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Optimization of Segmented Thermal Barrier Coatings (s-TBC) for High-Temperature Applications
International Thermal Spray Conference, 2022Abstract 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 +5 more
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Thermal and Environmental Barrier Coatings (TBCs/EBCs) for Turbine Engines
2013Abstract This article presents a summary of the current and new materials and processing techniques for thermal barrier coatings (TBCs) and environmental barrier coatings (EBCs). Different thermal spraying and postspraying processing techniques are required to produce coatings with optimal performance.
Rogerio S. Lima, Dongming Zhu, Li Li
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Transactions of the Indian Ceramic Society, 2003
Ceramic top layers of yttria stabilized zirconia (YSZ) have gained increasing importance as thermal barrier coatings (TBCs) of heat exposed components in advanced gas turbines. In air plasma sprayed (APS) coatings the low inherent thermal conductivity of YSZ is further enhanced by the numerous microstructural defects from the spraying process. However,
R. W. Steinbrech, D. Basu
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Ceramic top layers of yttria stabilized zirconia (YSZ) have gained increasing importance as thermal barrier coatings (TBCs) of heat exposed components in advanced gas turbines. In air plasma sprayed (APS) coatings the low inherent thermal conductivity of YSZ is further enhanced by the numerous microstructural defects from the spraying process. However,
R. W. Steinbrech, D. Basu
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Columnar Structured Thermal Barrier Coatings (TBCs) by Suspension Plasma Spraying (SPS)
International Thermal Spray Conference, 2014Abstract In this study, a suspension containing Mg-Al-spinel nanopowder was deposited on bond-coated IN738 and stainless steel disks by suspension plasma spraying with and without substrate cooling. Coating surfaces and cross-sections were examined by SEM, EDS, and XRD analysis and thermal cycling tests were performed.
N. Schlegel +3 more
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Microstructural effect on the radiative properties of YSZ thermal barrier coatings (TBCs)
International Journal of Heat and Mass Transfer, 2014Abstract Thermal barrier coatings (TBCs) are not the pure bulk materials, and they contain many different micro/nano structures caused by the plasma spraying process. The microstructures in the coatings play a very important role on mechanical and thermal properties, therefore, the coating properties differ hugely from those of the corresponding bulk
B.J. Zhang, B.X. Wang, C.Y. Zhao
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A New Design Methodology of Thermal Barrier Coating (TBC) for Internal Combustion Engines
ASME 2020 Heat Transfer Summer Conference, 2020Abstract Currently available Internal combustion (IC) engines contribute 25% of the total world energy consumption. IC engines convert only 40% of the fuel energy into the indicated power[1]. Roughly, 30 percent of heat energy is lost from the combustion chamber to the environment.
Chandra Pratap Singh +2 more
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Transactions of the Korean Society of Mechanical Engineers A, 2014
의 열화에 따른 접착강도 시험 결과와 유한요소해석 결과의 비교를 통하여 열차폐코팅의 내구성을 평Key Words: Thermal Barrier Coating(열차폐코팅), Thermally Grown Oxide(열생성산화물), Durability Evaluation(내구성평가), Finite Element Analysis(유한요소해석) 초록: 가스터빈에 적용되는 열차폐코팅은 가동 중 반복적인 열피로에 의하여 파손되므로, 열차폐코팅의 내구성평가가 필요하다. 고온 환경에 노출된 열차폐코팅의 내부에는 열생성산화물(TGO)이 성장하게 되는데, 이러한 열생성산화물(TGO)의 성장은 열차폐코팅의 주요 파손 원인으로 알려져 있다.
Hyun Woo Song +6 more
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의 열화에 따른 접착강도 시험 결과와 유한요소해석 결과의 비교를 통하여 열차폐코팅의 내구성을 평Key Words: Thermal Barrier Coating(열차폐코팅), Thermally Grown Oxide(열생성산화물), Durability Evaluation(내구성평가), Finite Element Analysis(유한요소해석) 초록: 가스터빈에 적용되는 열차폐코팅은 가동 중 반복적인 열피로에 의하여 파손되므로, 열차폐코팅의 내구성평가가 필요하다. 고온 환경에 노출된 열차폐코팅의 내부에는 열생성산화물(TGO)이 성장하게 되는데, 이러한 열생성산화물(TGO)의 성장은 열차폐코팅의 주요 파손 원인으로 알려져 있다.
Hyun Woo Song +6 more
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Journal of Materials Science Letters, 2001
Thermal barrier coatings (TBCs) have been applied to gas turbine blades and vanes for providing thermal protection and corrosion resistance. One of the major concerns for application of TBCs is their reliability and durability. It has been established that the oxidation of bond coat underlying yttria stablized zirconia (YSZ) is a dominant factor in ...
Xin Wang, Junfa Mei, Ping Xiao
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Thermal barrier coatings (TBCs) have been applied to gas turbine blades and vanes for providing thermal protection and corrosion resistance. One of the major concerns for application of TBCs is their reliability and durability. It has been established that the oxidation of bond coat underlying yttria stablized zirconia (YSZ) is a dominant factor in ...
Xin Wang, Junfa Mei, Ping Xiao
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International Thermal Spray Conference, 2010
Abstract The very low pressure plasma Spray (VLPPS) process has been developed with the aim of depositing uniform and thin coatings with large area coverage by plasma spraying. At typical pressures of 100-200 Pa, the characteristics of the plasma jet change compared to conventional low pressure plasma spraying processes (LPPS) operating ...
Andreas Hospach +3 more
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Abstract The very low pressure plasma Spray (VLPPS) process has been developed with the aim of depositing uniform and thin coatings with large area coverage by plasma spraying. At typical pressures of 100-200 Pa, the characteristics of the plasma jet change compared to conventional low pressure plasma spraying processes (LPPS) operating ...
Andreas Hospach +3 more
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Journal of the American Ceramic Society
Abstract Air‐plasma‐sprayed thermal barrier coating analysis faces three key challenges: informational complexity from overlapping defect morphologies, semantic ambiguity from gradient boundaries, and data scarcity from asymmetric feature distribution.
Tianmeng Huang +9 more
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Abstract Air‐plasma‐sprayed thermal barrier coating analysis faces three key challenges: informational complexity from overlapping defect morphologies, semantic ambiguity from gradient boundaries, and data scarcity from asymmetric feature distribution.
Tianmeng Huang +9 more
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