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- Thermal Barrier Coatings (32)
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Articles 1 - 30 of 47
Full-Text Articles in Engineering
Performance Of Columnar 7-8 Wt% Ysz Coatings On Platinum Aluminide Bondcoats, Christopher Petorak
Performance Of Columnar 7-8 Wt% Ysz Coatings On Platinum Aluminide Bondcoats, Christopher Petorak
Thermal Barrier Coatings IV
No abstract provided.
High Temperature Thermodynamic, Mechanical And Kinetic Properties From First Principles, Anton Van Der Ven
High Temperature Thermodynamic, Mechanical And Kinetic Properties From First Principles, Anton Van Der Ven
Thermal Barrier Coatings IV
No abstract provided.
Demonstration Of Two Novel Methods For Residual Stress Management On Nial Bond Coats, Markus Krottenthaler, Karsten Durst, Mathias Goken
Demonstration Of Two Novel Methods For Residual Stress Management On Nial Bond Coats, Markus Krottenthaler, Karsten Durst, Mathias Goken
Thermal Barrier Coatings IV
No abstract provided.
Nondestructive Thickness Measurements On Ebpvd Thermal Barrier Coatings By Using Terahertz Technique, Thomas Cosack, Jens Klier, Joachim Jonuscheit
Nondestructive Thickness Measurements On Ebpvd Thermal Barrier Coatings By Using Terahertz Technique, Thomas Cosack, Jens Klier, Joachim Jonuscheit
Thermal Barrier Coatings IV
No abstract provided.
Prediction Of The Cyclic Durability As A Function Of Cycle Duration And Temperature Of An Air Plasma Sprayed Coating Using Inelastic Strain, Eric H. Jordan, Shayan Ahmadian, Maurice Gell
Prediction Of The Cyclic Durability As A Function Of Cycle Duration And Temperature Of An Air Plasma Sprayed Coating Using Inelastic Strain, Eric H. Jordan, Shayan Ahmadian, Maurice Gell
Thermal Barrier Coatings IV
A detailed study of the failure mechanisms in an APS TBC was carried out involving over 1000 micrographs. As a result the kinetics of oxidation and rumpling were characterized. In addition it was found that the failure was always within the ceramic caused by progressive cracking. At approximately half the spallation life, crack linking became the dominant growth mode for cracks. This pattern of damage remained constants over the temperature range of 1066 °C to 1149 °C and for cycle durations of 0.5 hours to 50 hours. The change in temperature resulted in a variation in spallation life of a …
Evaluating Deformation Behavior Of A Tbc-System During Thermal Gradient Mechanical Fatigue By Means Of High Energy X-Ray Diffraction, M. Bartsch, J. Wischek, C. Meid, K. Knipe, A. Manero, S. Raghavan, A. M. Karlsson, J. Okasinski, J. Almer
Evaluating Deformation Behavior Of A Tbc-System During Thermal Gradient Mechanical Fatigue By Means Of High Energy X-Ray Diffraction, M. Bartsch, J. Wischek, C. Meid, K. Knipe, A. Manero, S. Raghavan, A. M. Karlsson, J. Okasinski, J. Almer
Thermal Barrier Coatings IV
No abstract provided.
Manufacture Of Silicide Coatings For The Protection Of Niobium Alloys Against High Temperature Oxidation, M. Vilasi, S. Matheieu, S. Knittel, L. Portebois, T. Katrina, C. Rapin, C. Petitjean, P. J. Panteix, S. Drawin
Manufacture Of Silicide Coatings For The Protection Of Niobium Alloys Against High Temperature Oxidation, M. Vilasi, S. Matheieu, S. Knittel, L. Portebois, T. Katrina, C. Rapin, C. Petitjean, P. J. Panteix, S. Drawin
Thermal Barrier Coatings IV
At the moment, silicide coatings provide the best protection against high temperature oxidation for niobium alloys. These are envisaged for replacing nickel base alloys currently used in the hot section of turbo-engines. Silicides confer higher protectiveness to Nb base system when compared to the environmental resistance presented by Nb alloys coated with aluminides. One major advantage of silicides is probably the great number of possibilities for modifying their composition as well as their crystallographic structure. Thus, many elemental substitutions were performed over the past 20 years in order to optimize their performances in terms of oxidation resistance. The works performed …
Ceramic Matrix Composite Environmental Protection Strategies, Bradley Richards, Hengbei Zhao, Haydn Wadley
Ceramic Matrix Composite Environmental Protection Strategies, Bradley Richards, Hengbei Zhao, Haydn Wadley
Thermal Barrier Coatings IV
No abstract provided.
