TY - GEN
T1 - Study on the absorption properties of spinel type ferrite composite coatings in the low frequency
AU - Wang, Wenjie
AU - Jiao, Qingjie
AU - Zang, Chongguang
AU - Zhu, Xiangdong
PY - 2012
Y1 - 2012
N2 - In the present study magneto-polymer composite coatings are fabricated using nano Zn ferrite, Mn ferrite, Ni ferrite, Zn-Mn ferrite and Zn-Ni ferrite by spraying method. The complex permeabilities, Complex permittivities and microwave absorbing properties within the low frequency of these composites were characterized and investigated. The results showed that the magnetism of the mixed spinel ferrites ( Mn ferrite, Zn-Ni ferrite, Zn-Mn ferrite) are strong but the dielectric properties are weaker, while the magnetism of the normal spinel ferrites (Zn ferrite) is the weakest but provide with a big storage capability of electric energy. The absorbing characteristics of the spinel ferrites are better at 300 kHz-1.5GHz, with minimum absorption of 12.5 dB and the maximum absorption at 480MHz, 1050 MHz and 1400 MHz. The microwave absorbing property of the mixed spinel ferrite Zn-Mn ferrite is best having the RL value being-42.5 dB at 1400GHz.
AB - In the present study magneto-polymer composite coatings are fabricated using nano Zn ferrite, Mn ferrite, Ni ferrite, Zn-Mn ferrite and Zn-Ni ferrite by spraying method. The complex permeabilities, Complex permittivities and microwave absorbing properties within the low frequency of these composites were characterized and investigated. The results showed that the magnetism of the mixed spinel ferrites ( Mn ferrite, Zn-Ni ferrite, Zn-Mn ferrite) are strong but the dielectric properties are weaker, while the magnetism of the normal spinel ferrites (Zn ferrite) is the weakest but provide with a big storage capability of electric energy. The absorbing characteristics of the spinel ferrites are better at 300 kHz-1.5GHz, with minimum absorption of 12.5 dB and the maximum absorption at 480MHz, 1050 MHz and 1400 MHz. The microwave absorbing property of the mixed spinel ferrite Zn-Mn ferrite is best having the RL value being-42.5 dB at 1400GHz.
KW - Absorbing properties
KW - Composite materials
KW - Spinel ferrites
UR - http://www.scopus.com/inward/record.url?scp=84255201557&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.415-417.30
DO - 10.4028/www.scientific.net/AMR.415-417.30
M3 - Conference contribution
AN - SCOPUS:84255201557
SN - 9783037853252
T3 - Advanced Materials Research
SP - 30
EP - 34
BT - Advanced Materials
T2 - 2nd International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2011
Y2 - 16 December 2011 through 18 December 2011
ER -