TY - JOUR
T1 - Preparation and electromagnetic properties of Zn2+ substituted W-type Ba-Co ferrites
AU - Wang, Xiao Ya
AU - Huang, Ying
AU - Zhao, Yang
AU - Wu, Yan Fei
PY - 2013/4
Y1 - 2013/4
N2 - The Zn2+ substituted W-type Ba-Co ferrites powder, BaZnxCo2-xFe16O27(x=0.8, 1.0, 1.2) was prepared by a sol-gel method. The powder was characterized by X-ray diffraction, scanning electron microscope, vibrating sample magnetometer and vector network analyzer. The influence of sintering temperature and Zn2+ content on the crystal structure was studied. The particle appearance, magnetic properties and electromagnetic parameters of the sample with different Zn2+ content were analyzed. The results show that the average grain size was about 25.06-32.04nm, the particle size was about 3-9μm, well-distributed and regular shaped W-type Ba-Co ferrites powder with hexagonal flake structure was obtained by sol-gel method at 1300 °C. The maximum Ms reached to 105.99 A·m2·kg-1 when x=1.2. And the magnetic loss increased with the rising Zn2+ concentration in the range of 4-11GHz, the value was 0.2-0.8, while it decreased with the rising Zn2+ concentration in the range of 11-18GHz, the value was 0-0.5.
AB - The Zn2+ substituted W-type Ba-Co ferrites powder, BaZnxCo2-xFe16O27(x=0.8, 1.0, 1.2) was prepared by a sol-gel method. The powder was characterized by X-ray diffraction, scanning electron microscope, vibrating sample magnetometer and vector network analyzer. The influence of sintering temperature and Zn2+ content on the crystal structure was studied. The particle appearance, magnetic properties and electromagnetic parameters of the sample with different Zn2+ content were analyzed. The results show that the average grain size was about 25.06-32.04nm, the particle size was about 3-9μm, well-distributed and regular shaped W-type Ba-Co ferrites powder with hexagonal flake structure was obtained by sol-gel method at 1300 °C. The maximum Ms reached to 105.99 A·m2·kg-1 when x=1.2. And the magnetic loss increased with the rising Zn2+ concentration in the range of 4-11GHz, the value was 0.2-0.8, while it decreased with the rising Zn2+ concentration in the range of 11-18GHz, the value was 0-0.5.
KW - Absorbing properties
KW - Magnetic loss
KW - Sol-gel method
KW - W-type Ba-Co ferrite
KW - Zn substitution
UR - https://www.scopus.com/pages/publications/84877033360
U2 - 10.3969/j.issn.1005-5053.2013.2.010
DO - 10.3969/j.issn.1005-5053.2013.2.010
M3 - 文章
AN - SCOPUS:84877033360
SN - 1005-5053
VL - 33
SP - 51
EP - 57
JO - Hangkong Cailiao Xuebao/Journal of Aeronautical Materials
JF - Hangkong Cailiao Xuebao/Journal of Aeronautical Materials
IS - 2
ER -