Results 1 to 10 of about 602,748 (266)

Coercivity enhancement of Nd-Fe-B hot-deformed magnets by the eutectic grain boundary diffusion process using Nd-Ga-Cu and Nd-Fe-Ga-Cu alloys

open access: yesAIP Advances, 2018
Nd80Ga15Cu5 and Nd62Fe14Ga20Cu4 alloys were used as diffusion sources for the eutectic grain boundary diffusion process, applying to 4 mm-thick Nd-Fe-B hot-deformed magnets.
Lihua Liu   +8 more
doaj   +1 more source

Direct observation of magnetization reversal of hot-deformed Nd-Fe-B magnet

open access: yesAIP Advances, 2018
The dynamic magnetic domain structure in magnetization and demagnetization process of hot-deformed and NdCu-diffused Nd2Fe14B magnets were in-situ observed by Lorentz transmission electron microscopy (LTEM).
Xiaoyun Zhu   +9 more
doaj   +1 more source

Magnetic properties of doped Mn-Ga alloys made by mechanical milling and heat treatment

open access: yesAIP Advances, 2016
Mn-Ga alloys have shown hard magnetic properties, even though these alloys contain no rare-earth metals. However, much work is needed before rare-earth magnets can be replaced.
Daniel R. Brown   +4 more
doaj   +1 more source

Preparation of Ultrahigh Molecular Weight Polyethylene/Graphene Nanocomposite In situ Polymerization via Spherical and Sandwich Structure Graphene/Sio2 Support

open access: yesNanoscale Research Letters, 2018
Reduced graphene oxide/SiO2 (RGO/SiO2) serving as a novel spherical support for Ziegler-Natta (Z-N) catalyst is reported. The surface and interior of the support has a porous architecture formed by RGO/SiO2 sandwich structure.
Enqi Su   +7 more
doaj   +1 more source

Elucidating the Role of Intralayer Cation Ordering and Disordering in Li0.6[Li0.2Mn0.8]O2 Cathode Materials

open access: yesCarbon Energy
Full‐manganese (Mn) Li‐rich materials have gained attention owing to the limited availability of cobalt‐ or nickel‐based cathodes commonly used in batteries, which greatly restricts their potential for large‐scale application.
Huaifang Shang   +11 more
doaj   +1 more source

Recent Progress in Electrical Generators for Oceanic Wave Energy Conversion

open access: yesIEEE Access, 2020
Oceanic wave energy extraction through electrical generator is one of the most interesting topics in the field of power engineering. Almost all the existing relevant review paper focus on electrical generator with the working principle of electromagnetic
Abidur Rahman   +3 more
doaj   +1 more source

Removal of Mercury (II) by EDTA-Functionalized Magnetic CoFe2O4@SiO2 Nanomaterial with Core-Shell Structure

open access: yesNanomaterials, 2019
In order to reduce the difficulty and risk of operation, decrease the preparation time and improve the adsorption performance of magnetic nano-silicon adsorbent with core-shell structure, a carboxylated CoFe2O4@SiO2 was prepared by EDTA-functionalized ...
Kai Xia   +4 more
doaj   +1 more source

A near-infrared ratio fluorescent probe achieves mitochondrial hydrogen polysulfide imaging for monitoring ferroptosis in arthritis

open access: yesSynthetic and Systems Biotechnology
Reactive sulfur (RSS) is a type of sulfur-containing molecule widely present in biological systems. Hydrogen polysulfide (H2Sn, n > 1), as a member of the active sulfur family, plays an indispensable role in many physiological and pathological processes.
Ting Cao   +5 more
doaj   +1 more source

Strain-Induced Robust Exchange Bias Effect in Epitaxial La0.7Sr0.3MnO3/LaFeO3 Bilayers

open access: yesMolecules
The ground state of correlated electrons in complex oxide films can be controlled by applying epitaxial strain, offering the potential to produce unexpected phenomena applicable to modern spintronic devices.
Jun Zhang, Tiancong Su, Jianchun Ma
doaj   +1 more source

A Passive and Wireless Sensor for Bone Plate Strain Monitoring

open access: yesSensors, 2017
This paper reports on a sensor for monitoring bone plate strain in real time. The detected bone plate strain could be used for judging the healing state of fractures in patients.
Yisong Tan   +5 more
doaj   +1 more source

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