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Microstructure, Electromagnetic Properties, and Microwave Absorption Mechanism of SiO(2)-MnO-Al(2)O(3) Based Manganese Ore Powder for Electromagnetic Protection
Considering the electromagnetic protection needs of important ground buildings, exploring the electromagnetic wave (EMW) absorption performance of manganese ore powder (MOP) building materials is an effective way to overcome its low added value and difficulty in popularizing. Here, choosing filling...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9227126/ https://www.ncbi.nlm.nih.gov/pubmed/35744883 http://dx.doi.org/10.3390/molecules27123758 |
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author | Cai, Rui Zheng, Wei Yang, Pingan Rao, Jinsong Huang, Xin Wang, Dashuang Du, Zhilan Yao, Kexin Zhang, Yuxin |
author_facet | Cai, Rui Zheng, Wei Yang, Pingan Rao, Jinsong Huang, Xin Wang, Dashuang Du, Zhilan Yao, Kexin Zhang, Yuxin |
author_sort | Cai, Rui |
collection | PubMed |
description | Considering the electromagnetic protection needs of important ground buildings, exploring the electromagnetic wave (EMW) absorption performance of manganese ore powder (MOP) building materials is an effective way to overcome its low added value and difficulty in popularizing. Here, choosing filling ratios commonly used in building materials such as autoclaved bricks, MOP/paraffin samples with 20%, 40%, and 60% mass fraction of MOP were prepared, and electromagnetic properties were analyzed at 2–18 GHz using the coaxial method. The results show that 60 wt% sample has the best absorption performance, with a minimum reflection loss (RL(min)) value of −22.06 dB at 15.04 GHz, and the effective absorption bandwidth (EAB, RL < −10 dB) reaches 4.16 GHz at a 7.65 mm absorber thickness, covering most of the Ku-band region. The excellent microwave absorption performance of MOP is due to its multi-oxide forming multi-interface structure and rough surface, which can not only form abundant dipole and interfacial polarization under the action of EMW, but also reflect and scatter the incident EMW, prolong the transmission path, and enhanced the absorption of microwaves. This study demonstrates that MOP building materials can have excellent microwave absorption properties, thus becoming a new way to address harmful manganese residue; for example, autoclaved bricks, which can not only improve the added value of manganese residue building materials but also can be consumed on a large scale. It provides a new idea to solve the harm of manganese residue. |
format | Online Article Text |
id | pubmed-9227126 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-92271262022-06-25 Microstructure, Electromagnetic Properties, and Microwave Absorption Mechanism of SiO(2)-MnO-Al(2)O(3) Based Manganese Ore Powder for Electromagnetic Protection Cai, Rui Zheng, Wei Yang, Pingan Rao, Jinsong Huang, Xin Wang, Dashuang Du, Zhilan Yao, Kexin Zhang, Yuxin Molecules Article Considering the electromagnetic protection needs of important ground buildings, exploring the electromagnetic wave (EMW) absorption performance of manganese ore powder (MOP) building materials is an effective way to overcome its low added value and difficulty in popularizing. Here, choosing filling ratios commonly used in building materials such as autoclaved bricks, MOP/paraffin samples with 20%, 40%, and 60% mass fraction of MOP were prepared, and electromagnetic properties were analyzed at 2–18 GHz using the coaxial method. The results show that 60 wt% sample has the best absorption performance, with a minimum reflection loss (RL(min)) value of −22.06 dB at 15.04 GHz, and the effective absorption bandwidth (EAB, RL < −10 dB) reaches 4.16 GHz at a 7.65 mm absorber thickness, covering most of the Ku-band region. The excellent microwave absorption performance of MOP is due to its multi-oxide forming multi-interface structure and rough surface, which can not only form abundant dipole and interfacial polarization under the action of EMW, but also reflect and scatter the incident EMW, prolong the transmission path, and enhanced the absorption of microwaves. This study demonstrates that MOP building materials can have excellent microwave absorption properties, thus becoming a new way to address harmful manganese residue; for example, autoclaved bricks, which can not only improve the added value of manganese residue building materials but also can be consumed on a large scale. It provides a new idea to solve the harm of manganese residue. MDPI 2022-06-10 /pmc/articles/PMC9227126/ /pubmed/35744883 http://dx.doi.org/10.3390/molecules27123758 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Cai, Rui Zheng, Wei Yang, Pingan Rao, Jinsong Huang, Xin Wang, Dashuang Du, Zhilan Yao, Kexin Zhang, Yuxin Microstructure, Electromagnetic Properties, and Microwave Absorption Mechanism of SiO(2)-MnO-Al(2)O(3) Based Manganese Ore Powder for Electromagnetic Protection |
title | Microstructure, Electromagnetic Properties, and Microwave Absorption Mechanism of SiO(2)-MnO-Al(2)O(3) Based Manganese Ore Powder for Electromagnetic Protection |
title_full | Microstructure, Electromagnetic Properties, and Microwave Absorption Mechanism of SiO(2)-MnO-Al(2)O(3) Based Manganese Ore Powder for Electromagnetic Protection |
title_fullStr | Microstructure, Electromagnetic Properties, and Microwave Absorption Mechanism of SiO(2)-MnO-Al(2)O(3) Based Manganese Ore Powder for Electromagnetic Protection |
title_full_unstemmed | Microstructure, Electromagnetic Properties, and Microwave Absorption Mechanism of SiO(2)-MnO-Al(2)O(3) Based Manganese Ore Powder for Electromagnetic Protection |
title_short | Microstructure, Electromagnetic Properties, and Microwave Absorption Mechanism of SiO(2)-MnO-Al(2)O(3) Based Manganese Ore Powder for Electromagnetic Protection |
title_sort | microstructure, electromagnetic properties, and microwave absorption mechanism of sio(2)-mno-al(2)o(3) based manganese ore powder for electromagnetic protection |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9227126/ https://www.ncbi.nlm.nih.gov/pubmed/35744883 http://dx.doi.org/10.3390/molecules27123758 |
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