Results 31 to 40 of about 1,339 (211)

A new highly oxygen-deficient and cubic Pr3ZrO8-δ for intermediate-temperature thermochemical production of oxygen and hydrogen

Nature Communications
Two-step thermochemical cycles offer a clean route for hydrogen and oxygen production but are typically limited to high temperatures exceeding 1500 °C.
Jiaxin Lu, Yongliang Zhang, Luhong Chen, Yan Chen, Ke An, Yasser Shoukry, Xinfang Jin, Zhi-Hao Wang, Sai Mu, Xueling Lei, Kevin Huang   +10 more
doaj   +1 more source

Triple-Conducting Oxide as a Cathode for Solid Oxide Fuel Cells: Review [PDF]

한국정밀공학회지, 2018
Solid oxide fuel cells (SOFCs) are at a technological level close to commercialization, which could be enabled by new material research. Especially, not only an electrolyte, but also a cathode material becomes very important to further increase ...
Taehyun Park
doaj   +1 more source

Unusual Lattice Parameters Behavior for La_1.9Ca_0.1NiO_4+δ at the Temperatures below Oxygen Loss

Crystals, 2022
In this work, we studied the structural features of La1.9Ca0.1NiO4.11, which is considered a promising cathode material for intermediate temperature solid-oxide fuel cells (IT-SOFC). The effect of different pretreatments on the structural characteristics
Denis Mishchenko, Zakhar Vinokurov, Evgeny Gerasimov, Elena Filonova, Alexander Shmakov, Elena Pikalova   +5 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +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

A new design for co-extrusion dies: Fabrication of multi-layer tubes to be used as solid oxide fuel cell

Journal of Science: Advanced Materials and Devices, 2017
Solid oxide fuel cells attract growing attention as an environmentally friendly device that can produce electrical power. Many processing routes are available for fabrication of micro-tubular solid oxide fuel cells, among which extrusion can be ...
Behtash Mani, H.A. Tavakolinia, R. Babaie Moghadam   +2 more
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Artificial neural network modeling and optimization of the Solid Oxide Fuel Cell parameters using grey wolf optimizer

Energy Reports, 2021
Using Green and carbon-free energy sources is a new concept in the energy conversion, power generation, and energy management framework. Since there is a relatively small number of neural network applications in the field of fuel cells, especially in the
Xinxiao Chen, Zhuo Yi, Yiyu Zhou, Peixi Guo, Saeid Gholami Farkoush, Hossein Niroumandi   +5 more
doaj   +1 more source

Multilayer Self‐Limiting Electrospray Deposition via Stepped Voltage Bias

Advanced Engineering Materials, EarlyView.
Self‐limiting electrospray deposition (SLED) uses a high voltage to generate and deposit a charged payload on a target surface. The coating retains its charge, repelling newly arriving material. SLED thickness can be decreased by applying a secondary bias to the target.
Madhuri Deb, S. Rahman Pejman, Alexander Jakimowicz, Jonathan P. Singer   +3 more
wiley   +1 more source

Composite Ag-La0.8Sr0.2MnO3-σ Cathode for Solid Oxide Fuel Cells

Archives of Metallurgy and Materials, 2013
Na powierzchni elektrolitu stałego wytwarzano kompozytowe katody dla stałotlenkowych ogniw paliwowych zbudowane z metalicznego srebra rozproszonego w osnowie z La0.8Sr0,3MnO3-σ Osnowę o kontrolowanej porowatości otrzymywano przez prażenie mieszaniny ...
Mosiałek M., Przybyła M., Tatko M., Nowak P., Dudek M., Zimowska M.   +5 more
doaj   +1 more source