Lifetime Of Environmental/Thermal Barrier Coatings Deposited On An Nb/Nb5si3- Based Alloy With Feb-Modified M7si6-Based Bond Coat, Reinhold Braun, Annika Lange, Uwe Schulz, Leo Portebois, Stephane Mathieu, Michael Vilasi, Stefan Drawin
Lifetime Of Environmental/Thermal Barrier Coatings Deposited On An Nb/Nb5si3- Based Alloy With Feb-Modified M7si6-Based Bond Coat, Reinhold Braun, Annika Lange, Uwe Schulz, Leo Portebois, Stephane Mathieu, Michael Vilasi, Stefan Drawin
Thermal Barrier Coatings IV
To enhance the performance of aircraft engines, high temperature materials are required being capable to operate at temperatures significantly higher than the temperature limit of about 1150°C approached for Ni-based superalloys currently employed. Nb/Nb5Si3-based composites are promising candidates for turbine engine applications at temperatures up to 1300°C, exhibiting balanced mechanical properties and reduced density compared to Ni-based superalloys [1]. To use these composites in gas turbine combustion atmosphere, environmental/thermal barrier coatings (E/TBCs) are required to protect them against heat, degradation in flowing water vapour and chemical attack of calcium-magnesium-alumino-silicate (CMAS).
Simulations Of Fracture In Coatings With Complex Microstructures, Mathew R. Begley, William Pro, Rone Kwei Lim, Linda Petzold
Simulations Of Fracture In Coatings With Complex Microstructures, Mathew R. Begley, William Pro, Rone Kwei Lim, Linda Petzold
Thermal Barrier Coatings IV
No abstract provided.
Lifetime Assessment Tools For Thermal Barrier Systems, Jean Louis Chaboche, Frederic Feyel, Martine Poulain, Noemie Rakotamalala, Arjen Roos, Jean Roch Vaunois, Arnaud Longuet, Pascale Kanaoute
Lifetime Assessment Tools For Thermal Barrier Systems, Jean Louis Chaboche, Frederic Feyel, Martine Poulain, Noemie Rakotamalala, Arjen Roos, Jean Roch Vaunois, Arnaud Longuet, Pascale Kanaoute
Thermal Barrier Coatings IV
No abstract provided.
Reliable Measurement Of Mechanical Tbc Properties For Quality Control And Life Prediction, Peter Wittig, Stefan Lampenscherf, Uwe Rettig, Matthias Oechsner
Reliable Measurement Of Mechanical Tbc Properties For Quality Control And Life Prediction, Peter Wittig, Stefan Lampenscherf, Uwe Rettig, Matthias Oechsner
Thermal Barrier Coatings IV
No abstract provided.
High Temperature Environmental Resistance Of Mo-Si-B Alloys And Coatings, John H. Perepezko
High Temperature Environmental Resistance Of Mo-Si-B Alloys And Coatings, John H. Perepezko
Thermal Barrier Coatings IV
No abstract provided.
Mechanical Stability Limits Of Bi-Layer Thermal Barrier Coatings, Mario Rudolphi, Mathias Galetz, Michael Schutze, Martin Frommherz, Alfred Scholz, Mathias Oechsner, Emine Bakan, Robert Vassen, Werner Stamn
Mechanical Stability Limits Of Bi-Layer Thermal Barrier Coatings, Mario Rudolphi, Mathias Galetz, Michael Schutze, Martin Frommherz, Alfred Scholz, Mathias Oechsner, Emine Bakan, Robert Vassen, Werner Stamn
Thermal Barrier Coatings IV
Thermal barrier coatings based on yttria stabilized zirconia (YSZ) have reached a state in development, where a further increase in lifetime and/or maximum operating temperature has become more and more difficult. Nevertheless, the demand for even higher operating temperatures is persisting, and it is pushing the YSZ-based thermal barrier coatings to and beyond their limit. Especially phase instabilities of YSZ at temperatures above 1200°C lead to a fast deterioration of the ceramic top coating. Consequently, the search for new materials with low thermal conductivity, relatively low coefficient of thermal expansion and phase stability at temperatures well above 1200°C was started, …
Specific Failure Modes Of Ni-Base Superalloys And Tbcs Under A Simulated Combustion Gas Atmosphere, Mazaku Okazaki, Satoshi Yamagishi, Y. Hayashi
Specific Failure Modes Of Ni-Base Superalloys And Tbcs Under A Simulated Combustion Gas Atmosphere, Mazaku Okazaki, Satoshi Yamagishi, Y. Hayashi
Thermal Barrier Coatings IV
No abstract provided.
