Results 1 to 10 of about 50,805 (272)

Block Magnets with Uniform Core–Shell Microstructure Regenerated from NdFeB Grain Boundary Diffusion Sheet Magnets [PDF]

open access: yesNanomaterials
The grain boundary diffusion (GBD) process is currently the relatively effective method for utilizing heavy rare earth (HRE) elements in NdFeB magnets, especially for magnetic sheets.
Xiangheng Zhuge   +10 more
doaj   +2 more sources

Quantitative Residual Stress Analysis in Steel Structures Using EMAT Nonlinear Acoustics [PDF]

open access: yesSensors
Residual stress plays a critical role in the durability and structural integrity of steel rolls and bars. Proper analysis helps prevent defects like warping or cracking, ensuring the steel meets quality standards and performs reliably in critical ...
Kaleeswaran Balasubramaniam   +2 more
doaj   +2 more sources

Facile Synthesis of Nd2Fe14B Hard Magnetic Particles with Microwave-Assisted Hydrothermal Method

open access: yesMolecules, 2023
The synthesis of Nd-Fe-B magnetic powders via chemical techniques presents significant promise, but poses challenges due to their inherent chemical instability.
Ling Wang, Xiaofen Xu
doaj   +1 more source

Effects of Fe, Mn Individual Doping and (Fe, Mn) Co-Doping on Ferromagnetic Properties of Co2Si Powders

open access: yesNanomaterials, 2022
Magnetic materials are crucial energy materials that are widely used in day-to-day life. Therefore, the development and study of high-performance magnetic materials are of great significance.
Jiang Zou   +4 more
doaj   +1 more source

Structural and magnetic properties of chemically synthesized yttrium-substituted nickel nanoferrite [PDF]

open access: yesJournal of Particle Science and Technology, 2022
In this paper, yttrium-substituted nickel ferrite (NiY2xFe2-2xO4) nanostructures were synthesized via the co-precipitation method with different concentrations of yttrium (x = 0.00, 0.02, 0.06, and 0.12 %, where x is the dopant concentration in molar ...
Atefeh Azizi Moghaddam   +1 more
doaj   +1 more source

FRACTAL ANALYSIS OF THE NANOSTRUCTURE OF A HETEROGENEOUS HIGH COERCITY ALLOY

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
The atomic force microscopy was used to obtain images of the nanostructure of components of a heterogeneous intermetallic SmCoCuFeZr compound in a highly coercive state.
E.M. Semenova   +5 more
doaj   +1 more source

Relationship between coercivity and stress of X80 pipeline steel

open access: yesYou-qi chuyun, 2022
The operation environment along the long-distance oil and gas pipelines is complex, and the abnormal external load during pipeline operation may lead to local stress concentration, which will increase the operation risk of pipeline.The coercivity-based ...
CHENG Fanju   +5 more
doaj   +1 more source

What makes Law Coercive when it is Coercive [PDF]

open access: yesArchiv für Rechts- und Sozialphilosophie, 2021
Most legal and political philosophers agree that typical legal systems are coercive. But there is no extant account of what typically makes typical legal systems coercive when they are coercive. This paper presents such an account and compares it with four alternative views. Towards the end I discuss the proposed account’s payoffs.
openaire   +1 more source

Coercive Trade Policy [PDF]

open access: yesAmerican Economic Journal: Microeconomics, 2014
Coercion is used by one government (the “sender”) to influence the trade practices of another (the “target”). We build a two-country trade model in which coercion can be exercised unilaterally or channeled through a “weak” international organization without enforcement powers.
Anesi V., Facchini G.
openaire   +5 more sources

Most frequently asked questions about the coercivity of Nd-Fe-B permanent magnets

open access: yesScience and Technology of Advanced Materials, 2021
Physically, the coercivity of permanent magnets should scale with the anisotropy field of ferromagnetic compounds, HA; however, the typical coercivity values of commercial polycrystalline sintered magnets are only ~0.2 HA, which is known as Brown’s ...
Jiangnan Li   +4 more
doaj   +1 more source

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