress in Thermal Barrier Coating (TBC)

Key Engineering Materials, 2011
Residual thermal stress, which has a strong effect on the coating performance, is generated during the fabrication of TBC. In this paper, the residual thermal stress in TBC (92%ZrO2-8%Y2O3) with two different thicknesses (0.38 mm and 0.90 mm) is analyzed with a bi-material model. TBC specimens were sprayed by an Air Plasma Spray (APS).
Yan Song, Qin Zhi Fang, Tie Jun Wang
openaire   +1 more source

Durability Evaluation of Thermal Barrier Coating (TBC) at High Temperature

Applied Mechanics and Materials, 2013
Thermal barrier coating (TBC) which protects the gas turbine from high temperature is damaged by repeated thermal fatigue [1,2]. Generally, damage of top coating of thermal barrier coating is resulted in damage to the entire gas turbine. Thus, the durability of the thermal barrier coating should be evaluated to protect the gas turbine from damage.
Hyun Woo Song, Yong Seok Kim, Jae Mean Koo, Chang Sung Seok   +3 more
openaire   +1 more source

Microstructure design of the laser glazed layer on thermal barrier coatings and its effect on the CMAS corrosion

Corrosion Science, 2021
Calcium-magnesium-alumina-silicate (CMAS) corrosion is a great challenge for the long lifetime of thermal barrier coatings (TBCs). In this study, the surface microstructure of TBCs is tailored by laser glazing to improve the CMAS resistance, and the ...
Lei Guo, Yuan Gao, Yuxian Cheng, Jing-Yong Sun, F. Ye, Lunyan Wang   +5 more
semanticscholar   +1 more source

Delamination mechanism of thermal barrier coatings induced by thermal cycling and growth stresses

, 2021
The growth of thermally grown oxide (TGO) is often regarded as a key factor causing failures of thermal barrier coatings (TBCs) because it leads to thermal cycling and growth stresses.
Y. Q. Xiao, Lei Yang, Zhuo Wang, Y. Zhou, Z. Pi, Yuxia Wei   +5 more
semanticscholar   +1 more source

Optimization of Segmented Thermal Barrier Coatings (s-TBC) for High-Temperature Applications

International Thermal Spray Conference, 2022
Abstract Hot section components of stationary gas turbines such as turbine blades are coated with thermal barrier coatings (TBCs) to increase the high thermal strain tolerance thereby the improvement of the performance for the gas turbines.
B. A. Yalcinyüz, G. Thomas, Y. Hentschel, C. Rupprecht, F. Kamutzki, A. Gurlo   +5 more
openaire   +1 more source

Effects of Er stabilization on thermal property and failure behavior of Gd2Zr2O7 thermal barrier coatings

, 2021
This work focuses on the effects of Er stabilization on thermal property and failure behavior. The GdErZrO/YSZ TBCs exhibit a defect fluorite structure with high thermal expansion coefficient and low thermal conductivity.
Z. Shen, Guanxi Liu, R. Mu, Limin He, Zhenhua Xu, J. Dai   +5 more
semanticscholar   +1 more source

Structure and Properties of Nonstoichiometric Y1-Nb O1.5+ for Thermal Barrier Coatings

, 2021
Understanding the effect of nonstoichiometry on material properties is of critical importance for the Thermal Barrier Coatings (TBCs) application.
Muzhang Huang, Xiangyang Liu, Yingjie Feng, C. Wan, W. Pan, Jun Yang, Xiaohui Zhao   +6 more
semanticscholar   +1 more source