Electromagnetic wave absorption properties of mechanically alloyed FeCoNiCrAl high entropy alloy powders

Peipei Yang; Ying Liu; Xiuchen Zhao; Jingwei Cheng; Hong Li

doi:10.1016/j.apt.2016.03.023

Electromagnetic wave absorption properties of mechanically alloyed FeCoNiCrAl high entropy alloy powders

Peipei Yang, Ying Liu^*, Xiuchen Zhao, Jingwei Cheng, Hong Li

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

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

76 Citations (Scopus)

Abstract

FeCoNiCrAl high entropy alloy powders with flaky shape were prepared by mechanical alloying in a planetary ball milling machine for 70 h. The electromagnetic response behavior and electromagnetic wave absorption property of the powders (70 wt% powders) dispersed in the paraffin matrix were investigated as a function of frequency in the range of 2–18 GHz. We found that the calculated reflection loss (RL) was shown that the minimum RL reached −35.3 dB at 10.35 GHz with a matching layer thickness of 1.5 mm and an effective absorption bandwidth of 2.7 GHz (9.2–11.9 GHz), indicating FeCoNiCrAl high entropy alloy powders have excellent electromagnetic wave absorption properties.

Original language	English
Pages (from-to)	1128-1133
Number of pages	6
Journal	Advanced Powder Technology
Volume	27
Issue number	4
DOIs	https://doi.org/10.1016/j.apt.2016.03.023
Publication status	Published - 1 Jul 2016

Keywords

Electromagnetic wave absorption properties
FeCoNiCrAl high entropy alloy powders
Mechanical alloying
Reflection loss

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10.1016/j.apt.2016.03.023

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title = "Electromagnetic wave absorption properties of mechanically alloyed FeCoNiCrAl high entropy alloy powders",

abstract = "FeCoNiCrAl high entropy alloy powders with flaky shape were prepared by mechanical alloying in a planetary ball milling machine for 70 h. The electromagnetic response behavior and electromagnetic wave absorption property of the powders (70 wt% powders) dispersed in the paraffin matrix were investigated as a function of frequency in the range of 2–18 GHz. We found that the calculated reflection loss (RL) was shown that the minimum RL reached −35.3 dB at 10.35 GHz with a matching layer thickness of 1.5 mm and an effective absorption bandwidth of 2.7 GHz (9.2–11.9 GHz), indicating FeCoNiCrAl high entropy alloy powders have excellent electromagnetic wave absorption properties.",

keywords = "Electromagnetic wave absorption properties, FeCoNiCrAl high entropy alloy powders, Mechanical alloying, Reflection loss",

author = "Peipei Yang and Ying Liu and Xiuchen Zhao and Jingwei Cheng and Hong Li",

note = "Publisher Copyright: {\textcopyright} 2016",

year = "2016",

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doi = "10.1016/j.apt.2016.03.023",

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TY - JOUR

T1 - Electromagnetic wave absorption properties of mechanically alloyed FeCoNiCrAl high entropy alloy powders

AU - Yang, Peipei

AU - Liu, Ying

AU - Zhao, Xiuchen

AU - Cheng, Jingwei

AU - Li, Hong

PY - 2016/7/1

Y1 - 2016/7/1

N2 - FeCoNiCrAl high entropy alloy powders with flaky shape were prepared by mechanical alloying in a planetary ball milling machine for 70 h. The electromagnetic response behavior and electromagnetic wave absorption property of the powders (70 wt% powders) dispersed in the paraffin matrix were investigated as a function of frequency in the range of 2–18 GHz. We found that the calculated reflection loss (RL) was shown that the minimum RL reached −35.3 dB at 10.35 GHz with a matching layer thickness of 1.5 mm and an effective absorption bandwidth of 2.7 GHz (9.2–11.9 GHz), indicating FeCoNiCrAl high entropy alloy powders have excellent electromagnetic wave absorption properties.

AB - FeCoNiCrAl high entropy alloy powders with flaky shape were prepared by mechanical alloying in a planetary ball milling machine for 70 h. The electromagnetic response behavior and electromagnetic wave absorption property of the powders (70 wt% powders) dispersed in the paraffin matrix were investigated as a function of frequency in the range of 2–18 GHz. We found that the calculated reflection loss (RL) was shown that the minimum RL reached −35.3 dB at 10.35 GHz with a matching layer thickness of 1.5 mm and an effective absorption bandwidth of 2.7 GHz (9.2–11.9 GHz), indicating FeCoNiCrAl high entropy alloy powders have excellent electromagnetic wave absorption properties.

KW - Electromagnetic wave absorption properties

KW - FeCoNiCrAl high entropy alloy powders

KW - Mechanical alloying

KW - Reflection loss

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DO - 10.1016/j.apt.2016.03.023

M3 - Article

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SN - 0921-8831

VL - 27

SP - 1128

EP - 1133

JO - Advanced Powder Technology

JF - Advanced Powder Technology

IS - 4

ER -

Electromagnetic wave absorption properties of mechanically alloyed FeCoNiCrAl high entropy alloy powders

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