نتایج جستجو برای: hexaferrite

تعداد نتایج: 389  

Journal: :Journal of the Magnetics Society of Japan 1998

Journal: :Physical review applied 2023

By performing density-functional calculations, we find a giant magnetocrystalline anisotropy (MCA) constant in abundant element cerium ($\mathrm{Ce}$) substituted M-type hexaferrite, the energetically favorable strontium site, assisted by quantum confined electron transfer from $\mathrm{Ce}$ to specific iron ($2a$) site. Remarkably, calculated electronic structure shows that leads formation of ...

Journal: :Journal of applied electrical engineering 2022

Analyzing the material composition of iron sand from Cilacap beach and Taluk Kuantan in Riau. In this research, synthesis barium M-Hexaferrite is made beach, research method, test was carried out using analysis with FTIR test. The characteristics that has an Fe content 86.53% does not carry refining. while 82.86% purified. Based on wave number value, BAM doped Cu best value highest transmittanc...

2012
Liaoyu Wang Dunhui Wang Qingqi Cao Yuanxia Zheng Haicheng Xuan Jinlong Gao Youwei Du

In the single-phase multiferroics, the coupling between electric polarization (P) and magnetization (M) would enable the magnetoelectric (ME) effect, namely M induced and modulated by E, and conversely P by H. Especially, the manipulation of magnetization by an electric field at room-temperature is of great importance in technological applications, such as new information storage technology, fo...

Journal: :Nanoscale research letters 2016
Juhua Luo Pan Shen Wei Yao Cuifeng Jiang Jianguang Xu

Strontium ferrite nanoparticles were prepared by a coprecipitation method, and reduced graphene oxide/strontium ferrite/polyaniline (R-GO/SF/PANI) ternary nanocomposites were prepared by in situ polymerization method. The morphology, structure, and magnetic properties of the ternary nanocomposites were investigated by X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FT-I...

Journal: :Symmetry 2021

Neuroevolutionary models are used to predict magnetic hysteresis for barium hexaferrites (to hexaferrites). Magnetic a specific set of samples hexaferrite doped with titanium were measured experimentally at room temperature and reported before. Neural networks trained using these experimental data in order generate magnetization various concentrations titanum. We present the prediction methods ...

2012
A. Mahgoob A. Y. Hudeish

Samples examined in this experimental work were in the form of hexagonal barium ferrite with various temperatures annealing. Barium hexaferrite (BaFe12O19), is of great importance as permanent magnets, particularly for magnetic recording as well as in microwave devices. The variation of the temperatures annealing was found to affect coercivity, mean effective anisotropy field, magnetic viscosit...

2016
J. Dufour R. Latorre C. Negro F. López-Mateos E. Alcalá A. Formoso

Presently, the ferrites industry consumes large amounts of iron osides obtained by spray roasting of steel pickling liquors. The aim of this paper is to propose the synthesis of optimal iron osidcs by oxyprecipitation of steel pickling liquors in order to obtain Bahexafenite wit11 high magnetic properties using the ceramic process. As a raw material. i t was used sulphuric liqoors with iron con...

2012
V. V. Nguyen

Influence of replacing Sr ions by rare-earth ions (RE) ions on the structural and magnetic properties of high coercivity (Hc) SrFe10Al2O19 hexaferrite have been investigated using X-ray diffraction, transmission electron microscopy, differential scanning calorimeter, and SQUID. A 73% increase in intrinsic coercivity is observed for Al doped SrFe10Al2O19 as compared to that of pure SrFe12O19. Th...

2015
Shipeng Shen Yisheng Chai Young Sun

The magnetoelectric effects in multiferroic materials enable the mutual control of electric polarization by a magnetic field and magnetization by an electric field. Nonvolatile electric-field control of magnetization is extremely important for information storage applications, but has been rarely realized in single-phase multiferroic materials. Here we demonstrate the prominent direct and conve...

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