Effects of surface roughness on CMAS corrosion behavior
· Calcium-magnesium-alumina-silicate (CMAS) corrosion is an important cause for thermal barrier coating (TBC) failure which has attracted increased attentions. In this study some thermal barrier coating (TBC) materials including YSZ (yttria partially stabilized zirconia) GdPO 4 and LaPO 4 were prepared into bulks and the effects of their surface
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USB2Calcium-magnesium alumino-silicate (CMAS
The thermal barrier coating includes reactive gadolinia in its microstructures and the embedded gadolinia effectively reacts with CMAS contaminant reducing the damage from CMAS. Moreover a method to produce a CMAS resistant thermal barrier coating can include a post-treatment to the thermal barrier coating with the reactive gadolinia suspension in sol-gel state.
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Eff ect of CMAS on Th ermal Shock Performance of
· with CMAS deposits Journal of the European Ceramic Society 31(10) . 6 Krause A. R. et al. (2016). Calcia-magnesia-alumino-silicate (CMAS)-induced degradation and failure of air plasma sprayed yttria-stabilized zirconia thermal barrier coatings Acta Materialia 105 .
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Microstructural evolution mechanical properties and
· However nowadays a reliability problem has emerged on TBCs by the attack of calcium–magnesium–alumino-silicate (CMAS) deposits. This phenomenon derives from the ingestion of siliceous minerals (sand dust and volcanic ash) by the engines .
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CMASYSZ
Abstract In order to study the microstructure changes and phase transitions of different depth areas in the caused by the corrosion of the calcium magnesium aluminum silicate (CMAS) athigh temperature scanning electron microscope (SEM) and an X-ray diffractometer (XRD) energy-dispersive X-ray spectroscope (EDS) and electron backscatter diffraction (EBSD) were used to characterize and
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Recent Corrosion Science ArticlesElsevier
· Influence of pore characteristics of air plasma sprayed thermal barrier coatings on calcia-magnesia-alumino-silicate (CMAS) attack behavior. September 2021. Atomic-scale evidence for the intergranular corrosion mechanism induced by co-segregation of low-chromium ferritic stainless steel. 15
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Calcia–magnesia–alumina-silica particle deposition
The overall objective of the approach is to predict time-accurate calcia–magnesia–alumina-silica (CMAS) particle (such as sand volcanic ash and salt) transport in gas turbine engine type flows in a computationally tractable and physical manner. Both Lagrangian and Eulerian particles are considered in the modeling approach.
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Stress Evolution and Element Diffusion in Bi-Layered
1 A.R. Krause H.F. Garces G. Dwivedi et al. Calcia-magnesia-alumino-silicate (CMAS)-induced degradation and failure of air plasma sprayed yttria-stabilized zirconia thermal barrier coatings. Acta Mater. 105 (2016) .
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CMASYSZ
CMASYSZ. 1 2 2 1. 1. 201418 2. 200050. .
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Calcia-magnesia-alumino-silicate (CMAS)-induced
· Krause Amanda R. Garces Hector F. Dwivedi Gopal Ortiz Angel L. Sampath Sanjay and Padture Nitin P. Calcia-magnesia-alumino-silicate (CMAS)-induced degradation and failure of air plasma sprayed yttria-stabilized zirconia thermal barrier coatings. United States N. p. 2016. Web. doi 10.1016/j.actamat.2015.12.044.
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January 25 2018NASA
· resist sand glaze build-up and related Calcia-Magnesia-Alumina-Silicate (CMAS) attack on Thermal/Environmental Barrier Coatings (T/EBCs) • Introduction • The sandCMAS problem • Protective Ceramic Coatings • Ongoing Experimental Efforts • TBCs tested in full scale engine tests • EBC burner rig testing and characterization
Get PriceDegradation and Mitigation Mechanisms of Molten
"Calcia-Magnesia-Alumino-Silicate (CMAS)-Induced Degradation and Failure of Air Plasma Sprayed Yttria-Stabilized Zirconia Thermal Barrier Coatings " Acta Materialia 105 (2016).
Get PriceAdhesion behavior of calcia–magnesia–alumino–silicates on
The reaction and formation of the resulting calcia-magnesia-alumino-silicate (CMAS) deposits can lead to cracking and delamination of the protective coatings Reference Evans Mumm Hutchinson Meier and Pettit 5 Reference Hutchinson and Evans 6 Reference Aygun Vasiliev Padture and Ma 7 Reference Krämer Yang and Levi 8 Reference Drexler Aygun Li Vaßen Steinke and Padture 9 Reference
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Recent Corrosion Science ArticlesElsevier
· Influence of pore characteristics of air plasma sprayed thermal barrier coatings on calcia-magnesia-alumino-silicate (CMAS) attack behavior. September 2021. Atomic-scale evidence for the intergranular corrosion mechanism induced by co-segregation of low-chromium ferritic stainless steel. 15
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Sand particle-Induced deterioration of thermal barrier
· glazing Calcia-Magnesia-Alumina-Silicate (CMAS) attack oxidation plugged cooling holes all of which can cause rapid performance deterioration including loss of aircraft. The . focus of this research work is to simulate particle-surface kinetic interactio. n on typical turbomachinery . material targets using non-linear dynamic impact analysis.
