Results 71 to 80 of about 5,487,142 (143)

Sol–gel processing and characterization of (RE-Y)-zirconia powders for thermal barrier coatings [PDF]

open access: yes, 2011
The effect of doping on the structural, morphological and thermal properties of ZrO2–XO1.5 (X=Y, La, Sm, Er) solid solutions for thermal barrier (TBC) applications was investigated. Oxide powders of various compositions from 9.7 to 40 mol% XO1.5 (X=Y, La,
Ansart, Florence   +9 more
core   +1 more source

An aluminum surface modification strategy for enhancing CMAS corrosion resistance of environmental barrier coatings

open access: yesJournal of Advanced Ceramics
As the inlet temperature of engines increases, injected sand, volcanic ash, and dust melt to form calcium−magnesium−aluminosilicate (CMAS) glass, which subsequently adheres to the surface of ytterbium monosilicate (YbMS; Yb2SiO5) environmental barrier ...
Lin Dong   +6 more
doaj   +1 more source

Inverse design of high-entropy rare-earth monosilicates with superior CMAS corrosion resistance

open access: yesJournal of Materiomics
The exploitation of high-entropy rare-earth monosilicates (HEREMSs) with enhanced calcium-magnesium-aluminum-silicate (CMAS) corrosion resistance is vital for their potential applications as environmental barrier coatings (EBCs).
Hao Bai   +5 more
doaj   +1 more source

Effect of Si/Yb2Si2O7/Yb2SiO5 Coatings on Bending Strength of SiCf/SiC Composite Material at Room Temperature [PDF]

open access: yesCailiao Baohu
    Silicon carbide fiber-reinforced silicon carbide matrix (SiCf / SiC) composites exhibit excellent high-temperature mechanical properties and low density compared with traditional metallic superalloys,making them ...
ZHANG Le, ZHENG Hong, ZHANG Weining, LI Jing, CUI Xiangzhong, WANG Yongsheng, LYU Mingda, YANG Bin
doaj   +1 more source

Microstructure and thermal properties of hafnium-doped high-entropy oxide (Y0.25Ho0.25Er0.25Yb0.25)2O3 coatings

open access: yesJournal of Advanced Ceramics
The development of thermal/environmental barrier coatings (T/EBCs) is significantly constrained by the stringent material requirements for their topcoats.
Guangheng Zhang   +6 more
doaj   +1 more source

A systematic study of thermomechanical properties and calcium–magnesium–aluminosilicate (CMAS) corrosion of multicomponent rare-earth phosphates

open access: yesJournal of Advanced Ceramics
Multicomponent rare earth phosphates hold immense potential as next-generation environmental barrier coatings (EBCs), offering enormous possibilities and flexibility by controlling and varying their components and fractions to tailor their performance ...
Keith Bryce   +3 more
doaj   +1 more source

Deposition of Yb2Si2O7 Environmental Barrier Coatings (EBCs) by Atmospheric Plasma Spray (APS)

open access: yes
Environmental barrier coatings (EBCs) are essential for enhancing the efficiency and durability of SiC-based ceramic matrix composites (CMCs) in gas turbines, enabling higher operating temperatures and reduced emissions.
Arhami, Farzam
core   +1 more source

Recovery of Ytterbium from End-of-Life Yb-Silicate Environmental Barrier Coatings—A Conceptual Study

open access: yesRecycling
The enormously increasing demand for rare earth elements (REE), due to their wide high tech-application areas and their limited and unproportioned reserves across the globe, induced the utilization of secondary resources to provide more robust REE supply
Gözde Alkan   +4 more
doaj   +1 more source

Realizing the excellent oxidation resistance of an environmental barrier coating through aluminum surface modification

open access: yesJournal of Advanced Ceramics
The lifetime of Si-based environmental barrier coatings (EBCs) is constrained by thermally grown SiO2 oxide layer (SiO2-TGO), which can cause premature cracking and spalling.
Lin Dong   +4 more
doaj   +1 more source

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