Investigating Hot corrosion, CMAS, and Thermal Shock Behaviour of Double-layer YSZ/La2Ce2O7 + YSZ Thermal Barrier Coatings
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DOI: 10.1007/s11666-024-01845-w
Abstract: In this work, new double-layer YSZ/La2Ce2O7 (LC) + YSZ coatings were developed using air plasma spraying (APS). The surface of the prepared coatings was relatively smooth and consisted of melted and partially melted areas. Their resistance to… read more here.
Keywords: layer; ysz; cmas; hot corrosion ... See more keywords
Wetting mechanism of CMAS melt on YSZ surface at high temperature: First-principles calculation
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DOI: 10.1016/j.apsusc.2019.04.009
Abstract: Abstract The wetting process of CaO-MgO-Al2O3-SiO2 (CMAS) melt on yttria-stabilized zirconia (YSZ) surface is studied at 1523 K by molecular dynamics simulations. Several parameters, such as the contact angle (θ), work of adhesion, surface tension, and… read more here.
Keywords: cmas melt; surface; ysz surface; cmas ... See more keywords
Corrosion behavior of air plasma spraying zirconia-based thermal barrier coatings subject to Calcium–Magnesium–Aluminum-Silicate (CMAS) via burner rig test
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DOI: 10.1016/j.ceramint.2020.04.184
Abstract: Abstract Three different kinds of thermal barrier coatings (TBCs) — 8YSZ, 38YSZ and a dual-layered (DL) TBCs with pure Y2O3 on the top of 8YSZ were produced on nickel-based superalloy substrate by air plasma spraying… read more here.
Keywords: rig test; corrosion; burner rig; cmas ... See more keywords
Crystallization behavior of CMAS and NaVO3+CMAS mixture and its potential effect to thermal barrier coatings corrosion
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DOI: 10.1016/j.ceramint.2021.08.072
Abstract: Abstract Calcium-magnesium-alumina-silicate (CMAS) and molten salt corrosion pose great threats to thermal barrier coatings (TBCs), and recently, a coupling effect of CMAS and molten salt has been found to cause even severer corrosion to TBCs.… read more here.
Keywords: cmas; cmas navo3; crystallization; corrosion ... See more keywords
La2(Zr0.7Ce0.3)2O7 thermal barrier coatings prepared by electron beam-physical vapor deposition that are resistant to high temperature attack by molten silicate
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DOI: 10.1016/j.corsci.2016.11.015
Abstract: Abstract Calcium-magnesium-alumino-silicate (CMAS) attack is a significant failure mechanism for thermal barrier coatings (TBC). In this study, La 2 (Zr 0.7 Ce 0.3 ) 2 O 7 (LZ7C3) TBC prepared by electron-beam physical vapor deposition… read more here.
Keywords: cmas; beam physical; prepared electron; thermal barrier ... See more keywords
CMAS resistance characteristics of LaPO4/YSZ thermal barrier coatings at 1250°C–1350°C
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DOI: 10.1016/j.corsci.2019.04.014
Abstract: Abstract Calcium-magnesium-alumina-silicate (CMAS) attack is becoming a great challenge for thermal barrier coating (TBC) applications. In this study, CMAS corrosion behavior of LaPO4/YSZ TBCs prepared by air plasma spray was investigated at a temperature range… read more here.
Keywords: lapo4 ysz; cmas; 1250 1350; corrosion ... See more keywords
Comparison of NaVO3+CMAS mixture and CMAS corrosion to thermal barrier coatings
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DOI: 10.1016/j.corsci.2020.108968
Abstract: Abstract Corrosion results from calcium-magnesium-alumina-silicate (CMAS) and CMAS + NaVO3 (CN) to YSZ thermal barrier coatings (TBCs) are investigated and compared. CN had lower melting temperature (by ∼ 50 °C) and viscosity than CMAS. At 1200 °C, CN was… read more here.
Keywords: comparison navo3; cmas; corrosion; thermal barrier ... See more keywords
Thermal insulation of CMAS (Calcium-Magnesium-Alumino-Silicates)- attacked plasma-sprayed thermal barrier coatings
Sign Up to like & getrecommendations! Published in 2020 at "Journal of The European Ceramic Society"
DOI: 10.1016/j.jeurceramsoc.2019.12.040
Abstract: Abstract The impact of the penetration of small quantities of calcium-magnesium-alumino- silicates (CMAS) glassy melt in the porous plasma-sprayed (PS) thermal barrier coatings (TBCs) is often neglected even though it might play a non-negligible role… read more here.
Keywords: cmas; magnesium alumino; plasma sprayed; calcium magnesium ... See more keywords
Wetting and spreading behaviour of molten CMAS towards thermal barrier coatings and its influencing factors
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DOI: 10.1016/j.rinp.2021.104365
Abstract: Abstract Thermal barrier coatings (TBCs) are inevitably subject to corrosion caused by molten calcium-magnesium-alumino-silicate (CMAS), which leads to severe degradation in the properties of the coatings. In this study, a novel device for evaluating the… read more here.
Keywords: wetting spreading; molten cmas; cmas; thermal barrier ... See more keywords
Effects of seasalt and sulfate additions on the melting and crystallization behavior of CMAS glass
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DOI: 10.1111/ijac.70043
Abstract: Particulate silicates (sand, dust, ash) present in the environment, which are ingested by aircraft gas‐turbine engines (GTEs), are known to melt and deposit as calcia‒mangesia‒aluminosilicate (CMAS) glass on GTE hot‐section hardware. These deposits degrade the… read more here.
Keywords: crystallization behavior; melting crystallization; cmas; cmas glass ... See more keywords
Evolution of porosity, crack density, and CMAS penetration in thermal barrier coatings subjected to burner rig testing
Sign Up to like & getrecommendations! Published in 2019 at "Journal of the American Ceramic Society"
DOI: 10.1111/jace.16465
Abstract: Degradation of thermal barrier coatings (TBCs) in gas‐turbine engines due to calcium–magnesium–aluminosilicate (CMAS) glassy deposits from various sources has been a persistent issue since many years. In this study, state of the art electron microscopy… read more here.
Keywords: cmas; thermal barrier; burner rig; barrier coatings ... See more keywords