نتایج جستجو برای: soft magnetic powders

تعداد نتایج: 467899  

2001
Q. Huang J. Li X. J. Huang C. K. Ong X. S. Gao

The La0.67Sr0.33MnO3 /BaFe11.3~ZnSn!0.7O19 ~LSMO/BaM! composites have been prepared by cosintering the LSMO and the BaM powders. The microstructural, magnetic, and magnetoresistive ~MR! properties of those systems were systematically studied. Due to the magnetic coupling between the LSMO ~a soft magnet metal! and BaM ~a hard magnet insulator! grains, the low-field MR sensitivity was reduced and...

2014
A. Raj Kumar Ravi Kumar Shilpa Chakra Venkateshwara Rao

The successful application of various nanoplatforms in medicine under in vitro conditions has generated some interest in medicine-nanotechnology. The spinel-type MnZn ferrite nano powders were synthesized by Solution Combustion Synthesis (SCS) method. The important classes of soft magnetic materials Mn-Zn ferrites have high magnetic permeability and low power losses.Mn-Zn-Fe2O4 have a spinal st...

سلامتی, هادی , سهرابی, داود, طلایی, زهرا, عبدالحسینی, اسماعیل , محمدزاده, بتول, مرشدلو, تکتم , پاکزاد, امین, کاملی, پرویز ,

In this paper, Bi1.66Pb0.34Sr2Ca2Cu3O superconductor powders have been prepared via sol-gel and solid-state reaction methods. The structural and magnetic properties have been studied by the X-Ray diffraction (Fullprof analysis) and magnetic susceptibility measurements. The superconductivity and structural properties of the samples have been compared with the properties of a commercially availab...

2014
A. Thabet M. Repetto

Dielectric materials play an important role in broad applications, such as electrical and electromagnetic applications. This research studied the prediction of effective permeability of composite and nanocomposite dielectric materials based on theoretical analysis to specify the effects of embedded magnetic inclusions in enhancing magnetic properties of dielectrics. Effective permeability of Pl...

Journal: :journal of ultrafine grained and nanostructured materials 2013
zahra jamili-shirvan mohsen h. sabzevar

the nanocrystallization of co67fe4cr7si8b14 amorphous ribbons which prepared by planar flow melt spinning process (pfms) was investigated. crystallization of the ribbons was studied by differential thermal analysis (dta), x-ray diffraction (xrd) and transmission electron microscopy (tem). the dta result of amorphous ribbon at heating rate of 10˚c/min showedoccurrence of phase transitions in two...

Journal: :international journal of nano dimension 0
h. bakhtiari department of chemistry, azad university, north tehran branch, tehran, iran. q. s. manuchehri naeini department of chemistry, azad university, north tehran branch, tehran, iran. s. haghighi department of chemistry, azad university, north tehran branch, tehran, iran. m. emamzadeh department of chemistry, azad university, north tehran branch, tehran, iran.

the composite powders of barium-magnesium ferrite were prepared using sol-gel auto-combustion and microwave methods. the crystal structure and the shape of nanocomposites have been compared. x-ray diffraction (xrd), scanning electron microscope (sem) and vibrating sample magnetometer (vsm) were used to investigate the structural, morphological and magnetic properties of nanopowder. the formatio...

عمیقیان, جمشید, مظفری, مرتضی,

In this work ultrafine single phase SrFe12019 powders were prepared using SrCc) and FeCI) as raw material. The materials were then milled in high energy mills for 0.5 to 24 hours. The powders were then calcined between 700 and 1000 °C for 0.5 h with different heating rates. The calcined powders were then washed with deionized water for several times, to remove undesired stontium chloride...

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