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羰基铁粉-碳纤维水泥基复合材料的吸波性能

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Abstract:

采用海军研究实验室反射率测试系统,研究了单掺碳纤维和复掺羰基铁粉碳纤维水泥基复合材料在2~18GHz频率段的吸波性能。利用扫描电镜和X射线衍射仪分析了复合材料微观结构和组成成分的变化。结果表明单掺碳纤维时,在2~8GHz低频率段,反射率随碳纤维掺量增加逐渐增强;在8~18GHz高频率段,随碳纤维掺量增加,复合材料吸波性能波动较大。与单掺0.6%碳纤维复合材料相比,复掺羰基铁粉碳纤维复合材料在2~4GHz低频率段,吸波性能无明显改善;在4~12GHz频率段,反射率下降;在12~18GHz高频率段,最小反射率为-11.9dB,且吸收频带宽达7.3GHz,呈完全吸收性。羰基铁粉有效地拓宽了复合材料在高频率段对电磁波的吸收频宽,但随掺量增加,吸波性能变化范围较小。

References

[1]  刘顺华, 郭辉进. 电磁屏蔽与吸波材料[J]. 功能材料与器件学报, 2002, 8(3): 213-217. LIU Shunhua, GUO Huijing. J Funct Mater Devices (in Chinese), 2002, 8(3): 213-217. [2] LI Kezhi, WANG Chuang, LI Hejun, et al. Effect of chemical vapor deposition treatment of carbon fibers on the reflectivity of carbon fiber-reinforced cement-based composites [J]. J Mater Sci Technol, 2008, 68(5): 1105-1114. [3] 李克智, 王闯, 李贺军, 等. 碳纤维增强水泥基复合材料(CFRC)的电磁性能[J]. 炭素技术, 2010, 29(1): 33-40. LI Kezhi, WANG Chuang, LI Hejun, et al. Carbon Techniques (in Chinese), 2010, 29(1): 33-40. [4] 李克智, 王闯, 李贺军, 等. Reflectivity of carbon fiber-reinforced cement based composites against electromagnetic waves [J]. 稀有金属材料与工程, 2007, 36(10): 1702-1708. LI Kezhi, WANG Chuang, LI Hejun, et al. Rare Metal Mater Eng (in Chinese), 2007, 36(10): 1702-1708. [5] 欧进萍, 高雪松, 韩宝国. 碳纤维水泥基材料吸波性能与隐身效能分析[J]. 硅酸盐学报, 2006, 34(8): 901-907. OU Jinping, GAO Xuesong, HAN Baoguo. J Chin Ceram Soc (in Chinese), 2006, 34(8): 901-907. [6] 熊国宣, 邓敏, 徐玲玲, 等. 水泥基复合材料的吸波性能[J]. 硅酸盐学报, 2004, 32(10): 1281-1284. XIONG Guoxuan, DENG Min, XU Lingling, et al. J Chin Ceram Soc (in Chinese), 2004, 32(10): 1281-1284. [7] FU X L, CHUNG DDL. Submicron carbon filament cement matrix composites for electromagnetic interference shielding [J]. Cement Concr Res, 1996, 26(10): 1467-1472. [8] CAO J Y, CHUNG DDL. Use of fly ash as an admixture for electromagnetic interference shielding [J]. Cement Concr Res, 2004, 34(10): 1889-1892. [9] LAUKAITIS A, SINICA M, BALEVICIUS S. Investigation of electromagnetic wave absorber based on carbon fiber reinforced aerated concrete using time-domain method [J]. Acta Phys Polonica A, 2008, 113(3): 1047-1050. [10] YU Dongxiu, ChENG Jiang, YANG Zhuoru. Performance of polyaniline-coated short carbon fibers in electromagnetic shielding coating [J]. J Mater Sci Technol, 2007, 23(4): 529-534. [11] SHI Zhengqiang, CHUNG D D L. Concrete for magnetic shielding [J]. Cement Concr Res, 1995, 25(5): 939-944. [12] 赵彦波, 刘顺华, 管洪涛. 水泥基多孔复合材料吸波性能[J]. 硅酸盐学报, 2006, 34(2): 226-229. ZHAO Yanbo, LIU Shunhua, GUAN Hongtao. J Chin Ceram Soc (in Chinese), 2006, 34(2): 226-229. [13] ZHAO Naiqin, ZOU Tianchun, SHI Chunsheng, et al. Microwave absorbing properties of activated carbon-fiber felt screens (vertical- arranged carbon fibers)/epoxy resin composites [J]. Mater Sci Eng B: Solid-State Mater Adv Technol, 2006, 127(2-3): 207-211. [14] 阮颖铮. 雷达截面与隐身技术[M]. 北京: 国防工业出版社, 1998. RUAN Yingzheng. Radar Cross Section and Stealth Technology (in Chinese). Beijing: National Defense Industry Press,1998. [15] ZHAO Donglin, SHEN Zengmin, CHI Weidong. Radar absorption property and mechanism of carbon fiber and carbon fiber composites [J]. New Carbon Mater, 2001, 16(6): 66-72. [16] 司琼, 董发勤. 掺石墨和羰基铁涂料的低频电磁屏蔽性能研究[J]. 功能材料, 2006, 37(6): 883-886. SI Qiong, DONG Faqin. Funct Mater (in Chinese), 2006, 37(6): 883- 886. [17] 冯永宝, 丘泰, 李晓云, 等. 羰基铁/三元乙丙橡胶复合材料的吸波性能[J]. 材料科学与工艺, 2008, 16(4): 589-593. FENG Yongbao, QIU Tai, LI Xiaoyun, et al. Mater Sci Technol (in Chinese), 2008, 16(4): 589-593. [18] XING Liying, LIU Junneng, REN Shufang. Study on electromagnetic property of short carbon fibers and its application to radar absorbing materials [J]. Mater Eng, 1998 (1): 19-21.

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