| 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. |
| 关键词: 硫氧镁水泥 碳化硅 铁氧体 吸波性能 |
| DOI：10.3969/j.issn.1007-9629.2024.04.002 |
| 分类号:TQ172 |
| 基金项目:国防基础科研计划项目 |
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| Preparation and Properties of Magnesium Oxysulfide Foam Cement Microwave Absorbing Material |
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CUI Baodong, LIU Jun, LI Siqi, LI Yao, DENG Yonggang
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School of Materials Science and Engineering， Shenyang Ligong University， Shenyang 110159， China
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| 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. |
| Key words: magnesium oxysulfide cement silicon carbide ferrite microwave absorbing performance |
