Structural, magnetic and microwave absorption characteristics of ba1-xlaxfe12o19 (X = 0; 0.1; 0.2;0.3;0.5;0.7)

Yana Taryana, Wisnu Ari Adi, D. Mahmudin, Yuyu Wahyu, Azwar Manaf

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


In this study, effect of La substitution on the microstructure, magnetic properties and microwave absorption characteristics of Ba1-xLaxFe12O19 (x=0, 0.1, 0.2, 0.3, 0.5, 0.7) is reported. The samples were synthesized through mechanical alloying and solid reaction a temperature 12000C for 2 hours. A single-phase material occurred only at x = 0 and 0.1. Additional second phases were existing in all samples with x ≥ 0.2 which led to multi-phase materials. Additional phases of respectively Fe2O3 and LaFe2O3 were identified in all samples with x ≥ 0.2. Effect of La substitution is to decrease the magneto crystalline anisotropy constant and the saturation magnetization. The latter is due to a decrease in mass fraction of the main magnetic phase. All Ba1-xLaxFe12O19 samples have superior microwave characteristics which able to absorb more than 99 % the incoming electromagnetic wave entering the material. The absorption bandwidth is found relatively wide within the frequency range 8-12 GHz.

Original languageEnglish
Title of host publicationMagnetism and its Application
EditorsBudi Purnama, Darminto, Risdiana
PublisherTrans Tech Publications Ltd
Number of pages7
ISBN (Print)9783035717044
Publication statusPublished - 2020
EventInternational Conference on Magnetism and Its Application, ICMIA 2019 - Surakarta, Indonesia
Duration: 20 Nov 201921 Nov 2019

Publication series

NameKey Engineering Materials
Volume855 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795


ConferenceInternational Conference on Magnetism and Its Application, ICMIA 2019


  • Barium hexaferrite
  • Crystal structure
  • La substitutes
  • Magnetic properties
  • Microwave absorption
  • Particle size distribution
  • Reflection loss

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