期刊
MATERIALS RESEARCH BULLETIN
卷 153, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2022.111872
关键词
Microwave absorption; Carbon fiber; Interface polarization; Impedance matching
资金
- National Natural Science Foundation of China [51772060, 51972078]
- Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, Harbin Institute of Technology, Harbin [150001]
This study prepared a zinc aluminosilicate (ZAS) glass-ceramic precursor using a sol-gel method, utilized short carbon fiber (SCF) as the wave absorber, and combined ZAS and SCF with a silane coupling agent (KH-550) to adjust the impedance matching of the material. Through simple experimental methods and adjustment techniques, the desired absorption performance and corresponding bandwidth can be achieved.
Excellent impedance matching and practical material design are the keys to obtaining excellent microwave absorption performance and application. In this paper, a zinc aluminosilicate (ZAS) glass-ceramic precursor was prepared by a sol-gel method, short carbon fiber (SCF) was used as the main wave absorber, and a silane coupling agent (KH-550) was used to combine the ZAS and SCF. The oxidation concentration of short carbon fibers affects the load of KH-550, which changes the concentration of oxygen-containing groups on the SCF, affecting the thickness of the ZAS coated on the SCF to adjust the impedance matching of the material. In short, through simple experimental methods and adjustment methods, we can obtain the target's absorption performance and corresponding bandwidth. Our work provides a new idea for obtaining impedance matching adjustment of highperformance carbon fiber, and glass-ceramic composite electromagnetic (EM) wave absorbing materials.
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