Double layer microwave absorption characteristics of barium hexaferrite/silica composite for x-band frequencies

Erfan Handoko, Iwan Sugihartono, Mangasi Alion Marpaung, Maulana Randa, Mudrik Alaydrus, Nofrijon Sofyan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

14 Citations (Scopus)

Abstract

Microwave absorption characteristics of double layer of barium hexaferrite attached on the silica to from a composite on the basis of wave propagation theory have been investigated. Barium hexaferrite, BaFe12 O19, was synthesized through ceramic method from stoichiometric mixtures of BaCO3 and Fe2 O3 as precursors. The mixture was pelletized under the pressure of 10 MPa and sintered at 1100 °C for 5 hours. Silica in the forms of powder was purified by using HCl. The crystal structure of the samples was characterized using X-ray diffraction (XRD), microstructure was examined using scanning electron microscope (SEM), hysteresis curves recorded by PERMAGRAPH techniques, whereas the microwave absorbing properties for X-band was recorded using a vector network analyzer (VNA). Relative complex permeability and permittivity, and reflection loss values were calculated at given thickness according to transmittance line theory within the range 8.2–12.4 GHz. Based on this study, the layer dimension and frequency that results in low reflection loss can be estimated from the material properties of the barium hexaferrite/silica composite material.

Original languageEnglish
Title of host publicationAdvanced Materials Research - QiR 15
EditorsArdiyansyah Yatim
PublisherTrans Tech Publications Ltd
Pages109-115
Number of pages7
ISBN (Print)9783035712667
DOIs
Publication statusPublished - 2018
Event15th International Conference on Quality in Research, QiR 2017 - Nusa Dua, Bali, Indonesia
Duration: 24 Jul 201727 Jul 2017

Publication series

NameMaterials Science Forum
Volume929 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference15th International Conference on Quality in Research, QiR 2017
Country/TerritoryIndonesia
CityNusa Dua, Bali
Period24/07/1727/07/17

Keywords

  • Barium hexaferrite
  • Microwave absorber
  • Radar-absorbing material
  • Reflection loss
  • Silica

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