Investigation of EM Waves Absorbtion Behavior at X Band in Mn-Zr Doped Ba-Ferrite

• Main Authors: A. Kianvash, S. Dadsetan
• Format: Article
• Language: fas
• Published: Isfahan University of Technology 2013-06-01
• Series: Journal of Advanced Materials in Engineering
• Subjects: m-type ba-ferrite; micro-wave; electromagnetic wave absorbtion; x band
• Online Access: http://jame.iut.ac.ir/article-1-547-en.html

In this research, M-type Mn-Zr doped Ba-ferrites powders with a general chemical composition of BaFe10.6(ZrxMn1-x)O19 ( x= 0, 0.2, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1) were synthesized and prepared by a solid state method, and were then mixed with anAraldite + hardner and processed into polymer matrix composite specimens. Phase analyses of synthesized samples wereperformed by an XRD technique and magnetic properties of the composite specimens were measured using a hysteresis graphsystem. EM absorbtion characteristics of the composite samples in the (8-12 GHz) frequency ranges were determined using aVNA system.Among the compositions investigated in the present work, the highest absorbtion of -11.25 dB accured in BaFe10.6Zr0.28Mn1.12O19 (x= 0.2) at a frequency of 8.4 GHz. Based on EM absorbtion behaviors and magnetic properties, BaFe10.6Zr0.28Mn1.12O19 is classified as a potential EM absorber material.