Open AccessStudy on Electromagnetic Wave Absorption performance of Dendritic-like Co
Author(s) -
Feifei Yang,
Xingsong Hou,
Lirui Wang,
Youjiang Li,
Xuecong Zhang,
Minggao Yu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/729/1/012038
Subject(s) - diffractometer , microwave , materials science , scanning electron microscope , absorption (acoustics) , attenuation , scattering , penetration depth , absorption band , electromagnetic radiation , penetration (warfare) , reflection loss , composite number , optics , composite material , physics , quantum mechanics , operations research , engineering
Dendritic-like Co particles consisting of leaf-shaped nano-units were successfully synthesized by chemical reduction method. The absorbing particles have abundant multi-stage branches. Since the crystal structure, size and special morphology have an important influence on the microwave absorption performance, the X-ray diffractometer, scanning electron microscope, vibration sample magnetic measurement and vector network analysis are used to characterize the dendritic Co. Absorbing mechanism was analyzed systematically. The nano-sized, multi-stage branches, porous structures and rough surfaces of the prepared particles all contribute to the penetration, scattering and attenuation of EM waves. Hence the composite, in the test band, especially in the S-band (2-4 GHz), presents excellent microwave absorption properties.