Enhanced microwave absorption properties in polyaniline and nano-ferrite composite in X-band
IR@NPL: CSIR-National Physical Laboratory, New Delhi
View Archive Info| Field | Value | |
| Title |
Enhanced microwave absorption properties in polyaniline and nano-ferrite composite in X-band
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| Creator |
Gairola, S. P.
Verma, Vivek Kuma, Lalit Dar, M. Abdullah S. , Annapoorni Kotnala, R. K. |
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| Subject |
Materials Science
Physics Polymer Science |
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| Description |
Highly conducting polyaniline (PANI) nanocomposite with Mn0.2Ni0.4Zn0.4Fe2O4 ferrite was prepared by mechanical blending. The present work reports the EMI shielding characteristics of the ferrite-Pani nanocomposite with different thickness. The saturation magnetization (Ms) for pure MnNiZn ferrite (52 emu/g) and composite (41 emu/g) was measured by VSM at room temperature. The crystalline size of MnNiZn ferrite was found in the range of 25–30 nm as analyzed by TEM and XRD. The complex permittivity, permeability and shielding effectiveness of the composite for different thicknesses were measured in the 8–12 GHz (X-band) frequency range. The composite of 2.5 mm thickness has shown high shielding effectiveness (49.2 dB) due to absorption (SEA). The high value of SEA suggests that this composite can be used as a promising absorbing material for X-band frequency range.
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| Publisher |
Elsevier
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| Date |
2010-08-31
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/130/1/104.pdf
Gairola, S. P. and Verma, Vivek and Kuma, Lalit and Dar, M. Abdullah and S. , Annapoorni and Kotnala, R. K. (2010) Enhanced microwave absorption properties in polyaniline and nano-ferrite composite in X-band. Synthetic Metals, 160 (21-22). pp. 2315-2318. ISSN 0379-6779 |
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| Relation |
http://dx.doi.org/10.1016/j.synthmet.2010.08.025
http://npl.csircentral.net/130/ |
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