Results 91 to 100 of about 7,481 (302)
A New Al2O3‐Protected EB‐PVD TBC with Superior CMAS Resistance
Advanced ScienceCalcium‐magnesium‐aluminium‐silicate (CMAS) attack is a longstanding challenge for yttria stabilized zirconia (YSZ) thermal barrier coatings (TBCs) particularly at higher engine operating temperature.
Shiying Qin +6 more
doaj +1 more source
Improved CMAS corrosion resistance of rare earth niobates by high-entropy and composite design
Journal of Materials Research and TechnologyThis study reports the preparation of two single-phase high-entropy rare-earth niobates (RE1/5Ho1/5Er1/5Y1/5Yb1/5)3NbO7, (RE = Ce, Lu), and two composite-phase high-entropy rare-earth niobates (RE1/5Ho1/5Er1/5Y1/5Yb1/5)3NbO7:(RE1/5Ho1/5Er1/5Y1/5Yb1/5 ...
Liujia Tian +6 more
doaj +1 more source
The aim of this paper is to study the corrosion mechanism of CaO-MgO-Al2O3-SiO2 (CMAS) powder and CMAS + NaVO3 (hereafter referred to as CN) mixed powder on a yttria-stabilized zirconia (YSZ) block at different temperatures.
Yong Shang +6 more
core +1 more source
Development of CMAS resistant thermal barrier coatings: Challenges and implications
, 2022 Thermochemical attack of ingested CaO-MgO-Al2O3-SiO2 (CMAS) particles in thermal-barrier coatings (TBCs) has been an issue of concern for operating aero-engines in dust-laden environments.
Mechnich, P. +3 more
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Nonprofit Governance and Financial Stability: A Study of Government‐Funded Social Services
Nonprofit Management and Leadership, EarlyView.ABSTRACT Nonprofit social service providers are essential in delivering vital services, often with public funding. This study adopts a contingency perspective to explore the relationship between organizational governance and financial stability in publicly funded nonprofit organizations. We use a combination of comparative multilevel analysis (CMA) and
Florentine Maier +4 more
wiley +1 more source
Cyclic Durability of Thermal Barrier Coatings Subject to CMAS Attack
, 2018 Thermal barrier coatings (TBCs) are critical in modern gas turbine engines, increasing operating temperature, efficiency, and component life. Engines have reached temperatures at which ingested debris (CMAS) forms silicate melts that chemically and ...
Harris, Alan
core +1 more source
International Journal of Osteoarchaeology, EarlyView.ABSTRACT The early evolutionary history of modern domestic horses (Equus caballus/Equus ferus caballus), known as the DOM2 lineage, is well documented due to numerous archaeological and ancient DNA (aDNA) studies. Although many uncertainties remain in the domestication timeline, current evidence suggests that the domestication of modern horses began in
Johanna Honka +14 more
wiley +1 more source
Computational tool to accelerate CMAS-resistant TBC design for aero-turbine applications [PDF]
, 2018 Infiltration of molten Calcium-Magnesium Alumino-Silicate (CMAS) deposits is a primary cause of failure of thermal barrier coatings (TBCs) on aero-turbine engine blades.
Levi, Carlos +4 more
core +1 more source
Scientific ReportsThe fracture characteristics of rare-earth phosphate (LuPO4) and silicate (Lu2SiO5) environmental barrier coating (EBC) materials under molten calcium–magnesium aluminosilicate (CMAS) corrosion are analyzed.
Subrato Sarkar +7 more
doaj +1 more source
O Controle social no programa Bolsa Família de Florianópolis [PDF]
, 2007 TCC (graduação) - Universidade Federal de Santa Catarina, Centro Sócio Econômico, Curso de Serviço Social.O presente Trabalho de Conclusão de Curso pretende desenvolver uma análise acerca do controle social exercido sobre o Programa Bolsa Família no ...
Fonseca, Mirian de Lourdes
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