摘要
采用脉冲和直流电沉积方式,以FeSO4,(NH4)2SO4等混合溶液为电解液,在多孔阳极氧化铝模板(AAO模板)微孔内成功制备出Fe磁性纳米线阵列。用X射线衍射仪、扫描电镜及HP8510B网络分析仪对多孔AAO模板以及Fe磁性纳米线阵列的微观形貌、组织结构及微波吸收性能进行了测试。结果表明,沉积的纳米线为立方结构α-Fe,且纳米线阵列存在(110)择优取向性。Fe纳米线组装后的铝基AAO模板吸波材料具有良好的微波吸收效果,在2GHz^18GHz频段内的最大反射率为-4.8dB,大于-1dB的吸收带宽约为10GHz。
Fe nanowire arrays were prepared by pulse and direct current electrochemical deposition into porous anodic aluminum oxide （AAO） template taking a mixed FeSO4 and （NH）2SO4 solution as electrolyte. The microscopy, crystal structure and microwave absorption properties of AAO template with Fe nanowire arrays and Fe nanowire arrays were investigated by XRD, SEM and HP8510B network analyzer. The results show that the nanowire is an α-Fe with bcc structure and have （110） preferred orientation. The Fe nanowire arrays have good microwave absorption property. The maximum reflectivity of Fe nanowire arrays is -4.8 dB in the range of the frequency from 2 GHz to 18 GHz and the range of the frequency in which the reflectivity is greater than -1 dB is from 8 GHz to 18 GHz.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2006年第3期480-483,共4页
Rare Metal Materials and Engineering
基金
国家高技术研究发展计划("863"计划)资助项目(2003AA305940)
关键词
AAO模板
Fe纳米线
电沉积
微波吸收
AAO template
Fe nanowire arrays
electro-deposition
microwave absorption
