Microwave Properties of Composite Ba0.5Sr0.5Fe11.7Mn0.15Ti0.15O19/La0.7Ba0.3MnO3 Material

Viktor Vekky Ronald Repi; Azwar Manaf; Bambang Soegiono

doi:10.4028/www.scientific.net/AMR.896.440

Paper Titles

Magnetic Properties and Reflection Loss Characteristic of Mn-Ti Substituted Barium-Strontium Hexaferrite
p.418

Analysis of Structural and Microstructure of Lanthanum Ferrite by Modifying Iron Sand for Microwave Absorber Material Application
p.423

Characterization of Single Phase of La_0.8Ba_0.2Fe_0.3Mn_0.35Ti_0.35O₃ Nanoparticles as Microwave Absorbers
p.428

Magnetic Properties of Coring Samples from Aceh Basin West Off Sumatera Island
p.434

Microwave Properties of Composite Ba_0.5Sr_0.5Fe_11.7Mn_0.15Ti_0.15O₁₉/La_0.7Ba_0.3MnO₃ Material
p.440

Experiment Using a Magnetically Controlled Ferrofluid Flow in a Flatplate Laminar Flow System
p.444

Anode Buffer for Organic Devices Composed of Gold Nanoparticles Prepared by Ark Plasma Deposition
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A Simple Optimization of Triple-Junction Solar Cell nc-Si:H/a-Si:H/a-SiGe:H Using Computer Modeling and Robust Design
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Detailed Analysis of Shallow and Heavily-Doped Emitters for Al-BSF Bifacial Solar Cells
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 896Microwave Properties of Composite...

Microwave Properties of Composite Ba_0.5Sr_0.5Fe_11.7Mn_0.15Ti_0.15O₁₉/La_0.7Ba_0.3MnO₃ Material

Abstract:

Mn-Ti substituted Barium - Strontium Hexaferrite and Barium – Lanthanum Manganite both well established materials which have been shown poses microwave absorbtion properties. As the properties of composite system are a composition sensitive, composite materials must be properly designed to meet a specific application. In this paper, we report our recent investigation on microwave absorbtion properties of composite Ba₀_.5Sr_0.5Fe_11.7Mn_0.15Ti_0.15O₁₉/La_0.7Ba_0.3MnO₃ system. Composite components respectively Ba₀_.5Sr_0.5Fe_11.7Mn_0.15Ti_0.15O₁₉ and La_0.7Ba_0.3MnO₃ were prepared through mechanical alloying route employing a planetary ball mill for 20 hrs. The two milled powders were sintered at a temperature 1100 °C for 10 hours to ensure the crystallization towards fully crystalline materials. Composites with 2 different compositions were studied by FTIR and VNA from which results were compared with that of each component. Results of the investigation concluded that, the composite of Ba₀_.5Sr_0.5Fe_11.7Mn_0.15Ti_0.15O₁₉/La_0.7Ba_0.3MnO₃ system is a good microwave absorbing material in the frequency range 9 GHz-15 GHz, particularly, sample with coded A03B07 has a wide range frequencies absorption.

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Periodical:

Advanced Materials Research (Volume 896)

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440-443

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.896.440

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Online since:

February 2014

Authors:

Viktor Vekky Ronald Repi*, Azwar Manaf, Bambang Soegiono

Keywords:

Absorber Material, Composite Material, Electric Material, Magnetic Material, Mechanical Alloying, Microwave Properties

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