Results 91 to 100 of about 45,412 (267)

Hydrogen Fuel Cell Technologies for Decarbonization: Opportunities, Challenges, and Strategic Pathways—A Comprehensive Review

Energy Science &Engineering, EarlyView.
ABSTRACT Hydrogen (H2) fuel cells are increasingly recognized as a cornerstone technology in the global transition toward clean energy due to their high efficiency and zero‐emission characteristics. This review synthesizes recent progress, challenges, and strategic pathways for the deployment of H2 fuel cells across the transportation, power generation,
Yash Sachin Gupta, Aarav Sachin Gupta, Rajkumar Sivanraju, K. R. Padmavathi, Ashok Kumar R., Prajith Prabakar   +5 more
wiley   +1 more source

Grazing-incidence synchrotron radiation diffraction studies on irradiated Ce-doped and pristine Y-stabilized ZrO2 at the Rossendorf beamline

Journal of Synchrotron Radiation
In this work, Ce-doped yttria-stabilized zirconia (YSZ) and pure YSZ phases were subjected to irradiation with 14 MeV Au ions. Irradiation studies were performed to simulate long-term structural and microstructural damage due to self-irradiation in YSZ ...
Volodymyr Svitlyk, Luiza Braga Ferreira dos Santos, Jonas Niessen, Sara Gilson, Julien Marquardt, Stefan Findeisen, Selina Richter, Shavkat Akhmadaliev, Nina Huittinen, Christoph Hennig   +9 more
doaj   +1 more source

Revisiting the Temperature Dependent Ionic Conductivity of Yttria Stabilized Zirconia (YSZ)

, 2017
The temperature dependent conductivity of yttria stabilized zirconia (YSZ) exhibits a bending in Arrhenius’ plots which is frequently discussedintermsoffreeandassociatedoxygenvacancies.However ...
C. Ahamer, A. Opitz, G. Rupp, Juergen Fleig   +3 more
semanticscholar   +1 more source

UV-enhanced sacrificial layer stabilised graphene oxide hollow fibre membranes for nanofiltration [PDF]

, 2015
Graphene oxide (GO) membranes have demonstrated great potential in gas separation and liquid filtration. For upscale applications, GO membranes in a hollow fibre geometry are of particular interest due to the high-efficiency and easy-assembly features at
Aba, NFD, Chong, JY, Li, K, Mattevi, C, Wang, B   +4 more
core   +1 more source

Comparison of the Coating Structure of Silicon‐Based PECVD Coatings With Varying Organic Content

Plasma Processes and Polymers, EarlyView.
Silicon‐based PECVD coatings transition abruptly from organic SiOCH to oxidic SiOx at ~32 at% silicon, exhibiting threshold behavior in barrier performance. Chemical composition seems to dominate over porosity: SiOx coatings unexpectedly show higher porosity yet superior barrier properties, possibly due to rigid cage‐like molecular structures ...
Jonas Franke, Maciej Oskar Liedke, Andreas Schäfer, Maik Butterling, Ahmed Gamal Attallah, Eric Hirschmann, Andreas Wagner, Rainer Dahlmann   +7 more
wiley   +1 more source

Fabrication‐Driven Oxidation Pathways in Y/Hf‐Modified High‐Entropy Alloys: From Elemental Segregation to Oxide Homogeneity

Rare Metals, EarlyView.
ABSTRACT This study elucidates the oxidation mechanisms governing Y/Hf‐doped AlCoCrFeNiTi high‐entropy alloys (HEAs) and reveals the pivotal role of fabrication processes in dictating high‐temperature oxidation behavior. We demonstrate that casting and spark plasma sintering (SPS) promote Y/Hf segregation, resulting in heterogeneous oxide formation and
Huaqing Yi, Jiapeng Zheng, Jiawen Zhang, Yi Yang, Binbin He, Wenjun Lu   +5 more
wiley   +1 more source

Comparison of Sputter-deposited Single and Multilayer Electrolytes based on Gadolinia-doped Ceria and Yttria-stabilized Zirconia for Solid Oxide Fuel Cells

International Journal of Electrochemical Science, 2020
Single and multilayer electrolytes for anode-supported solid-oxide fuel cells (SOFCs) have been prepared by reactive magnetron sputtering and their electrochemical properties have been investigated. Electrolyte layers based on gadolinia-doped ceria (GDC)
Andrey A. Solovyev, Sergey V. Rabotkin, Kairat А. Kuterbekov, Temirgaly A. Koketay, Serik А. Nurkenov, Serikzhan Opakhai, Anna V. Shipilova, Igor V. Ionov, Galina M. Eliseeva   +8 more
doaj   +1 more source

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

, 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, Barnabé, Antoine, Bonino, Jean-Pierre, Dalbin, Michel, Fenech, Justine   +4 more
core   +2 more sources

Novel Non‐Equimolar High‐Entropy Zirconates With Superior Thermophysical Properties

Rare Metals, EarlyView.
ABSTRACT Rare‐earth zirconates (RE2Zr2O7) are promising candidates for topcoat materials in thermal barrier coatings (TBCs). However, their practical application in TBCs is limited by poor fracture toughness and low thermal expansion coefficient (TEC).
Taoyi Lu, Zhiqin Wen, Suzhen Kang, Li Tang, Jiyuan Huang, Gaoxiang Wei, Rui Zhang, Yuhong Zhao   +7 more
wiley   +1 more source

Microstructure Evolution and Impedance Spectroscopy Characterization of Thermal Barrier Coating Exposed to Gas Thermal-shock Environment

Cailiao gongcheng, 2017
Gas thermal-shock experiment of thermal barrier coatings (TBCs) was carried out in air up to 1250℃ in order to simulate the thermal cycling process of the engine blades during the start heating and shut down cooling.
CHEN Wen-long, LIU Min, ZHANG Ji-fu, SONG Jin-bing   +3 more
doaj   +1 more source