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The reduction of the radar cross-sectional area achieved in stealth technology has been a major challenge since the Second World War, being accomplished by covering the metallic surfaces of aircraft, ships, tanks, etc. with radar-absorbing materials. Nowadays, the development of lightweight microwave-absorbing materials with reduced thickness has a greater impact due to their excellent microwave-absorbing properties. In this study, the microwave-absorbing properties of nanocomposites based on Zn-substituted cobalt ferrite and lead zirconium titanate have been investigated in the X-band (8.2 GHz to 12.4 GHz) region. Zn-substituted cobalt ferrite (CZF) and lead zirconium titanate (PZT) nanoparticles were prepared by the coprecipitation and homogeneous precipitation method, respectively. Nanocomposites were developed by dispersing these nanoparticles with different compositions into an epoxy resin matrix. All the composite materials showed more than 90% microwave absorption in the X-band region. The nanocomposite containing CZF/PZT (3:1) with 2 mm thickness displayed maximum return loss of ―47.87 dB at 12.23 GHz. The microwave absorbers based on epoxy resin polymeric matrix exhibited better absorbing properties when the dielectric contribution matched the magnetic contribution, and the loss mechanisms were mainly due to the dielectric loss.

Titel:	Electronic Materials Based on Co0.5Zn0.5Fe2O4/ Pb(Zr0.52Ti0.48)O3 Nanocomposites
Autor/in / Beteiligte Person:	MANDAL, Avinandan ; CHAPAL KUMAR, DAS
Link:	Volltext (PDF) View record from PASCAL Archive
Zeitschrift:	Journal of electronic materials, Jg. 42 (2013), Heft 1, S. 121-128
Veröffentlichung:	Heidelberg: Springer, 2013
Medientyp:	academicJournal
Umfang:	print, 27 ref
ISSN:	0361-5235 (print)
Schlagwort:	Crystallography Cristallographie cristallogenèse Electronics Electronique Metallurgy, welding Métallurgie, soudage Condensed state physics Physique de l'état condensé Sciences exactes et technologie Exact sciences and technology Physique Physics Domaines interdisciplinaires: science des materiaux; rheologie Cross-disciplinary physics: materials science; rheology Science des matériaux Materials science Nanomatériaux et nanostructures : fabrication et caractèrisation Nanoscale materials and structures: fabrication and characterization Matériaux nanocristallins Nanocrystalline materials Méthodes de nanofabrication Methods of nanofabrication Sciences appliquees Applied sciences Matériaux Materials Absorption hyperfréquence Microwave absorption Absorción hiperfrecuencia Cobalt Fer Oxyde Mixte Cobalt Iron Oxides Mixed Mixto Constante diélectrique complexe Complex permittivity Constante dieléctrica compleja Coprécipitation Coprecipitation Epaisseur Thickness Epoxyde résine Epoxy resin Epóxido resina Fer Zinc Oxyde Mixte Iron Zinc Oxides Mixed Hyperfréquence Microwave radiation Matériau composite Composite materials Matériau hyperfréquence Microwave materials Matériau léger Lightweight material Material ligero Nanocomposite Nanocomposites Nanomatériau Nanostructured materials Nanoparticule Nanoparticles PZT Perméabilité Permeability Perte diélectrique Dielectric losses Précipitation Precipitation Synthèse nanomatériau Nanomaterial synthesis Síntesis nanomaterial Titanate de plomb Lead titanates Titanate de zirconium Zirconium titanates 8107B Ferrite de cobalt O Pb Ti Zr Pb(Zr0.52Ti0.48)O3 PbTiO3 Substrat cobalt Zn-substituted cobalt ferrite complex relative permittivity and permeability lead zirconium titanate return loss Time: 8116
Sonstiges:	Nachgewiesen in: PASCAL Archive Sprachen: English Original Material: INIST-CNRS Document Type: Article File Description: text Language: English Author Affiliations: Materials Science Centre, Indian Institute of Technology, Kharagpur 721302, West Bengal, India Rights: Copyright 2014 INIST-CNRS ; CC BY 4.0 ; Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS Notes: Electronics ; Physics and materials science

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Electronic Materials Based on Co0.5Zn0.5Fe2O4/ Pb(Zr0.52Ti0.48)O3 Nanocomposites