期刊
SYNTHETIC METALS
卷 210, 期 -, 页码 245-250出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2015.10.006
关键词
Exchange coupling; Polyaniline; Ferrite; Microwave absorbing property
资金
- National Natural Science Foundation of China [51572159]
- Science and Technology Foundation of Shaanxi Province [2013KJXX79, 2013JQ6004]
- Special Foundation of the Ministry of Shaanxi Province [2013JK0937]
The hard/soft BaFe12O19/Y3Fe5O12 composites were successfully prepared by a one step sol-gel method. Then the in-situ polymerization method was used to make them coated with polyaniline. The phase composition, morphology and electromagnetic properties of the composites were characterized by X-ray diffractometer, scanning electron microscope, transmission electron microscopy, Fourier transform infrared spectroscopy, vibrating sample magnetometer and vector network analyzer. The results show that the exchange-coupling effect between BaFe12O19 and Y3Fe5O12 has a great positive effect on the microwave absorbing property and the maximum reflection loss of the composite is -40.8 dB at 9.9 GHz. (C) 2015 Elsevier B.V. All rights reserved.
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