采用固相法制备BaZn2Fe16O27铁氧体，将其与葡萄糖溶液混合水热反应，得到铁氧体／碳复合粉体。通过XRD、SEM等表征手段，研究了复合粉体的物相组成、显微结构，并用网络分析仪分析了不同水热反应温度下复合粉体的电磁特性。结果表明，葡萄糖在水热反应后发生碳化，接枝在片状铁氧体表面，得到了铁氧体／碳复合吸收剂；与单一的铁氧体相比，在2～18GHZ频段内，复合粉体的磁损耗有所增加，介电损耗明显增加；在水热反应温度为160℃时，复合粉体的介电损耗值达到最大，介电损耗和磁损耗在2～18GHZ频段内出现多个损耗峰，有利于电磁波的吸收，并且拓宽了吸波频带，增加了其电磁性能，使得吸波效果进一步增加。
Ferrite/carbon composite powder was prepared by hydrothermal reaction of glucose solution and Ba- Zn2Fe16O27 powder synthesized by the solid-state method. The XRD, SEM were used to analyze the structure and the morphology of the composite powder. The vector network analyzer were used to test the electromagnetic performance of the composite absorbent at different hydrothermal reaction temperatures. The results showed that glucose was carbonized after hydrothermal reaction, and grafted on the surface of flake ferrite. The ferrite/ carbon micro-nano composite absorbent was obtained. At the frequency range from 2 to 18GHz, compared with single ferrite, the magnetic loss of composite materials was slightly increased, but the dielectric loss was obviously increased. When the hydrothermal reaction temperature was 160℃, the dielectric loss reached the maximum, and there were dielectric loss peaks and magnetic loss peaks in many places, it was beneficial to the absorption of electromagnetic wave, moreover, the absorbing band of microwave was broadened, the amount of absorbent was reduced, and the absorption effect was further increased.
参考文献
| [1] | S. Chandrasekaran;Srinivasan Ramanathan;Tanmay Basak .Microwave Material Processing—A Review[J].AIChE Journal,2012(2):330-363. |
| [2] | 张秀蓉,刘艳琳,沈远香.隐身新技术及发展趋势[J].四川兵工学报,2009(03):107-109. |
| [3] | Lagarkov, AN;Rozanov, KN .High-frequency behavior of magnetic composites[J].Journal of Magnetism and Magnetic Materials,2009(14):2082-2092. |
| [4] | 陈雪刚,叶瑛,程继鹏.电磁波吸收材料的研究进展[J].无机材料学报,2011(05):449-457. |
| [5] | 陈志彦,邢欣.复合吸收剂T-ZnOw/Fe雷达波吸收性能研究[J].功能材料,2010(z2):257-259. |
| [6] | 钟传鹏,朱正吼,黄渝鸿.Fe基纳米晶/铁氧体复合材料磁粉芯制备及其软磁性能[J].功能材料,2008(11):1795-1798. |
| [7] | 王海滨,刘树信,霍冀川,吕淑珍.无机吸波材料研究进展[J].硅酸盐通报,2008(04):754-758. |
| [8] | Harris, VG;Geiler, A;Chen, YJ;Yoon, SD;Wu, MZ;Yang, A;Chen, ZH;He, P;Parimi, PV;Zuo, X;Patton, CE;Abe, M;Acher, O;Vittoria, C .Recent advances in processing and applications of microwave ferrites[J].Journal of Magnetism and Magnetic Materials,2009(14):2035-2047. |
| [9] | An Yuliang;Sui Hongchao;Yuan Xia et al.Preparation and electromagnetism property of activated carbon loaded with Co0.8 Zn0.2 Fez 04 ferrite[J].Journal of Functional Materials,2012,43(04):438-441. |
| [10] | 王丽熙,张晶,黄啸谷,王洪洲,张其土.铁氧体/石墨复合吸波涂层的微波吸收性能[J].材料科学与工程学报,2011(05):688-691,673. |
| [11] | 赵德旭,李巧玲,叶云.锶铁氧体包覆碳纳米管复合材料的研究[J].化工新型材料,2010(06):31-33,91. |
| [12] | Wenting Wang;Qiaoling Li;Chuanbo Chang .Effect of MWCNTs content on the magnetic and wave absorbing properties of ferrite-MWCNTs composites[J].Synthetic Metals,2011(1/2):44-50. |
| [13] | Chen Keyu;Xiang Chen;Li Liangchao et al.A novel ternary composite fabrication,performanee and applica- tion of expanded graphite/polyaniline/CoFe204 ferrite[J].Journal of Materials Chemistry,2012,22(13):6449-6455. |
| [14] | Qiang Chengwen;Xu Jincheng;Zhang Zhongquan et al.Magnetic properties and microwave absorption prop- erties of carbon fibers coated by Fe3 04 nanopartieles[J].Journal of Alloys and Compounds,2010,506(01):93-97. |
| [15] | 周建华,王涛,王道军,何建平.葡萄糖基碳包覆ZnFeO的合成及其红外发射率研究[J].无机材料学报,2009(05):1045-1048. |
| [16] | WANG Lixi,HUANG Xiaogu,ZHANG Jing,WANG Hongzhou,ZHANG Qitu,XU Naicen.Microstructure and microwave electromagnetic properties of Dy3+-doped W-type hexaferrites[J].稀有金属（英文版）,2011(05):505-509. |
| [17] | Wang Lixi;Sonmg Jie;Zhang Qitu et al.The micro- wave magnetic performance of Sm3+ doped Ba- CoeFe16Oz7[J].Journal of Alloys and Compounds,2009,481(1-2):863-866. |
| [18] | Tsuyoshi Kimura.Magnetoelectric Hexaferrites[J].Annual review of condensed matter physics,2012:93-110. |
| [19] | Wang Lixi;Huang Qiang;Zhang Qitu et al.Influence of Ers+ substitution on microwave magnetic perform- ance of BaFe12019[J].Journal of Rare Earths,2007,25:214-217. |
| [20] | HUANG Xiaogu,ZHANG Jing,WANG Hongzhou,YAN Shaoteng,WANG Lixi,ZHANG Qitu.Er3+-substituted W-type barium ferrite: preparation and electromagnetic properties[J].稀土学报（英文版）,2010(06):940-943. |
| [21] | 向晨,吴春芳,李良超,王观娥.CoSmxFe2-xO4铁氧体纳米粉晶的制备及其电磁性能[J].中国稀土学报,2010(02):201-206. |
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