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Governing Parameters Influencing CMAS Adhesion and
· Rare-Earth Oxides Blended With Yttria-Stabilized Zirconia Thermal Barrier Coatings for Improved Resistance to Sand Adherence and Calcia-Magnesia-Alumino-Silicate (CMAS) Infiltration GT2019 Fabrication and Characterization of Additive Manufactured Nickel-Based ODS Coating Layer for High Temperature Application
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Surface Coatings Technology
Calcia-magnesia-alumina-silica (CMAS) A study has been made of the effect of vermiculite (VM) on the sintering-induced spallation of plasma Vermiculite (VM) is a hydrous silicate mineral and is widely mined for commercial uses such as for insulation panels or fertilizers. induced
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Calcia–magnesia–alumina-silica particle deposition
The overall objective of the approach is to predict time-accurate calcia–magnesia–alumina-silica (CMAS) particle (such as sand volcanic ash and salt) transport in gas turbine engine type flows in a computationally tractable and physical manner. Both Lagrangian and Eulerian particles are considered in the modeling approach.
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Brown Digital Repository Item bdr 674366
Abstract Calcia-magnesia-alumino-silicate (CMAS) deposits cause spallation and degradation of thermal barrier coatings (TBCs) which are used to insulate and protect metallic components in gas turbine engines. The reaction between CMAS and conventional TBCs 7 wt. Y2O3 partially stabilized ZrO2 (7YSZ) was investigated by isothermal studies
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Resistance of pure and mixed rare earth silicates against
· The interaction of four pure rare earth silicate EBC materials Yb 2 SiO 5 Yb 2 Si 2 O 7 Y 2 SiO 5 Y 2 Si 2 O 7 and three ytterbium silicate mixtures with molten calcium-magnesium-aluminosilicate (CMAS) were studied at high temperature (1400°C). The samples were characterized by SEM and XRD in order to evaluate the recession of the different
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January 25 2018NASA
· resist sand glaze build-up and related Calcia-Magnesia-Alumina-Silicate (CMAS) attack on Thermal/Environmental Barrier Coatings (T/EBCs) • Introduction • The sandCMAS problem • Protective Ceramic Coatings • Ongoing Experimental Efforts • TBCs tested in full scale engine tests • EBC burner rig testing and characterization
Get Price
Stress Evolution and Element Diffusion in Bi-Layered
1 A.R. Krause H.F. Garces G. Dwivedi et al. Calcia-magnesia-alumino-silicate (CMAS)-induced degradation and failure of air plasma sprayed yttria-stabilized zirconia thermal barrier coatings. Acta Mater. 105 (2016) .
Get Price
Calcium-magnesium alumino-silicate (CMAS) resistant
Calcium-magnesium alumino-silicate (CMAS) resistant thermal barrier coatings systems and methods of production thereof Abstract. The thermal barrier coating includes reactive gadolinia in its microstructures and the embedded gadolinia effectively reacts with CMAS contaminant reducing the damage from CMAS.
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Sand particle-Induced deterioration of thermal barrier
· glazing Calcia-Magnesia-Alumina-Silicate (CMAS) attack oxidation plugged cooling holes all of which can cause rapid performance deterioration including loss of aircraft. The . focus of this research work is to simulate particle-surface kinetic interactio. n on typical turbomachinery . material targets using non-linear dynamic impact analysis.
Get PriceStress Evolution and Element Diffusion in Bi-Layered
1 A.R. Krause H.F. Garces G. Dwivedi et al. Calcia-magnesia-alumino-silicate (CMAS)-induced degradation and failure of air plasma sprayed yttria-stabilized zirconia thermal barrier coatings. Acta Mater. 105 (2016) .
Get PriceRecent Corrosion Science ArticlesElsevier
· Influence of pore characteristics of air plasma sprayed thermal barrier coatings on calcia-magnesia-alumino-silicate (CMAS) attack behavior. September 2021. Atomic-scale evidence for the intergranular corrosion mechanism induced by co-segregation of low-chromium ferritic stainless steel. 15
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Eff ect of CMAS on Th ermal Shock Performance of
· with CMAS deposits Journal of the European Ceramic Society 31(10) . 6 Krause A. R. et al. (2016). Calcia-magnesia-alumino-silicate (CMAS)-induced degradation and failure of air plasma sprayed yttria-stabilized zirconia thermal barrier coatings Acta Materialia 105 .
Get PriceAmanda KrauseAssistant ProfessorUniversity of
Calcia-magnesia-alumino-silicate (CMAS)-induced degradation and failure of air plasma sprayed yttria-stabilized zirconia thermal barrier coatings Acta Materialia February 1 2016
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USB2Calcium-magnesium alumino-silicate (CMAS
The thermal barrier coating includes reactive gadolinia in its microstructures and the embedded gadolinia effectively reacts with CMAS contaminant reducing the damage from CMAS. Moreover a method to produce a CMAS resistant thermal barrier coating can include a post-treatment to the thermal barrier coating with the reactive gadolinia suspension in sol-gel state.
Get Price
