Widanarto, Wahyu and Effendi, Mukhtar and Ghoshal, Sib Krishna and Kurniawan, Candra and Handoko, Erfan and Alaydrus, Mudrik (2020) Bio-silica incorporated barium ferrite composites: Evaluation of structure, morphology, magnetic and microwave absorption traits. Current Applied Physics, 20 (5). pp. 638-642. ISSN 1567-1739
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Official URL: http://dx.doi.org/10.1016/j.cap.2020.02.019
Abstract
A series of bio-silica incorporated barium-ferrite-composites with the composition of (x)Bio-SiO2:(80-x)γ-Fe2O3:(20)BaO, where x = 0, 1, 2, and 3 wt% were prepared using the modified solid-state reaction method. The influence of different bio-silica (extricated from sintered rice husk) contents on the surface morphologies, structures, and magnetic characteristics of these composites were assessed. The relative complex permittivity and permeability were resolved using the Nicholson-Ross-Weir strategy in the frequency range of 8–13 GHz. Meanwhile, the reflection loss was estimated through the transmission/reflection line theory to assess the MW absorption properties of the composites. Incorporation of the bio-silica in the barium ferrite composites generated a new hexagonal phase (Ba3Fe32O51) and a tetragonal phase (BaFeSi4O10) which led to a decrease in the saturation magnetization and significant shift in the MW frequency absorption peak positions.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Bio-silica, Magnetic properties |
| Subjects: | Q Science > QC Physics |
| Divisions: | Science |
| ID Code: | 87294 |
| Deposited By: | Widya Wahid |
| Deposited On: | 31 Oct 2020 12:29 |
| Last Modified: | 31 Oct 2020 12:29 |
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