Structure and magnetic properties of FeCo-SiO2 nanocomposite synthesized by a novel wet chemical method

Xuegang Lu; Gongying Liang; Yumei Zhang

doi:10.1016/j.matlet.2007.03.069

Structure and magnetic properties of FeCo-SiO₂ nanocomposite synthesized by a novel wet chemical method

Xuegang Lu
, Gongying Liang
, Yumei Zhang

School of Physics

Xi'an Jiaotong University

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

A novel soft magnetic nanocomposite with FeCo particles encapsulated by amorphous SiO₂ was synthesized using a co-precipitation combined H₂ reduction method. The saturation magnetization of the (Fe₇₀Co₃₀)₉₀/(SiO₂)₁₀ nanocomposite is as high as 200 emu/g, which is 4-5 times larger than that of traditional spinel ferrites. The frequency dependence of the complex initial permeability is intensely dependent upon the content of SiO₂ insulating phase. With increasing the content of SiO₂ to 10 wt.%, the cut-off frequency is drastically increased to over 1 GHz. The results show that a new high-frequency soft magnetic material with high saturation magnetization (M_s) can be achieved by introducing FeCo/SiO₂ nanocomposite.

Original language	English
Pages (from-to)	4928-4931
Number of pages	4
Journal	Materials Letters
Volume	61
Issue number	27
DOIs	https://doi.org/10.1016/j.matlet.2007.03.069
State	Published - Nov 2007

Keywords

FeCo-SiO
Magnetic materials
Nanocomposites
Permeability

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10.1016/j.matlet.2007.03.069

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@article{238daad026764b1ab7d18473b2ac7565,

title = "Structure and magnetic properties of FeCo-SiO2 nanocomposite synthesized by a novel wet chemical method",

abstract = "A novel soft magnetic nanocomposite with FeCo particles encapsulated by amorphous SiO2 was synthesized using a co-precipitation combined H2 reduction method. The saturation magnetization of the (Fe70Co30)90/(SiO2)10 nanocomposite is as high as 200 emu/g, which is 4-5 times larger than that of traditional spinel ferrites. The frequency dependence of the complex initial permeability is intensely dependent upon the content of SiO2 insulating phase. With increasing the content of SiO2 to 10 wt.\%, the cut-off frequency is drastically increased to over 1 GHz. The results show that a new high-frequency soft magnetic material with high saturation magnetization (Ms) can be achieved by introducing FeCo/SiO2 nanocomposite.",

keywords = "FeCo-SiO, Magnetic materials, Nanocomposites, Permeability",

author = "Xuegang Lu and Gongying Liang and Yumei Zhang",

year = "2007",

month = nov,

doi = "10.1016/j.matlet.2007.03.069",

language = "英语",

volume = "61",

pages = "4928--4931",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

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}

TY - JOUR

T1 - Structure and magnetic properties of FeCo-SiO2 nanocomposite synthesized by a novel wet chemical method

AU - Lu, Xuegang

AU - Liang, Gongying

AU - Zhang, Yumei

PY - 2007/11

Y1 - 2007/11

N2 - A novel soft magnetic nanocomposite with FeCo particles encapsulated by amorphous SiO2 was synthesized using a co-precipitation combined H2 reduction method. The saturation magnetization of the (Fe70Co30)90/(SiO2)10 nanocomposite is as high as 200 emu/g, which is 4-5 times larger than that of traditional spinel ferrites. The frequency dependence of the complex initial permeability is intensely dependent upon the content of SiO2 insulating phase. With increasing the content of SiO2 to 10 wt.%, the cut-off frequency is drastically increased to over 1 GHz. The results show that a new high-frequency soft magnetic material with high saturation magnetization (Ms) can be achieved by introducing FeCo/SiO2 nanocomposite.

AB - A novel soft magnetic nanocomposite with FeCo particles encapsulated by amorphous SiO2 was synthesized using a co-precipitation combined H2 reduction method. The saturation magnetization of the (Fe70Co30)90/(SiO2)10 nanocomposite is as high as 200 emu/g, which is 4-5 times larger than that of traditional spinel ferrites. The frequency dependence of the complex initial permeability is intensely dependent upon the content of SiO2 insulating phase. With increasing the content of SiO2 to 10 wt.%, the cut-off frequency is drastically increased to over 1 GHz. The results show that a new high-frequency soft magnetic material with high saturation magnetization (Ms) can be achieved by introducing FeCo/SiO2 nanocomposite.

KW - FeCo-SiO

KW - Magnetic materials

KW - Nanocomposites

KW - Permeability

UR - https://www.scopus.com/pages/publications/34548845309

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DO - 10.1016/j.matlet.2007.03.069

M3 - 文章

AN - SCOPUS:34548845309

SN - 0167-577X

VL - 61

SP - 4928

EP - 4931

JO - Materials Letters

JF - Materials Letters

IS - 27

ER -

Structure and magnetic properties of FeCo-SiO₂ nanocomposite synthesized by a novel wet chemical method

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