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Magnetic metal nano...
Magnetic metal nanoparticles coated polyacrylonitrile textiles as microwave absorber
- Artikel/kapitelEngelska2013
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Elsevier BV,2013
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:kth-109168
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-109168URI
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https://doi.org/10.1016/j.jmmm.2012.09.032DOI
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Språk:engelska
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Sammanfattning på:engelska
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Klassifikation
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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QC 20121221
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Polyacrylonitrile (PAN) textiles with 2 mm thickness are coated with magnetic nanoparticles in coating baths with Ni, Co and their alloys via an electroless metal deposition method. The crystal structure, morphology and magnetic nature of composites are investigated by X-ray Powder diffraction, Scanning Electron Microscopy, and dc magnetization measurement techniques. The frequency dependent microwave absorption measurements have been carried out in the frequency range of 12.4-18 GHz (X and P bands). Diamagnetic and ferromagnetic properties are also investigated. Finally, the microwave absorption of composites is found strongly dependent on the coating time. One absorption peak is observed between 14.3 and 15.8 GHz with an efficient absorption bandwidth of 3.3-4.1 GHz (under -20 dB reflection loss limit). The Reflection loss (RL) can be achieved between -30 and -50 dB. It was found that the RL is decreasing and absorption bandwidth is decreasing with increasing coating time. While absorption peak moves to lower frequencies in Ni coated PAN textile, it goes higher frequencies in Co coated ones. The Ni-Co alloy coated composites have fluctuating curve of absorption frequency with respect to coating time. These results encourage further development of magnetic nanoparticle coated textile absorbers for broadband applications.
Ämnesord och genrebeteckningar
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Microwave absorber
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Conducting polymer
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Nanocomposites
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Textile
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Kavas, H.
(författare)
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Baykal, A.
(författare)
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Toprak, Muhammet S.KTH,Funktionella material, FNM(Swepub:kth)u1u3m5a2
(författare)
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Coruh, Ali
(författare)
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Aktas, B.
(författare)
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KTHFunktionella material, FNM
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Journal of Magnetism and Magnetic Materials: Elsevier BV327, s. 151-1580304-88531873-4766
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