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Preparation and microwave absorption properties of Ni–Fe3O4 hollow spheres
- Source :
-
Materials Science & Engineering: B . Aug2009, Vol. 164 Issue 2, p112-115. 4p. - Publication Year :
- 2009
-
Abstract
- Abstract: Nickel–magnetite hollow spheres with the diameter about 150nm were prepared by an autocatalytic reduction method. The effect of Fe3O4 content in hollow spheres on microwave absorption properties has been investigated. With an increase of magnetite content, permittivity of sphere–wax composite decreased, while permeability increased. For composite layers, a minimum reflection loss (RL, −38.4dB) was predicted at 10.8GHz with a thickness of 2.5mm. In addition, the increasing content of magnetite resulted in the peak of RL moves to higher frequency and the minimal reflection loss increases obviously. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09215107
- Volume :
- 164
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Materials Science & Engineering: B
- Publication Type :
- Academic Journal
- Accession number :
- 44177734
- Full Text :
- https://doi.org/10.1016/j.mseb.2009.08.004