Nasa’S Advanced Environmental Barrier Coatings Development For Sic/Sic Ceramic Matrix Composites: Understanding Cmas Degradations And Resistance, Dongming Zhu
Thermal Barrier Coatings IV
No abstract provided.
Cmas Deposition Within The Turbine Of A Small Jet Engine And Effects On Tbc Spallation, Tw Clyne
Cmas Deposition Within The Turbine Of A Small Jet Engine And Effects On Tbc Spallation, Tw Clyne
Thermal Barrier Coatings IV
No abstract provided.
Probabilistic Lifetime Prediction Of Tbc Coated Parts Considering Design, Operation And Manufacturing + Thermal Barrier Coatings Ageing Mechanisms In Land-Based Gas Turbines, Hans Peter Bossmann, Gregoire Witz
Probabilistic Lifetime Prediction Of Tbc Coated Parts Considering Design, Operation And Manufacturing + Thermal Barrier Coatings Ageing Mechanisms In Land-Based Gas Turbines, Hans Peter Bossmann, Gregoire Witz
Thermal Barrier Coatings IV
A lifing model has been developed based on lab testing to describe the time-temperature-dependence of TBC spallation. An extensive parameter study, using serial parts and coating processes, was done to investigate the affect of manufacturing scatter on TBC life as well as on thermal loading. The impacts of several parameters have been quantified. The transfer to part level has to consider the overall boundary conditions, i.e. increased TBC thickness will reduce on one hand the bondcoat temperature and the risk of spallation, but on the other hand, the increased thickness will increase the stresses within the TBC and the risk …
Attack Of Thermal Barrier Coatings By Molten Silicate Deposits (Sand, Ash) And Its Mitigation, Nitin P. Padture
Attack Of Thermal Barrier Coatings By Molten Silicate Deposits (Sand, Ash) And Its Mitigation, Nitin P. Padture
Thermal Barrier Coatings IV
No abstract provided.
A Thermodynamic Database For Simulation Of Cmas And Tbc Interactions, Lina Kjellqvist, Johan Brattberg, Ake Jansson, Huahai Mao
A Thermodynamic Database For Simulation Of Cmas And Tbc Interactions, Lina Kjellqvist, Johan Brattberg, Ake Jansson, Huahai Mao
Thermal Barrier Coatings IV
A thermodynamic database has been developed for calculating thermochemical interaction of thermal barrier coatings, namely 7YSZ (yttria partially stabilized zirconia), with CaO-MgO-Al2O3-SiO2 (CMAS) deposits. CaO-MgO-Al2O3-SiO2-Y2O3-ZrO2 is thus the core system for understanding and modeling of processes occurring between CMAS and TBC. A good thermodynamic description of all phases in the system is essential in modeling related to materials design and process optimization. An efficient technique used to obtain a self-consistent thermodynamic database is called the CALPHAD method [1], where the Gibbs energy of each phase is described with a mathematical model. The Gibbs energy of the total system is then …
Development Of A Naturalistic Test Media For Dust Ingestion Cmas Testing Of Gas Turbine Engines, Andrew W. Phelps, Lynne Pfledderer
Development Of A Naturalistic Test Media For Dust Ingestion Cmas Testing Of Gas Turbine Engines, Andrew W. Phelps, Lynne Pfledderer
Thermal Barrier Coatings IV
No abstract provided.
Yttrium Oxide A Candidate Material For Environmental And Thermal Barrier Coatings, Peter Mechnich, Wolfgang Braue, Nadine K. Eils, Stefan Hackemann, Ravisankar Naraparaju
Yttrium Oxide A Candidate Material For Environmental And Thermal Barrier Coatings, Peter Mechnich, Wolfgang Braue, Nadine K. Eils, Stefan Hackemann, Ravisankar Naraparaju
Thermal Barrier Coatings IV
No abstract provided.
