中文摘要：

以二茂铁和苯为原料采用CVD技术制备了定向、长为150～160μm铁／碳纳米管雷达波吸收剂，考察了反应温度、保温时间等对其生长状况的影响。采用扫描电镜（SEM）、高分辨透射电子显微镜（HRTEM）、X-射线光电子能谱（XPS）对所得产物进行了形貌、组成、结构表征。结果表明产物有较高的铁填充率，铁元素是以α-Fe晶型包覆在多壁碳纳米管中；吸收剂密度为2．4～2．6g／cm^3，电磁参数在2～18GHz范围内呈现良好的频散效应，低频段尤为显著。

英文摘要：

Radar wave absorbents iron/carbon nanotubes（Fe/CNTs） were synthesized from benzene and ferrocene by CVD reactions. The materials were of aligned morphology with the tube length of 150～160 μm. The effects of reaction temperature and annealing time on the growth morphology were studied, and the surface morphology and microstructure of Fe/CNTs were analyzed by SEM, HRTEM and X-ray electron energy spectrum, Results showed α-Fe was encapsulated in multi-walled CNTs. The density of the absorbent was 2.4～2.6 g/cm^3. The materials showed complex permittivity of frequency dispersion in lower frequency between 2～18 GHz.