1. Electromagnetic matching and microwave absorption abilities of Ti3SiC2 encapsulated with Ni0.5Zn0.5Fe2O4 shell.
- Author
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He, Jun, Deng, Lianwen, Luo, Heng, He, Longhui, Shan, Dongyong, Yan, Shuoqing, and Huang, Shengxiang
- Subjects
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ELECTROMAGNETISM , *TITANIUM compounds , *MICROENCAPSULATION , *ABSORPTION , *PERMITTIVITY , *SOL-gel processes - Abstract
Highlights • Ti 3 SiC 2 encapsulated by magnetic Ni 0.5 Zn 0.5 Fe 2 O 4 shell were successfully prepared. • Moderated complex permittivity for the Ni 0.5 Zn 0.5 Fe 2 O 4 /Ti 3 SiC 2 was achieved. • Desirable higher complex permeability for the Ni 0.5 Zn 0.5 Fe 2 O 4 /Ti 3 SiC 2 was realized. • The Ni 0.5 Zn 0.5 Fe 2 O 4 /Ti 3 SiC 2 coating with wide bandwidth (RL <-10 dB) of 5.3 GHz. Abstract Ti 3 SiC 2 particles encapsulated by Ni 0.5 Zn 0.5 Fe 2 O 4 shell were in-situ synthesized via a facile sol-gel method. Effects of Ni 0.5 Zn 0.5 Fe 2 O 4 shell on electromagnetic properties of Ti 3 SiC 2 were investigated in 2–18 GHz. Moderated complex permittivity and desirable higher complex permeability presented for the Ni 0.5 Zn 0.5 Fe 2 O 4 /Ti 3 SiC 2 composite, resulting in strong microwave attenuation ability and good impedance matching property. The measured effective absorbing bandwidth (RL < −10 dB) of 5.3 GHz and corresponding maximum RL of −38.6 dB were obtained for the Ni 0.5 Zn 0.5 Fe 2 O 4 /Ti 3 SiC 2 absorbing coating of 1.2 mm thickness. These results indicate that the Ni 0.5 Zn 0.5 Fe 2 O 4 /Ti 3 SiC 2 composite may become a new type of microwave absorbent. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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