Examination Of Cmas-Induced Eb-Pvd Tbc Failure, Vladimir Tolpygo
Examination Of Cmas-Induced Eb-Pvd Tbc Failure, Vladimir Tolpygo
Thermal Barrier Coatings IV
No abstract provided.
Tbc Lifetime Under Thermal Gradient Cyclic Testing With Simultaneous Cmas Attack: Towards Prediction Of Advanced Tbc Performance, Daniel Emil Mack, Doris Sebold, Michael Müller, Robert Vaseen, Maria Ophelia Jarligo, Tanja Wobst
Tbc Lifetime Under Thermal Gradient Cyclic Testing With Simultaneous Cmas Attack: Towards Prediction Of Advanced Tbc Performance, Daniel Emil Mack, Doris Sebold, Michael Müller, Robert Vaseen, Maria Ophelia Jarligo, Tanja Wobst
Thermal Barrier Coatings IV
No abstract provided.
Cmas Degradation And Implications For Coating Design, Arlos Levi
Cmas Degradation And Implications For Coating Design, Arlos Levi
Thermal Barrier Coatings IV
No abstract provided.
Aps Tbc Life Prediction - Impact Of Manufacturing Variations, Stefan Lampenscherf, Ramesh Subramanian
Aps Tbc Life Prediction - Impact Of Manufacturing Variations, Stefan Lampenscherf, Ramesh Subramanian
Thermal Barrier Coatings IV
No abstract provided.
Solubility Of Oxides From Zro2-Y2o3 And Zro2-Nd2o3 Systems In A Molten Cas. Selection Of A Thermal Barrier Composition Resistant To Cas Infiltration, Marie-Helene Vidal-Setif, Catherine Rio, Odile Lavigne, Nezha Chellah, Michel Vilasi, Cristophe Rapin, Carine Petitjean, Pierre Jean Panteix
Solubility Of Oxides From Zro2-Y2o3 And Zro2-Nd2o3 Systems In A Molten Cas. Selection Of A Thermal Barrier Composition Resistant To Cas Infiltration, Marie-Helene Vidal-Setif, Catherine Rio, Odile Lavigne, Nezha Chellah, Michel Vilasi, Cristophe Rapin, Carine Petitjean, Pierre Jean Panteix
Thermal Barrier Coatings IV
No abstract provided.
Engineered Multi-Layered Thermal Barrier Coatings For Enhanced Durability, Sanjay Sampath, Vaishak Viswanathan, Gopal Dwivedi
Engineered Multi-Layered Thermal Barrier Coatings For Enhanced Durability, Sanjay Sampath, Vaishak Viswanathan, Gopal Dwivedi
Thermal Barrier Coatings IV
No abstract provided.
Columnar Structured Thermal Barrier Coatings By Thermal Spray Methods, Robert Vassen, Nadine Schlegel, Stefan Rezanka, Georg Mauer, Emine Bakan, Daniel Mack
Columnar Structured Thermal Barrier Coatings By Thermal Spray Methods, Robert Vassen, Nadine Schlegel, Stefan Rezanka, Georg Mauer, Emine Bakan, Daniel Mack
Thermal Barrier Coatings IV
No abstract provided.
Stress And Crack Monitoring During Plasma Spraying Of Tbc, Seiji Kuroda, Xiancheng Zhang, Makoto Watanabe, Kaita Ito, Manabu Enoki
Stress And Crack Monitoring During Plasma Spraying Of Tbc, Seiji Kuroda, Xiancheng Zhang, Makoto Watanabe, Kaita Ito, Manabu Enoki
Thermal Barrier Coatings IV
Two types of process monitoring techniques are compared and discussed in this presentation. The first one is in-situ curvature monitoring, by which it was possible to evaluate the stress evolution during plasma spraying and separately identify the sources of stresses, i.e., the quenching stress and thermal stress as shown in Fig.1 (a). By changing the spraying parameters, it was possible to prepare specimens at largely different deposition temperatures, which resulted in significantly different levels of residual stresses. Also, it was found that the mechanical properties of the obtained YSZ coatings such as the elastic modulus are strongly dependent on the …