期刊
ADVANCED POWDER TECHNOLOGY
卷 27, 期 4, 页码 1128-1133出版社
ELSEVIER
DOI: 10.1016/j.apt.2016.03.023
关键词
FeCoNiCrAl high entropy alloy powders; Mechanical alloying; Electromagnetic wave absorption properties; Reflection loss
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. Published by Elsevier B.V. on behalf of The Society of Powder Technology Japan. All rights reserved.
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