| Publons ID | 22403367 |
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| Wos ID | WOS:000497743700008 |
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| Doi | 10.1016/j.jre.2019.01.008 |
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| Title | Selective microwave absorption in Nd<SUP>3+</SUP> substituted barium ferrite composites |
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| First Author | Widanarto, Wahyu; Khaeriyah, Siti; Ghoshal, Sib Krishna; |
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| Last Author | Cahyanto, Wahyu Tri |
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| Authors | Widanarto, W; Khaeriyah, S; Ghoshal, SK; Kurniawan, C; Effendi, M; Cahyanto, WT; |
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| Publish Date | DEC 2019 |
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| Journal Name | JOURNAL OF RARE EARTHS |
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| Citation | 13 |
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| Abstract | Microwave (MW) frequency based wireless communications and electronic devices became prospective due to several ramifications. To meet this need, a series of neodymium ions (Nd3+) substituted barium ferrite composites with composition (20)BaO:(80-x)Fe2O3:(x)Nd2O3 (0 <= x <= 3 mol%) was prepared at 1100 degrees C using solid-state reaction method. We evaluated the effect of various Nd3+ ions contents on the surface morphology, structure, and magnetic properties of the as-synthesized barium ferrite composites. Meanwhile, microwave reflection loss, complex permittivity and permeability were determined using the transmission/reflection line method in the X-band (8-12 GHz). SEM image of the composites shows that the surface morphology consists of rough and porous microstructures. XRD patterns of the un-doped composites reveal the existence of BaFe12O19 (hexagonal) and Fe21.333O32 (tetragonal) crystalline phases. Furthermore, a new hexagonal crystalline phase of Ba6Nd2Fe4O15 with the crystallite sizes between 15 and 67 nm is observed due to Nd3+ ions substitution in the composite. The saturation magnetization of the composite containing 2 mol% of Nd3+ does not exhibit any significant alteration compared to the one devoid of Nd3+. The complex relative permitivity and permeability of the achieved composites enriched in Ba6Nd2Fe4O15 and BaFe2O4 phases disclose significant MW frequency dependence. The composites also display selective MW absorption in the X-band which could be useful for diverse applications. (C) 2019 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved. |
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| Publish Type | Journal |
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| Publish Year | 2019 |
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| Page Begin | 1320 |
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| Page End | 1325 |
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| Issn | 1002-0721 |
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| Eissn | |
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| Url | https://www.webofscience.com/wos/woscc/full-record/WOS:000497743700008 |
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| Author | WAHYU TRI CAHYANTO, S.Si, M.Si, Ph.D |
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| File | 2759.pdf |
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