Open AccessResearch on electromagnetic wave absorbing properties of nano tetraleg ZnO
Author(s) -
Jin Cao,
Yunhua Huang,
Yue Zhang,
Qingliang Liao,
Deng Zhan-Qiang
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.3641
Subject(s) - materials science , coating , electromagnetic shielding , nano , reflection loss , electromagnetic radiation , composite material , micrometer , absorption (acoustics) , epoxy , reflection (computer programming) , shielding effect , optics , composite number , physics , computer science , programming language
Wave-absorbing coating samples were fabricated with nano tetraleg ZnO as the absorbent and epoxy resin as the binder. The influence of the content of nano tetrapleg ZnO in the absorbing coatings and the thickness of the coatings on wave-absorbing property was investigated. The results showed that excellent absorption was observed in the wave band from 15GHz to 18GHz when the coating thickness was 15mm. When the coating thickness increased to 35mm, the wave-absorbing property of the samples was improved significantly, especially in the wave band from 6GHz to 11GHz. The frequency width reached 136GHz (44—18GHz) when the reflection value of the samples was below -5dB, its wave-absorbing property has obviously improved compared with that of the micrometer sized ZnO. Finally, the wave-absorbing mechanism of nano tetraleg ZnO was discussed. Such coatings are of great values in applications involving electromagnetic wave shielding.