An investigation of microstructural, magnetic and microwave absorption properties of multi-walled carbon nanotubes/Ni0.5Zn0.5Fe2O4
An investigation of microstructural, magnetic and microwave absorption properties of multi-walled carbon nanotubes/Ni0.5Zn0.5Fe2O4
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DOI：
10.1038/s41598-019-52233-2
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发表时间：
2019-10-29
影响因子：
4.6
通讯作者：
Ibrahim, Idza Riati
中科院分区：
文献类型：
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作者：
Mustaffa, Muhammad Syazwan;Azis, Raba'ah Syahidah;Ibrahim, Idza Riati
本文研究了通过多壁碳纳米管（MWCNT）生长增强镍锌铁氧体（Ni0.5Zn0.5Fe2O4）的微波吸收性能。采用机械合金化后在1200℃下烧结的方法初步合成了Ni0.5Zn0.5Fe2O4，并对Ni0.5Zn0.5Fe2O4的显微组织、电磁和微波特性进行了研究。然后将烧结后的粉末用作催化剂生长化学气相沉积（CVD）法衍生的MWCNT。将样品与环氧树脂和硬化剂混合制备复合材料。多壁碳纳米管/Ni0.5Zn0.5Fe2O4复合材料在8.46 GHz和1.24 GHz频率和带宽下的最大反射损耗（RL）为-19.34dB，吸收体厚度为3 mm，损耗小于-10 dB。这一结果表明，多壁碳纳米管/Ni0.5Zn0.5Fe2O4可以作为x波段的微波吸收材料。
The enhancement of microwave absorbing properties in nickel zinc ferrite (Ni0.5Zn0.5Fe2O4) via multiwall carbon nanotubes (MWCNT) growth is studied in this research work. Ni0.5Zn0.5Fe2O4 was initially synthesized by mechanical alloying followed by sintering at 1200 degrees C and the microstructural, electromagnetic and microwave characteristics have been scrutinized thoroughly. The sintered powder was then used as a catalyst to grow MWCNT derived from chemical vapor deposition (CVD) method. The sample was mixed with epoxy resin and a hardener for preparation of composites. The composite of multi-walled carbon nanotubes/Ni0.5Zn0.5Fe2O4 shown a maximum reflection loss (RL) of -19.34dB at the frequency and bandwidth of 8.46 GHz and 1.24 GHz for an absorber thickness of 3 mm for losses less than -10 dB. This acquired result indicates that multi-walled carbon nanotubes/Ni0.5Zn0.5Fe2O4 could be used as a microwave absorber application in X-band.