Effect of Dy, Pr on microwave absorption properties of Ce2Co17 alloy

Effect of Dy, Pr on microwave absorption properties of Ce2Co17 alloy The RexCe2−xCo17 (Re = Dy, Pr, x = 0, 0.1, 0.2, 0.4) alloy was prepared by a combination use method of arc melting and high-energy ball milling and the phase structure, morphology and electromagnetic parameters were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and vector network analyzer (VNA), respectively. The consequences demonstrate that the particle size has a decreasing tendency and the minimum absorption peak frequency offsets to a low frequency band with increasing Re (Dy, Pr). The reflectivity of DyxCe2−xCo17 (x = 0, 0.1, 0.2, 0.4) alloy increase first and then decrease with the addition of Dy content, and the Dy0.2Ce1.8Co17 alloy can achieve the minimum RL of − 39.16 dB (microwave absorption rate 99.988%) at 8 GHz with the thickness of 1.8 mm. The microwave absorbing properties of PrxCe2−xCo17 (x = 0, 0.1, 0.2, 0.4) alloy can be optimized with the doping of Pr and the minimum RL of Pr0.2Ce1.8Co17 can reach to − 36.8 dB (microwave absorption rate 99.979%) at 7.92 GHz, and the bandwidth of R < − 10 dB is 2.24 GHz with the best matching thickness condition of 1.8 mm. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science: Materials in Electronics Springer Journals

Effect of Dy, Pr on microwave absorption properties of Ce2Co17 alloy

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Publisher
Springer US
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Materials Science; Optical and Electronic Materials; Characterization and Evaluation of Materials
ISSN
0957-4522
eISSN
1573-482X
D.O.I.
10.1007/s10854-018-9379-3
Publisher site
See Article on Publisher Site

Abstract

The RexCe2−xCo17 (Re = Dy, Pr, x = 0, 0.1, 0.2, 0.4) alloy was prepared by a combination use method of arc melting and high-energy ball milling and the phase structure, morphology and electromagnetic parameters were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and vector network analyzer (VNA), respectively. The consequences demonstrate that the particle size has a decreasing tendency and the minimum absorption peak frequency offsets to a low frequency band with increasing Re (Dy, Pr). The reflectivity of DyxCe2−xCo17 (x = 0, 0.1, 0.2, 0.4) alloy increase first and then decrease with the addition of Dy content, and the Dy0.2Ce1.8Co17 alloy can achieve the minimum RL of − 39.16 dB (microwave absorption rate 99.988%) at 8 GHz with the thickness of 1.8 mm. The microwave absorbing properties of PrxCe2−xCo17 (x = 0, 0.1, 0.2, 0.4) alloy can be optimized with the doping of Pr and the minimum RL of Pr0.2Ce1.8Co17 can reach to − 36.8 dB (microwave absorption rate 99.979%) at 7.92 GHz, and the bandwidth of R < − 10 dB is 2.24 GHz with the best matching thickness condition of 1.8 mm.

Journal

Journal of Materials Science: Materials in ElectronicsSpringer Journals

Published: May 29, 2018

References

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