Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Microwave absorbing properties of double-layer cementitious composites containing Mn–Zn ferrite
AbstractDouble-layer cementitious composites filled with Mn–Zn ferrite as microwave absorbers were designed based on the impedance matching theory and electromagnetic wave propagation laws. The results showed that the addition of silica fume can improve the impedance matching between the cementitious composites and free space. Comparing with the single-layer structure, the reflectivity of the double-layer cementitious plates can decrease by 6–8dB and decrease by 15 dB maximum with 30wt.% ferrite; in addition, the reflectivity of electromagnetic wave is lower than 10dB in the frequency range of 11.4–18GHz. These composites can be potentially used as electromagnetic interference (EMI) materials for buildings.
Microwave absorbing properties of double-layer cementitious composites containing Mn–Zn ferrite
AbstractDouble-layer cementitious composites filled with Mn–Zn ferrite as microwave absorbers were designed based on the impedance matching theory and electromagnetic wave propagation laws. The results showed that the addition of silica fume can improve the impedance matching between the cementitious composites and free space. Comparing with the single-layer structure, the reflectivity of the double-layer cementitious plates can decrease by 6–8dB and decrease by 15 dB maximum with 30wt.% ferrite; in addition, the reflectivity of electromagnetic wave is lower than 10dB in the frequency range of 11.4–18GHz. These composites can be potentially used as electromagnetic interference (EMI) materials for buildings.
Microwave absorbing properties of double-layer cementitious composites containing Mn–Zn ferrite
Zhang, Xiuzhi (Autor:in) / Sun, Wei (Autor:in)
Cement and Concrete Composites ; 32 ; 726-730
15.07.2010
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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