Effect of Sintering Temperatures on Structural, Magnetic and Microwave Properties of Barium Ferrites/Epoxy Composites
Nurshahiera Rosdi1, Raba′ah Syahidah Azis2, Ismayadi Ismail3, Muhammad Syazwan Mustaffa4, Nurhidayaty Mokhtar5
1Nurshahiera Rosdi, Institute of Advanced Technology (ITMA), Universiti Putra Malaysia (UPM).
2Ismayadi Ismail, Institute of Advanced Technology (ITMA), Universiti Putra Malaysia (UPM).
3Raba’ah Syahidah Azis, Physics Department, Faculty of Science, Universiti Putra Malaysia (UPM).
4Muhammad Syazwan Mustaffa, Physics Department, Faculty of Science, Universiti Putra Malaysia (UPM).
5Nurhidayaty Mokhtar, Physics Department, Faculty of Science, Universiti Putra Malaysia (UPM).
Manuscript received on 22 October, 2019. | Manuscript published on November 10, 2019. | PP: 5445-5449 | Volume-9 Issue-1, November 2019. | Retrieval Number: A8102119119/2019©BEIESP | DOI: 10.35940/ijitee.A8102.119119
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This research highlights the structural magnetic and microwave properties of nanoparticles of M-type hexagonal barium ferrites (BaFe12O19). The samples were sintered at varied sintering temperatures (800, 900, and 1000 °C). The effect of temperatures on the structural, magnetic and microwave properties was highlighted. Barium ferrites are well-known materials used for radar absorbing materials (RAM). RAM materials with good absorbing performance should have high permeability, small permittivity and high magnetic or dielectric loss at microwave frequency. High microwave absorption can be created effectively in magnetic materials, as well as wideband absorption. The structural, microstructural and microwave properties were analyzed via an X-ray Diffractometer (XRD), a Field Emission Scanning Electron Microscope (FESEM) and a Vector Network Analyzer (VNA), respectively. The XRD results showed a full phase hexagonal structure was formed in the samples sintered at 900 and 1000 ºC. BaFe12O19 composite with a thickness of 3 mm showed a minimum Reflection Loss (RL) at −9.01 dB at a frequency of 9.16 GHz at temperature 1000 ºC.
Keywords: Barium Hexaferrite, High Energy Ball Milling (HEBM), Structural and Microstructural Properties, Electromagnetic and Microwave properties
Scope of the Article: Structural Engineering