Results 51 to 60 of about 1,736,862 (288)

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

open access: yesAdvanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang   +12 more
wiley   +1 more source

Axial field permanent magnet DC motor with powder iron armature [PDF]

open access: yes, 2007
The paper describes a double-gap axial field permanent magnet (PM) dc motor whose double-layer armature wave winding is constructed of copper strips.
Mohammad, Mohammad T.   +1 more
core   +1 more source

Dopant Distribution in Ga‐Implanted CdO—A Correlative Microscopy and Molecular Dynamics Study

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates that ion implantation offset angle could modulate carrier concentration and mobility in cadmium oxide thin films. Combining correlative microscopy workflow and molecular dynamics simulations, this study reveals the control of interfacial cluster density with tailoring implantation angles, and the optimum offset angle that ...
Morvarid Ghorbani   +7 more
wiley   +1 more source

Rotor integrity design for a high-speed modular air-cored axial-flux permanent-magnet generator [PDF]

open access: yes, 2011
The rotor integrity design for a high-speed modular air-cored axial-flux permanent-magnet (AFPM) generator is presented. The main focus is on the mechanical parametric optimization of the rotor, which becomes a more dominating design issue over ...
Luk, Patrick Chi-Kwong   +5 more
core   +1 more source

Investigation Into the Axial Vibration Behaviour of Helical Windings With a Transposition Structure Under External Short‐Circuit Faults

open access: yesIET Electric Power Applications
Low‐voltage helical windings, typically constructed with multiple parallel continuous transposed cables (CTCs), often include transposition structures.
Yi Zhao   +6 more
doaj   +1 more source

Research on the Influence of Compression and Offset of Cushion Blocks on the Axial Strength of Transformers

open access: yesApplied Sciences, 2023
The instability of the winding-cushion structure is one of the primary causes of transformer failures. Insulation cushion compression and offset are the predominant forms leading to structural instability. Therefore, this paper, using the SFSZ7-31500/110
Lu Sun   +5 more
doaj   +1 more source

Molecular Rotors: From Newtonian Fluids to Functional Materials as Viscosity and Temperature Sensing Tools

open access: yesAdvanced Functional Materials, EarlyView.
Molecular rotors are fluorescent molecules that are sensitive to viscosity and temperature variations in the environment. They exhibit a direct correlation between fluorescence and viscosity within Newtonian fluids. However, this correlation becomes less straightforward in complex systems.
Flavia Di Scala   +6 more
wiley   +1 more source

Research on a novel axial-flux magnetic-field-modulated brushless double-rotor machine with low axial force and high efficiency

open access: yesAIP Advances, 2017
The axial-flux magnetic-field-modulated brushless double-rotor machine (MFM-BDRM) is a possible alternative as a power-split device for hybrid electric vehicles (HEVs).
Chengde Tong   +4 more
doaj   +1 more source

Fiber‐reinforced Liquid Metal Composites With Automated Circuit Fabrication for Structurally‐Integrated Power Transfer

open access: yesAdvanced Functional Materials, EarlyView.
Fiber‐reinforced liquid metal composites (FibRe LMCs) are introduced that combine GPa‐scale structural performance with digitally programmable electrical conductivity. Through automated CNC activation, conductive pathways and wireless power transfer circuits are fabricated directly within load‐bearing composites, enabling structurally integrated ...
John Joyce   +5 more
wiley   +1 more source

Research on Electromagnetic Force Distribution and Deformation Uniformity of Tube Electromagnetic Bulging Based on Concave Magnetic Field Shaper

open access: yesIEEE Access, 2021
Tube uneven radial deformation along the axial direction is one of the main technical problems of tube electromagnetic bulging, which restricts the wide advancement of this technology. In order to improve the uniformity of tube radial deformation, a tube
Li Qiu   +7 more
doaj   +1 more source

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