Results 81 to 90 of about 3,248,561 (300)

Magnetic properties of Fe-1.5wt% Si high-frequency powder cores

open access: yesAIP Advances, 2019
Electro-magnetic devices, such as motors and inductors, have been continuously required to increase their operation frequency for high efficiency. To satisfy this requirement, Fe-Si powder cores with high electrical resistance have been attracted much ...
Kwiyoung Lee   +4 more
doaj   +1 more source

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

open access: yesAdvanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim   +17 more
wiley   +1 more source

Influence of Atomization Parameters on Sphericity and Soft Magnetic Properties of FeSiBNbCu Nanocrystalline Powders

open access: yesMetals
Hybrid atomization represents a novel method for powder production with high cooling and crushing capacities, but previous studies have primarily focused on tin and aluminum alloy systems. In present study, FeSiBNbCu nanocrystalline powders were prepared
Huan Chen   +7 more
doaj   +1 more source

Element 2 Core Assessment Plan Template Core General Education Assessment, 2019-2020

open access: yes, 2020
The AACU Math Literacy Rubric for Element 2 - Mathematics as part of the institution’s ongoing general education Core assessment ...
Undergraduate Core Oversight Committee, Wright State University
core  

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

High-Frequency Model of the Toroidal Powder Core and Winding of a Litz Wire

open access: yesEnergies
A high-frequency model of the toroidal powder core inductor with litz wire winding is presented. In the analyzed model, the power losses that occurred in both the winding and the magnetic core were taken into account.
Marcin Pawlak, Urszula Pawlak
doaj   +1 more source

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

open access: yesAdvanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil   +14 more
wiley   +1 more source

Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics

open access: yesAdvanced Materials, EarlyView.
Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón   +6 more
wiley   +1 more source

Wet chemistry-synthesized Fe/mixed ferrite soft magnetic composites for high-frequency power conversion

open access: yesAIP Advances
State-of-the-art soft magnetic (SM) alloy systems such as electrical steels and permalloys exhibit large eddy current losses at high-frequency (kHz range and above), limiting their application in fast switching devices. Eddy current losses can be reduced
Ward Burgess   +2 more
doaj   +1 more source

Element 6 Core Assessment Plan Template Core General Education Assessment, 2018-2019

open access: yes, 2019
The Core Assessment Plant Template for Element 6 - Natural Science as part of the institution’s ongoing general education Core assessment ...
Undergraduate Core Oversight Committee, Wright State University
core  

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