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- W1992605772 abstract "Abstract Composites consisting of carbon black (CB) particles, La 0.7 Sr 0.3 MnO 3− δ (LSMO) powder, and epoxy resin were prepared for development of a high performance microwave absorber. This study investigated the influence of adding amounts of LSMO powder (60, 70, and 80 wt%) on complex permittivity, complex permeability, and reflection loss for CB (5 wt%)-epoxy composites. The variation of complex permittivity and complex permeability with frequency of the composites was measured by the cavity perturbation technique in the range of 7–14 GHz. It was found that the real part of the complex permittivity increased with increasing LSMO addition and the imaginary part of the complex permeability decreased with increasing frequency. The microwave absorption results indicated that the composite filled with 5 wt% CB particles and 80 wt% LSMO powder had the best absorption performance. The maximum reflection loss was −23.63 dB at 7.87 GHz and the absorbing bandwidth at −10 dB was 1.75 GHz with a matching thickness of 5 mm." @default.
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- W1992605772 date "2014-04-01" @default.
- W1992605772 modified "2023-09-27" @default.
- W1992605772 title "Enhanced microwave absorption of La0.7Sr0.3MnO3−δ based composites with added carbon black" @default.
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- W1992605772 doi "https://doi.org/10.1016/j.ceramint.2013.08.040" @default.
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