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Journal of Materials Engineering and Performance

Published in:

19-12-2018

Electromagnetic Wave-Absorbing Properties of Steel Slag

Authors: Yinsuo Dai, Jianhua Wu, Derong Wang, Rui Li, Chunhua Lu, Zhongzi Xu

Published in: Journal of Materials Engineering and Performance | Issue 1/2019

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Abstract

This research explores the electromagnetic radiation protection function of steel slag for use as a building material. Scanning electron microscopy, x-ray diffraction, x-ray photoelectron spectroscopy and Mössbauer spectroscopy were used to analyze the chemical composition and mineralogical phase of steel slag powder. Electromagnetic parameters of the samples were analyzed and discussed in detail for the frequency range of 1-18 GHz. We found that steel slag had the electromagnetic wave-absorbing property due to electric components (such as FeO and carbon powder) and magnetic components [such as magnetite (Fe₃O₄) and hematite (α-Fe₂O₃)]; electric loss was far greater than magnetic loss. With the increasing milling time, the electric and magnetic properties were increased. The calculated reflectivity curve of steel slag powder epoxide resin–matrix composite at a thickness of 10 mm had several interference peaks, and the absorbing properties increased gradually with increasing frequency. Moreover, the minimum reflectivity was − 21 dB (Decibel) at 13 GHz (Gigahertz). The steel slag powder cement-based composite showed electromagnetic wave-absorbing properties at 10-18 GHz, and the greatest absorption of the 25 mm sample reached 11.5 dB; therefore, the steel slag shows promise as a building material for electromagnetic protection.

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Title: Electromagnetic Wave-Absorbing Properties of Steel Slag
Authors: Yinsuo Dai
Jianhua Wu
Derong Wang
Rui Li
Chunhua Lu
Zhongzi Xu
Publication date: 19-12-2018
Publisher: Springer US
Published in: Journal of Materials Engineering and Performance / Issue 1/2019
Print ISSN: 1059-9495
Electronic ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-018-3831-7

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