S波段高损耗吸波材料的制备与研究  

Preparation and Research of High-loss Absorbing Materials in S Waveband

作　　者：王锰刚 谢国治[1] 陈文俊[1] 李艳[1] 谌静[1] 

机构地区：[1]南京邮电大学电子科学与工程学院,江苏南京210003

出　　处：《热加工工艺》2017年第16期87-90,共4页Hot Working Technology

基　　金：南京邮电大学引进人才科研启动基金项目(NY213016);国家自然科学基金项目(11304159)

摘　　要：采用高能球磨羰基铁粉添加偶联剂KH-560制备低频雷达波吸波材料,研究了不同球磨时间下获得的样品电磁参量变化规律,根据传输线理论模拟计算出吸波材料的反射损耗。结果表明:随球磨时间的增加,最大吸收峰向低频转移。球磨8 h后得到的吸波材料在膜厚为2.5 mm时,在2.3~3.0 GHz的S波段范围内,反射损耗RL<-15 dB;而在2.7 1GHz处反射损耗RL最低可达-34 dB。Low-frequency radar wave absorbing materials were prepared by high-energy ball milling with carbonyl iron powder adding coupling agent KH-560. The change rule of electromagnetic parameters of the sample milled for different time was studied. The reflection loss of absorbing materials was calculated by transmission line theory simulation. The results show that with the increase of milling time. The maximum absorption peak shifts to lower frequency. The reflection loss of the absorbing material with the film thickness of 2.5 mm milled by 8 h is under-15 dB between 2.3 GHz and 3.0 GHz of S waveband, and arrives to-34 dB in low value at the frequency of 2.71 GHz.

关 键 词：吸波材料 羰基铁粉 电磁参量 反射损耗 S波段 

分 类 号：TG111.92[金属学及工艺—物理冶金]