| 纳米Mn-Zn铁氧体电磁吸波水泥基材料的制备与性能 |
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| 引用本文： | 吕林女,王全超,何永佳,孙珂珂.纳米Mn-Zn铁氧体电磁吸波水泥基材料的制备与性能[J].硅酸盐通报,2018,37(3):767-771. |
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| 作者姓名： | 吕林女 王全超 何永佳 孙珂珂 |
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| 作者单位： | 武汉理工大学理学院,武汉 430070;武汉理工大学硅酸盐建筑材料国家重点实验室,武汉 430070;武汉理工大学硅酸盐建筑材料国家重点实验室,武汉,430070 |
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| 基金项目： | 国家自然科学基金(51372183,51461135005) |
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| 摘 要： | 利用化学共沉淀法制备纳米Mn-Zn铁氧体磁流体,再以一定比例将其掺入水泥浆体制备吸波层,以膨胀珍珠岩作为匹配层,制备双层水泥基吸波材料,研究了不同纳米组分掺入量对该种水泥基材料吸波性能的影响.结果表明:纳米Mn-Zn铁氧体吸波砂浆在厚度(20+10)mm、掺量7%时,在8~18 GHz频段内反射率都小于-10 dB,最小反射率为18 GHz处的-15.1 dB.
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| 关 键 词： | 纳米Mn-Zn铁氧体 双层水泥基吸波材料 磁流体 反射率 |
Preparation and Properties of Nano Mn-Zn Ferrite Electromagnetic Wave Absorbing Cement-based Materials |
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| LYU Lin-nv,WANG Quan-chao,HE Yong-jia,SUN Ke-ke.Preparation and Properties of Nano Mn-Zn Ferrite Electromagnetic Wave Absorbing Cement-based Materials[J].Bulletin of the Chinese Ceramic Society,2018,37(3):767-771. |
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| Authors: | LYU Lin-nv WANG Quan-chao HE Yong-jia SUN Ke-ke |
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| Abstract: | Nano Mn-Zn ferrite magnetic fluid was prepared by chemical coprecipitation method,and then was added to the cement paste to prepare the wave absorbing layer with a certain proportion.Double layer cement-based wave absorbing materials were prepared by using expanded perlite as a matching layer,and the effects of the content of nano Mn-Zn ferrite on absorbing properties of the cement-based wave absorbing materials were investigated.The results show that the reflectivity of nano Mn-Zn ferrite wave absorbing mortar is less than -10 dB in the range of 8-18 GHz,and the minimum reflectivity is -15.1 dB at 18 GHz,when the thickness is(20+10)mm and content is 7%. |
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| Keywords: | nano Mn-Zn ferrite double layer cement-based wave absorbing material magnetic fluid reflectivity |
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