نتایج جستجو برای: soft magnetic powders

تعداد نتایج: 467899  

In this research work, an improved two-dimensional semi-analytical subdomain based method for performance computation in IPM machine considering infinite-/finite-magnetic material permeability in pseudo-Cartesian coordinates by using hyperbolic functions has been presented. In the developed technique, all subdomains are divided into periodic or non-periodic regions with homogeneous or non-homog...

Journal: :Journal of physics 2023

Abstract The interfusion of impurities such as metallic wear debris has been a major issue in the manufacturing process foods, medicines and industrial products. Such originates with wearing stainless-steel pipe joints or mechanical moving parts. Since shows ferromagnetic properties by undergoing strain-induced martensitic transformation non-magnetic SUS304 (X5CrNi18-10), magnetic separation sy...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Guo Zhan Lum Zhou Ye Xiaoguang Dong Hamid Marvi Onder Erin Wenqi Hu Metin Sitti

Shape-programmable matter is a class of active materials whose geometry can be controlled to potentially achieve mechanical functionalities beyond those of traditional machines. Among these materials, magnetically actuated matter is particularly promising for achieving complex time-varying shapes at small scale (overall dimensions smaller than 1 cm). However, previous work can only program thes...

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2009
Chinping Chen Lin He Lin Lai Hua Zhang Jing Lu Lin Guo Yadong Li

Fine powders of micron- and submicron-sized particles of undoped Cu(2)O semiconductor, with three different sizes and morphologies, have been synthesized by different chemical processes. These samples include nanospheres 200 nm in diameter, octahedra of size 1 µm and polyhedra of size 800 nm. They exhibit a wide spectrum of magnetic properties. At low temperature, T = 5 K, the octahedron sample...

Single phase Mn0.8Zn0.2Fe2O4 powders were synthesized by solution combustion method. The solution combustion method relies on the exothermic self-sustained reactions in reactive solution containing of oxidizers and organic fuels. In this work, the effects of various amounts of glycine as fuel on the powder characteristics were investigated. The structure, cation distribution, microstructure, ma...

2008
Girija S. Chaubey Vikas Nandwana Narayan Poudyal Ping Liu

Bimagnetic FePt/CoFe2O4 nanoparticles having a bricklike morphology were synthesized by growing a soft magnetic CoFe2O4 phase on FePt cubic nanoparticle seeds. The size of the soft phase could be controlled by tuning the material ratio of the FePt seeds to the CoFe2O4 component. To obtain magnetic hardening, the as-synthesized bricklike nanoparticles were annealed at elevated temperatures under...

Journal: :Journal of the Magnetics Society of Japan 1996

2006
L. Austrin M. Torabzadeh - Tari G. Engdahl

A trend of increased Electric Power in Aircraft stresses the need of robust, low weight systems with low losses. New hard and soft magnetic materials have made it feasible to work with high speed and high frequency. Applications of new soft magnetic materials and hard magnetic materials like NeFeB magnets have enabled high density power generation systems. A new concept comprising a high speed ...

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