TY - JOUR
T1 - Prepared and electromagnetic properties of La doped strontium ferrite/polymer composite
AU - Zhai, Qing Xia
AU - Huang, Ying
PY - 2011/12
Y1 - 2011/12
N2 - To compare the electromagnetic properties of La-doped strontium ferrites nanocomposite in different form, strontium ferrites particle doped with La were synthesized by sol-gel, strontium ferrite/PANI nanocomposites were prepared by in situ polymerization method, La doped nano-strontium ferrite/PSS film and SrLa 0.4Fe 11.6O 19/PSS/PANI mult-layers film were prepared by electrostatic self-assembly technique. The structure, morphology and ferromagnetic property of ferrite particle and nanocomposites were characterized by X-ray powder diffractometer (XRD), Fourier transform infrared spectra (FTIR), Transmission electron microscope (TEM), X-ray photoelectron spectrum(XPS), Magnetic vector network analyzer and vibrating sample magnetometer (VSM). The results indicate that at 9.21GHz, the strength of microwave absorption properties of all is: (SrLa 0.4Fe 11.6 O 19/PSS/PANI) 8 multi-layer film > SrLa 0.4Fe 11.6O 19/PANI particle > SrLa 0.4Fe 11.6O 19 particle, (SrLa 0.4Fe 11.6 O 19/PSS/PANI) 8 multi-layer film has higher saturation magnetization M s and coercivity Hc as compared with the particle SrFe 12O 19 and SrFe 12O 19/PANI composite materials. (SrLa 0.4Fe 11.6 O 19/PSS/PANI) 8 multi-layer film has fine electromagnetic performance.
AB - To compare the electromagnetic properties of La-doped strontium ferrites nanocomposite in different form, strontium ferrites particle doped with La were synthesized by sol-gel, strontium ferrite/PANI nanocomposites were prepared by in situ polymerization method, La doped nano-strontium ferrite/PSS film and SrLa 0.4Fe 11.6O 19/PSS/PANI mult-layers film were prepared by electrostatic self-assembly technique. The structure, morphology and ferromagnetic property of ferrite particle and nanocomposites were characterized by X-ray powder diffractometer (XRD), Fourier transform infrared spectra (FTIR), Transmission electron microscope (TEM), X-ray photoelectron spectrum(XPS), Magnetic vector network analyzer and vibrating sample magnetometer (VSM). The results indicate that at 9.21GHz, the strength of microwave absorption properties of all is: (SrLa 0.4Fe 11.6 O 19/PSS/PANI) 8 multi-layer film > SrLa 0.4Fe 11.6O 19/PANI particle > SrLa 0.4Fe 11.6O 19 particle, (SrLa 0.4Fe 11.6 O 19/PSS/PANI) 8 multi-layer film has higher saturation magnetization M s and coercivity Hc as compared with the particle SrFe 12O 19 and SrFe 12O 19/PANI composite materials. (SrLa 0.4Fe 11.6 O 19/PSS/PANI) 8 multi-layer film has fine electromagnetic performance.
KW - Electromagnetic performance
KW - Electrostatic self-assembly
KW - Polyaniline
KW - Strontium ferrites doped with La
UR - http://www.scopus.com/inward/record.url?scp=84155190028&partnerID=8YFLogxK
U2 - 10.3969/j.issn.1005-5053.2011.6.010
DO - 10.3969/j.issn.1005-5053.2011.6.010
M3 - 文章
AN - SCOPUS:84155190028
SN - 1005-5053
VL - 31
SP - 55
EP - 61
JO - Hangkong Cailiao Xuebao/Journal of Aeronautical Materials
JF - Hangkong Cailiao Xuebao/Journal of Aeronautical Materials
IS - 6
ER -