Results 51 to 60 of about 3,722 (261)

Multiferroic‐Centric Materials and Systems Engineering for Battery Applications: An Insight Into Mechanisms, Strategies, and Characterizations

open access: yesAdvanced Science, EarlyView.
Multiferroic order parameters – polarization, magnetization, and ferroelastic strain – are positioned as dynamic design variables for batteries. Their mechanistic roles, practical tuning through fabrication and external fields, and ferroic‐resolved characterization routes are unified into a closed‐loop framework, revealing how coupled ferroic responses
Jiaqi Su   +13 more
wiley   +1 more source

Dynamic Reconstruction‐Engineered Heterointerfaces for Acidic Hydrogen Evolution at Ampere‐Level Current Density

open access: yesAdvanced Science, EarlyView.
A dynamic reconstruction strategy was utilized to construct PtCu/Cu3P heterostructures on the surface of self‐supporting Cu3P nanowires. The loose porosity in the restructured layer, together with a dynamic “dissolution‐redeposition” equilibrium during electrocatalysis, enables the electrode to maintain a low, stable overpotential for 240 h at ampere ...
Kaixi Wang   +3 more
wiley   +1 more source

Numerical Simulation of Heat Transport from the Electric Arc Furnace to the Heat Recovery System

open access: yesCommunications, 2016
The paper presents a numerical model of heat transport from melting charge of the electric arc furnace designed for ferroalloy production, into a cooled roof of the electric arc furnace from which waste heat is led to the heating system of a company. The
Milan Malcho   +4 more
doaj   +1 more source

Enhanced Mechanical Properties Via Boron‐Induced Multi‐Mechanism Strengthening in (NbTaTi1.5V)100‐xBx Refractory High Entropy Alloys

open access: yesAdvanced Science, EarlyView.
A trace amount of boron is introduced into NbTaTi1.5V RHEA, forming a finegrained BCC+TiO+TiB microstructure. The TiB phase generates numerous dislocations, strengthening the alloy. The alloy exhibits 3610 MPa compressive fracture strength and 1060 HV microhardness, while retaining 14.8% fracture strain.
Da Wu   +9 more
wiley   +1 more source

A Discussion on Progress of Domestic Electric Arc Furnace Steelmaking Technology

open access: yesTeshugang, 2010
Domestic electric arc furnace steelmaking technology including output, equipment technique (large-capacity, advanced eccnomic and technic index), high efficiency technology (ultra-high power supply, auxiliary energy source, diversified charging ...
李士琦, 孙华, 郁健, 裴芬
doaj  

The Peculiarities of Convective Heat Transfer in Melt of a Multiple-Electrode Arc Furnace

open access: yesMetals, 2019
The modern direction of improving the technology of steel production in high-power arc furnaces is the intensification of magnetohydrodynamic effects for mixing the melt.
Alexsey Kukharev   +3 more
doaj   +1 more source

Chemically Gradient Ordered Nanodomains Enable Large Tensile Ductility in Gigapascal Lightweight Refractory High‐Entropy Alloys

open access: yesAdvanced Science, EarlyView.
A high‐strength lightweight refractory high‐entropy alloy achieves extraordinary ductility owing to the introduction of coherent chemically gradient ordered nanodomains (CGONs). The CGONs not only serve as effective barriers to dislocation motion (strengthening) but also significantly promote dislocation nucleation and multiplication (ductilizing) upon
Wei Zhang   +3 more
wiley   +1 more source

Changes in Hydrogen Content During Steelmaking

open access: yesArchives of Metallurgy and Materials, 2015
Štore Steel produces steel grades for spring, forging and engineering industry applications. Steelmaking technology consists of scrap melting in Electric Arc Furnace (EAF), secondary metallurgy in Ladle Furnace (LF) and continuous casting of billets (CC).
Vrbek K., Lamut J., Marolt M., Knap M.
doaj   +1 more source

Multi-Physics Modeling of Steel Ingot Melting by Electric Arc Plasma and its Application to Electric Arc Furnace

open access: yesFrontiers in Materials, 2020
Arc melting is one of the commonly-used melting methods in modern material manufacturing. The present study established a numerical model coupling the electric arc plasma, solid melting, and liquid flow together to simulate the steel ingot melting ...
Yuchao Chen   +3 more
doaj   +1 more source

Kresling Origami‐Based Metamaterial Robot for Dynamic Electromagnetic Control

open access: yesAdvanced Science, EarlyView.
A reconfigurable metamaterial system integrates deformable origami units with high‐permittivity ceramic plates. Pneumatic switching between structural states alters local resonance conditions, enabling dynamic radar stealth and adaptive microwave reflection for mobile communication.
Xinxi Zeng   +13 more
wiley   +1 more source

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