Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 648, Issue -, Pages 1072-1075Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2015.07.073
Keywords
Ferrite; Composites; Electromagnetic properties; Microwave absorption
Categories
Funding
- National Natural Science Foundation of China [51402154]
- Natural Science Foundation of Jiangsu Province [BK20141000]
- Natural Science Foundation of Jiangsu Provincial Universities [14KJB430019]
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The porous hollow BaFe12O19/CoFe2O4 microrods were prepared by an easy and reproducible in situ synthetic method. Cotton cellulose was used as the sacrificial bio-template. The as-prepared hard/soft ferrite composites were homogeneously distributed on the surface of the microrods. It was demonstrated that the porous hollow microrods-like structure and the exchange-coupled interaction between hard and soft ferrites were beneficial to improve the microwave absorption properties. The weight content of the hard/soft ferrite composites was low to 60 wt%, whereas reflection loss could reach to -10 dB in the frequency range of 8.2-16.3 GHz. The fabrication of porous hollow BaFe12O19/CoFe2O4 microrods was an efficient approach to solve the heavy mass problem of the conventional hard/soft ferrite matrix microwave absorption materials. (C) 2015 Elsevier B.V. All rights reserved.
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