Preparation of CoFe alloy nanoparticles with tunable electromagnetic wave absorption performance

Y. X. Gong; L. Zhen; J. T. Jiang; C. Y. Xu; W. Z. Shao

doi:10.1016/j.jmmm.2009.07.019

Preparation of CoFe alloy nanoparticles with tunable electromagnetic wave absorption performance

Y. X. Gong
, L. Zhen^*
, J. T. Jiang
, C. Y. Xu
, W. Z. Shao

^*Corresponding author for this work

Harbin Institute of Technology

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

56 Scopus citations

Abstract

CoFe alloy nanoparticles with different particle sizes were successfully prepared by hydrogen-thermal reduction of CoFe₂O₄ microspheres at different temperatures. It was found that the real part of the permeability of the CoFe alloy nanoparticles increased with the decrease of the particle size, and accordingly the reflection loss (RL) peak moved towards the low-frequency region. The maximum RL of the coating based on CoFe alloy nanoparticles exceeded -23 dB, and a wide effective absorption band width (RL≤-10 dB) of about 6 GHz was simultaneously achieved. The EMA performance was confirmed to be tunable by the control of the absorber's particle size, and thus a new clue for the design of the EMA applications was supplied.

Original language	English
Pages (from-to)	3702-3705
Number of pages	4
Journal	Journal of Magnetism and Magnetic Materials
Volume	321
Issue number	22
DOIs	https://doi.org/10.1016/j.jmmm.2009.07.019
State	Published - Nov 2009
Externally published	Yes

Keywords

CoFe alloy nanoparticle
Electromagnetic property
Electromagnetic wave absorption performance
Hydrogen-thermal reduction

Access to Document

10.1016/j.jmmm.2009.07.019

Cite this

@article{f229f5c6c8e14a94a87356d3df6d43d5,

title = "Preparation of CoFe alloy nanoparticles with tunable electromagnetic wave absorption performance",

abstract = "CoFe alloy nanoparticles with different particle sizes were successfully prepared by hydrogen-thermal reduction of CoFe2O4 microspheres at different temperatures. It was found that the real part of the permeability of the CoFe alloy nanoparticles increased with the decrease of the particle size, and accordingly the reflection loss (RL) peak moved towards the low-frequency region. The maximum RL of the coating based on CoFe alloy nanoparticles exceeded -23 dB, and a wide effective absorption band width (RL≤-10 dB) of about 6 GHz was simultaneously achieved. The EMA performance was confirmed to be tunable by the control of the absorber's particle size, and thus a new clue for the design of the EMA applications was supplied.",

keywords = "CoFe alloy nanoparticle, Electromagnetic property, Electromagnetic wave absorption performance, Hydrogen-thermal reduction",

author = "Gong, \{Y. X.\} and L. Zhen and Jiang, \{J. T.\} and Xu, \{C. Y.\} and Shao, \{W. Z.\}",

year = "2009",

month = nov,

doi = "10.1016/j.jmmm.2009.07.019",

language = "英语",

volume = "321",

pages = "3702--3705",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier B.V.",

number = "22",

}

TY - JOUR

T1 - Preparation of CoFe alloy nanoparticles with tunable electromagnetic wave absorption performance

AU - Gong, Y. X.

AU - Zhen, L.

AU - Jiang, J. T.

AU - Xu, C. Y.

AU - Shao, W. Z.

PY - 2009/11

Y1 - 2009/11

N2 - CoFe alloy nanoparticles with different particle sizes were successfully prepared by hydrogen-thermal reduction of CoFe2O4 microspheres at different temperatures. It was found that the real part of the permeability of the CoFe alloy nanoparticles increased with the decrease of the particle size, and accordingly the reflection loss (RL) peak moved towards the low-frequency region. The maximum RL of the coating based on CoFe alloy nanoparticles exceeded -23 dB, and a wide effective absorption band width (RL≤-10 dB) of about 6 GHz was simultaneously achieved. The EMA performance was confirmed to be tunable by the control of the absorber's particle size, and thus a new clue for the design of the EMA applications was supplied.

AB - CoFe alloy nanoparticles with different particle sizes were successfully prepared by hydrogen-thermal reduction of CoFe2O4 microspheres at different temperatures. It was found that the real part of the permeability of the CoFe alloy nanoparticles increased with the decrease of the particle size, and accordingly the reflection loss (RL) peak moved towards the low-frequency region. The maximum RL of the coating based on CoFe alloy nanoparticles exceeded -23 dB, and a wide effective absorption band width (RL≤-10 dB) of about 6 GHz was simultaneously achieved. The EMA performance was confirmed to be tunable by the control of the absorber's particle size, and thus a new clue for the design of the EMA applications was supplied.

KW - CoFe alloy nanoparticle

KW - Electromagnetic property

KW - Electromagnetic wave absorption performance

KW - Hydrogen-thermal reduction

UR - https://www.scopus.com/pages/publications/69549124232

U2 - 10.1016/j.jmmm.2009.07.019

DO - 10.1016/j.jmmm.2009.07.019

M3 - 文章

AN - SCOPUS:69549124232

SN - 0304-8853

VL - 321

SP - 3702

EP - 3705

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 22

ER -

Preparation of CoFe alloy nanoparticles with tunable electromagnetic wave absorption performance

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this