Results 101 to 110 of about 345,231 (310)

Numerical study on AC loss of an HTS coil placed on laminated silicon steel sheets with distorted AC transport currents

open access: yes, 2020
AC loss is an intractable and inevitable issue on high temperature superconducting (HTS) coils. In some HTS devices with the iron core, AC loss in HTS coils have been investigated.
Jiang, J   +10 more
core  

Electrochemical Evaluation of Compressed Selective Laser Melted AlSi7Mg and AlSi10Mg Alloys in Chloride Environment

open access: yesAdvanced Engineering Materials, EarlyView.
The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin   +2 more
wiley   +1 more source

The Basics of AC Losses in Superconductors

open access: yesTEION KOGAKU (Journal of the Cryogenic Society of Japan), 2009
The basic topics for AC losses in superconductors are reviewed briefly. The AC losses are affected by various factors such as the variation in critical current density, strong nonlinearity of transport property and the complicated electromagnetic environment in superconducting apparatus.
openaire   +2 more sources

Enhancing Strength and Electrical Conductivity in Al–Zr–Sc Conductor Alloys Through Sn and Sr Microalloying and Two‐Step Aging Treatment

open access: yesAdvanced Engineering Materials, EarlyView.
Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao   +3 more
wiley   +1 more source

Self-heating and ac losses in superconductors

open access: yesPhysica C: Superconductivity, 2003
Abstract Self-heating induced by ac loss in superconductors under different thermal boundary conditions has been investigated numerically. Self-heating effect results in non-uniform distributions of temperature and critical current density in superconductors. The self-heating effect is also sensitive to the thermal boundary conditions.
Cheng, CH, Zhao, Yong
openaire   +2 more sources

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

open access: yesAdvanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai   +6 more
wiley   +1 more source

Fully superconducting machine for electric aircraft propulsion : study of AC loss for HTS stator [PDF]

open access: yes, 2020
Fully superconducting machines provide the high power density required for future electric aircraft propulsion. However, superconducting windings generate AC losses in AC electrical machine environments.
Yuan, Weijia   +4 more
core  

CRITICAL CURRENT DENSITIES AND N-VALUES OF MGB2 CONDUCTORS FOR SMES, MRI, AND LOW AC LOSS APPLICATIONS. [PDF]

open access: yesIEEE Trans Appl Supercond, 2023
Kwon J   +6 more
europepmc   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang   +10 more
wiley   +1 more source

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