Author/Authors :
Cao، نويسنده , , Jing-Li Fu ، نويسنده , , Wuyou and Yang، نويسنده , , Haibin and Yu، نويسنده , , Qingjiang and Zhang، نويسنده , , Yanyan and Wang، نويسنده , , Shuangming and Zhao، نويسنده , , Hui and Sui، نويسنده , , Yongming and Zhou، نويسنده , , Xiaoming and Zhao، نويسنده , , Wenyan and Leng، نويسنده , , Yan and Zhao، نويسنده , , Hui and Chen، نويسنده , , Hui and Qi، نويسنده , , Xuefeng، نويسنده ,
Abstract :
Large-quantity flower-like tubular ZnO coated with Fe3O4 nanoparticles were synthesized via a simple solution method at low temperature. The phase structures and morphologies of the composite had been characterized by XRD and FESEM. The results showed that Fe3O4 nanoparticles coating on flower-like tubular ZnO can be obtained at 90 °C. The structure of flower-like tubular ZnO was not destroyed in the coating process. The test of electromagnetic wave absorption was carried out by the radar-absorbing materials (RAM) reflectivity far field radar cross-section (RCS) method. Magnetic measurements revealed the presence of magnetite nanoparticles in the composites. Measurements of the electromagnetic parameters of the samples showed that the flower-like tubular ZnO/Fe3O4 nanocomposites were much better than the pure ZnO or Fe3O4 with the efficiency of electromagnetic wave absorption.
Keywords :
ZNO , Fe3O4 , nanocomposites , Electromagnetic wave absorption
