Study on enhanced microwave absorption characteristics of annealed Fe3O4

Qisi Ma; Xiuhui Xu; Jinhua Yin; Xiang Li; Xingwang Cheng

doi:10.1007/s10854-022-09147-z

Study on enhanced microwave absorption characteristics of annealed Fe₃O₄

Qisi Ma, Xiuhui Xu, Jinhua Yin, Xiang Li^*, Xingwang Cheng

^*Corresponding author for this work

School of Material Science and Engineering

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

7 Citations (Scopus)

Abstract

Fe₃O₄ was synthesized by the hydrothermal method in one step. The grain size, morphology, and microwave absorption performances were modified effectively by heat treatment in a vacuum environment at different temperatures. Compared with the Fe₃O₄ before annealing, the minimum reflection loss value of Fe₃O₄ after annealing at 850 °C reaches − 27.5 dB at a thickness of 1.6 mm, with the effective absorption band reaching 5.68 GHz (10.32 GHz to 16 GHz). This result is due to the emergence of the second-phase Fe₂O₃ in Fe₃O₄ after annealing at 850 °C. The interfacial coupling between Fe₃O₄ and Fe₂O₃ leads to additional polarization. Moreover, the considerable absorption bandwidth resulted from better impedance matching and excellent attenuation performance. Therefore, it has broad application prospects as a microwave absorber.

Original language	English
Pages (from-to)	24260-24275
Number of pages	16
Journal	Journal of Materials Science: Materials in Electronics
Volume	33
Issue number	31
DOIs	https://doi.org/10.1007/s10854-022-09147-z
Publication status	Published - Nov 2022

Access to Document

10.1007/s10854-022-09147-z

Cite this

@article{d5a12a6148614786a10f1827c6ce7795,

title = "Study on enhanced microwave absorption characteristics of annealed Fe3O4",

abstract = "Fe3O4 was synthesized by the hydrothermal method in one step. The grain size, morphology, and microwave absorption performances were modified effectively by heat treatment in a vacuum environment at different temperatures. Compared with the Fe3O4 before annealing, the minimum reflection loss value of Fe3O4 after annealing at 850 °C reaches − 27.5 dB at a thickness of 1.6 mm, with the effective absorption band reaching 5.68 GHz (10.32 GHz to 16 GHz). This result is due to the emergence of the second-phase Fe2O3 in Fe3O4 after annealing at 850 °C. The interfacial coupling between Fe3O4 and Fe2O3 leads to additional polarization. Moreover, the considerable absorption bandwidth resulted from better impedance matching and excellent attenuation performance. Therefore, it has broad application prospects as a microwave absorber.",

author = "Qisi Ma and Xiuhui Xu and Jinhua Yin and Xiang Li and Xingwang Cheng",

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.",

year = "2022",

month = nov,

doi = "10.1007/s10854-022-09147-z",

language = "English",

volume = "33",

pages = "24260--24275",

journal = "Journal of Materials Science: Materials in Electronics",

issn = "0957-4522",

publisher = "Springer New York",

number = "31",

}

TY - JOUR

T1 - Study on enhanced microwave absorption characteristics of annealed Fe3O4

AU - Ma, Qisi

AU - Xu, Xiuhui

AU - Yin, Jinhua

AU - Li, Xiang

AU - Cheng, Xingwang

PY - 2022/11

Y1 - 2022/11

N2 - Fe3O4 was synthesized by the hydrothermal method in one step. The grain size, morphology, and microwave absorption performances were modified effectively by heat treatment in a vacuum environment at different temperatures. Compared with the Fe3O4 before annealing, the minimum reflection loss value of Fe3O4 after annealing at 850 °C reaches − 27.5 dB at a thickness of 1.6 mm, with the effective absorption band reaching 5.68 GHz (10.32 GHz to 16 GHz). This result is due to the emergence of the second-phase Fe2O3 in Fe3O4 after annealing at 850 °C. The interfacial coupling between Fe3O4 and Fe2O3 leads to additional polarization. Moreover, the considerable absorption bandwidth resulted from better impedance matching and excellent attenuation performance. Therefore, it has broad application prospects as a microwave absorber.

AB - Fe3O4 was synthesized by the hydrothermal method in one step. The grain size, morphology, and microwave absorption performances were modified effectively by heat treatment in a vacuum environment at different temperatures. Compared with the Fe3O4 before annealing, the minimum reflection loss value of Fe3O4 after annealing at 850 °C reaches − 27.5 dB at a thickness of 1.6 mm, with the effective absorption band reaching 5.68 GHz (10.32 GHz to 16 GHz). This result is due to the emergence of the second-phase Fe2O3 in Fe3O4 after annealing at 850 °C. The interfacial coupling between Fe3O4 and Fe2O3 leads to additional polarization. Moreover, the considerable absorption bandwidth resulted from better impedance matching and excellent attenuation performance. Therefore, it has broad application prospects as a microwave absorber.

UR - http://www.scopus.com/inward/record.url?scp=85139255353&partnerID=8YFLogxK

U2 - 10.1007/s10854-022-09147-z

DO - 10.1007/s10854-022-09147-z

M3 - Article

AN - SCOPUS:85139255353

SN - 0957-4522

VL - 33

SP - 24260

EP - 24275

JO - Journal of Materials Science: Materials in Electronics

JF - Journal of Materials Science: Materials in Electronics

IS - 31

ER -

Study on enhanced microwave absorption characteristics of annealed Fe₃O₄

Abstract

Access to Document

Other files and links

Fingerprint

Cite this