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首页 > 过刊浏览>2024年第27卷第4期 >291-298. DOI:10.3969/j.issn.1007-9629.2024.04.002
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硫氧镁泡沫水泥吸波材料的制备及性能
作者:
作者单位:

沈阳理工大学 材料科学与工程学院，辽宁 沈阳 110159

作者简介:

崔宝栋（1995—），男，辽宁辽阳人，沈阳理工大学博士生.E-mail：cuibaodong@163.com

通讯作者:

刘 军（1963—），女，辽宁沈阳人，沈阳理工大学教授，博士生导师，博士.E-mail：lj@sylu.edu.cn

中图分类号:

TQ172

基金项目:

国防基础科研计划项目


Preparation and Properties of Magnesium Oxysulfide Foam Cement Microwave Absorbing Material
Author:
Affiliation:

School of Materials Science and Engineering， Shenyang Ligong University， Shenyang 110159， China

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    摘要:

    采用具有优良吸波性能的铁氧体和碳化硅来改性硫氧镁水泥泡沫板，研究了铁氧体和碳化硅掺量对改性硫氧镁水泥吸波性能的影响，并通过X射线衍射及扫描电子显微镜分析了其影响机理.结果表明：在3.95~18.00 GHz目标频段下，掺加5%碳化硅改性硫氧镁水泥的最低反射率出现在8.40 GHz处，为-15.9 dB；掺加15%铁氧体改性硫氧镁水泥的最低反射率出现在7.04 GHz处，为-17.3 dB；铁氧体和碳化硅按照一定比例掺加到硫氧镁水泥基体中，均表现出良好的吸波性能.

    Abstract:

    Ferrite and silicon carbide with excellent electromagnetic microwave absorption performance were used to modify magnesium oxysulfide cement foam plate. The influence of different doping amount of ferrite and silicon carbide on the microwave absorbing perfermance of modified magnesium oxysulfate cement was studied. The effect mechanism was analyzed by X-ray diffraction and scanning electron microscopy. The results show that in the target frequency band of 3.95-18.00 GHz， 5% silicon carbide can make the material reach the lowest reflectivity， which is -15.9 dB at 8.40 GHz. 15% ferrite can make the material reach the lowest reflectivity， which is -17.3 dB at 7.04 GHz. The modified magnesium oxysulfide cement has good microwave absorbing perfermance when ferrite and silicon carbide were added to the magnesium oxysulfide cement matrix at a certain proportion.

    表 2 硫氧镁水泥基吸波材料的配合比Table 2 Mix proportions of magnesium oxysulfide cement based absorbing materials
    表 1 轻烧氧化镁的化学组成Table 1 Chemical composition（by mass） of light burned magnesium
    图1 单层平板材料示意图Fig.1 Schematic diagram of the single-layer plate material
    图2 弓形法测试反射率示意图Fig.2 Schematic diagram of reflectivity measurement by bow method
    图3 不同硫氧镁水泥的XRD图谱Fig.3 XRD patterns of different magnesium thioxide cements
    图4 样品S5的SEM图片、机理分析和元素分布Fig.4 SEM images， mechanism and element distributions of sample S5
    图5 样品F15的SEM图片、机理分析和元素分布Fig.5 SEM images， mechanism and element distributions of sample F15
    图6 泡沫板材料吸波机理图Fig.6 Plot of wave absorption mechanism of foam plate material
    图7 不同碳化硅掺量硫氧镁水泥泡沫板的吸波性能Fig.7 Wave absorption properties of magnesium thiooxide cement foam plate with different silicon carbide contents
    图8 不同铁氧体掺量硫氧镁水泥泡沫板的吸波性能Fig.8 Wave absorption properties of the cement foam plate with different ferrite contents
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崔宝栋,刘军,李思琪,李瑶,邓永刚.硫氧镁泡沫水泥吸波材料的制备及性能[J].建筑材料学报,2024,27(4):291-298

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  • 收稿日期:2023-05-23
  • 最后修改日期:2023-09-14
  • 在线发布日期: 2024-05-11
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