Results 51 to 60 of about 186,975 (318)

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +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

Breaking the Limitations of Sulfur Redox Kinetics by Accelerated Li+-Desolvation in Lithium–Sulfur Batteries

Nano-Micro Letters
Highlights A catalyst desolvation strategy via phosphorus-modulated Ce single-atom catalysts is proposed to reduce the Li+ desolvation barrier and accelerate reaction kinetics.
Tan Wang, Zhenhua Wang, Xiaotian Gao, Zhe Bai, Wanning Liu, Yu Bai, David Rooney, Kening Sun   +7 more
doaj   +1 more source

Design improvement of circular molten carbonate fuel cell stack through CFD Analysis [PDF]

, 2011
Molten carbonate fuel cell (MCFC) is a promising technology for distributed power generation. The core of an MCFC power generation unit is the stack, where various fuel cells are connected together in series and parallel in order to obtain the desired ...
Sciacovelli, Adriano, Adriano Sciacovelli, Verda, Vittorio, Vittorio Verda   +3 more
core   +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

Surface hydrogen migration significantly promotes electroreduction of acetonitrile to ethylamine

Nature Communications
The electrochemical reduction of acetonitrile (AN) to ethylamine (EA) is an attractive yet challenging process, primarily due to the competing hydrogen evolution reaction (HER).
Yulong Tang, Jiejie Li, Yichao Lin, Moxing Cheng, Shuibo Wang, Ziqi Tian, Junjie Zhou, Haolei Zhang, Yunan Wang, Liang Chen   +9 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

Enhancing Bubble Removal in Geometry‐Optimized Electrodes

Advanced Engineering Materials, EarlyView.
3D‐printed lattice electrodes outperform stochastic foams in alkaline water electrolysis despite 20%–25% lower surface area. Straight flow channels generate Venturi‐like bubble entrainment, suppressing gas accumulation that renders foam interiors electrochemically inactive.
Florian Wiesner, Peter Förster, Alexander Limper, Anselm Brodersen, Matthias Wessling, John Linkhorst   +5 more
wiley   +1 more source

Characterization of membrane electrode assemblies for high-temperature PEM fuel cells

, 2022
S.577-583This paper will present the characterization of two types of membrane-electrode-assemblies (MEAs) for high-temperature polymer electrolyte membrane fuel cells (HT-PEMFC) working under reformate stream.
Alfaro, S., Rau, M., Hjuler, H.A., Niedergesäß, A., Steenberg, T., Cremers, Carsten   +5 more
core   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source