Large-scale synthesis and microwave absorption enhancement of actinomorphic tubular ZnO/CoFe2O4 nanocomposites.
Actinomorphic tubular ZnO/CoFe(2)O(4) nanocomposites were fabricated in large scale via a simple solution method at low temperature. The phase structures, morphologies, particle size, shell thickness, chemical compositions of the composites have been characterized by X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), energy dispersive X-ray spectroscopy (EDS), and transmission electron microscopy (TEM). The as-synthesized nanocomposites were uniformly dispersed into the phenolic resin then the mixture was pasted on metal plate with the area of 200 mm x 200 mm as the microwave absorption test plate. The test of microwave absorption was carried out by the radar-absorbing materials (RAM) reflectivity far field radar cross-section (RCS) method. The range of microwave absorption is from 2 to 18 Hz and the best microwave absorption reach to 28.2 dB at 8.5 Hz. The results indicate that the composites are of excellence with respect to microwave absorption.
Cao
Jing
J
State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, PR China.
Fu
Wuyou
W
Yang
Haibin
H
Yu
Qingjiang
Q
Zhang
Yanyan
Y
Liu
Shikai
S
Sun
Peng
P
Zhou
Xiaoming
X
Leng
Yan
Y
Wang
Shuangming
S
Liu
Bingbing
B
Zou
Guangtian
G