Results 21 to 30 of about 3,128 (236)

Structure, Phase Composition and Properties of Surface Layers of the Titanium after Electroexplosive Doping with Yttrium and Electron-Beam Processing

Успехи физики металлов, 2015
Modification of surface layer of technically pure titanium is carried out by the combined method combining electroexplosive doping with yttrium and subsequent irradiation by high-intensity electron beam with parameters as follow: energy density of ...
V. E. Gromov, K. V. Sosnin, Yu. F. Ivanov, O. A. Semina
doaj   +1 more source

A Comprehensive Review on Two-Step Thermochemical Water Splitting for Hydrogen Production in a Redox Cycle

Energies, 2022
The interest in and need for carbon-free fuels that do not rely on fossil fuels are constantly growing from both environmental and energetic perspectives. Green hydrogen production is at the core of the transition away from conventional fuels. Along with
Daphne Oudejans, Michele Offidani, Achilleas Constantinou, Stefania Albonetti, Nikolaos Dimitratos, Atul Bansode   +5 more
doaj   +1 more source

Enhancing strength and ductility of Nb alloy via Y addition by vacuum electromagnetic levitation melting under oxygen carrier route

Journal of Materials Research and Technology
Niobium (Nb) is considered as candidate material for heat pipe in space nuclear reactors due to high melting point, low density, excellent compatibility with alkali liquid metals, irradiation resistance, workability and welding performance, but low ...
Zhaokun Song, Xiaoxin Zhang, Mingyu Shao, Yanchang Liu, Bin Liang, Zhangjun Bai, Qingzhi Yan   +6 more
doaj   +1 more source

In Situ Nanoscale Dynamics Imaging in a Proton‐Conducting Solid Oxide for Protonic Ceramic Fuel Cells

Advanced Science, 2022
Hydrogen fuel cells and electrolyzers operating below 600 °C, ideally below 400 °C, are essential components in the clean energy transition. Yttrium‐doped barium zirconate BaZr0.8Y0.2O3‐d (BZY) has attracted a lot of attention as a proton‐conducting ...
Oleg Gorobtsov, Yumeng Song, Kevin Fritz, Daniel Weinstock, Yifei Sun, Dina Sheyfer, Wonsuk Cha, Jin Suntivich, Andrej Singer   +8 more
doaj   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg, Thomas W. Pfeifer, Chuanzhen Zhou, Yong Kyu Choi, Duk‐Hyun Choe, Patrick E. Hopkins, Jon F. Ihlefeld   +6 more
wiley   +1 more source

Yttrium Oxide Nanowires

, 2010
Yttrium is one of the most important rare-earth elements. Yttrium compounds show promise for applications such as high quality phosphors, catalysts, up-conversion materials and fine ceramics because of their optical, catalytic properties and high-temperature stability.
Nan Li, Kazumichi Yanagisaw
openaire   +2 more sources

Insights on enhancing the adhesion of inkjet-printed europium-doped yttrium oxide by tailoring interfacial bonding environments

Materials & Design
Inkjet printing of metal nitrate precursors and subsequent annealing offers a facile and scalable route toward tailoring metal oxides in well-defined patterns.
Yujuan He, Jeffrey A. Dhas, Kijoon Lee, Milad Ghayoor, V. Vinay K. Doddapaneni, Anton T. Escher, Somayeh Pasebani, Brian K. Paul, Chih-hung Chang   +8 more
doaj   +1 more source

Role of Liquid Composition in the Transient Liquid Assisted Growth of Superconducting YBa2Cu3O7‐δ Films

Advanced Materials, EarlyView.
The Y supersaturation in the [Ba‐Cu(I/II)‐O] transient liquid composition is the driving force toward YBCO nucleation and growth in TLAG. Tuning the initial (Ba:Cu) molar ratio in the ink composition determines the YBCO epitaxial nucleation through supersaturation control.
Lavinia Saltarelli, Diana García, Laia Soler, Elzbieta Pach, Kapil Gupta, Daniel Sanchez‐Rodriguez, Jordi Aguilar, Víctor Fuentes, Eduardo Solano, Cristian Mocuta, Jordi Farjas, Xavier Obradors, Teresa Puig   +12 more
wiley   +1 more source

Influence of Obtainment Conditions and Excitation Into Spectral and Kinetic Characteristics of Cathodoluminescence in Y₂O₃:Eu Thin Films

Фізика і хімія твердого тіла, 2018
The spectra and kinetics of the rise and decay of the cathodoluminescence (CL) of thin films of Y2O3:Eu obtained by RF-magnetron sputtering was investigated. Based on the shape of the CL spectra at different excitation energies, showed the possibility of
O. M. Bordun, I. O. Bordun, I. Yo Kukharskyy, I. I. Polovynko   +3 more
doaj   +1 more source