Magnetic sputtering of FeNi/C bilayer film on SiC fibers for effective microwave absorption in the low-frequency region. Issue 4 (15th February 2021)

• Record Type: Journal Article
• Authors: Guo, Tong; Huang, Ben; Li, Changgeng; Lou, Yumin; Tang, Xiu-Zhi; Huang, Xiaozhong; Yue, Jianling
• Is Part Of: Ceramics international. Volume 47:Issue 4(2021)
• Page Start: 5221
• Page End: 5226
• Publication Date: 2021-02-15
• Subjects: Ceramic composites -- Magnetron sputtering -- Multilayer structure -- Microwave absorption -- Low-frequency; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2020.10.101
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: It is a great challenge in promoting a microwave absorber with excellent absorbing properties in the low-frequency region. Herein, SiC fibers (SiCf ) coated by a bilayer of FeNi/C (SiCf /FeNi/C) are fabricated via a two-step magnetron sputtering method. Owing to the improved dielectric loss, magnetic loss, and impedance matching, the reflection loss of SiCf /FeNi/C is remarkably enhanced. Accordingly, the minimum reflection loss of SiCf /FeNi/C reaches −26.18 dB at a low-frequency region of 3.44 GHz. Besides, the mechanic strength of SiCf /FeNi/C maintains at 2.32 GPa as compared to as-received SiCf . Thus, SiCf /FeNi/C is expected to be an ideal structure material to meet low-frequency microwave absorption requests.