| Fe3Si-core/amorphous-C-shell nanocapsules with enhanced microwave absorption | |
| Hua, An1,2; Pan, Desheng1,2; Li, Yong1,2; Luan, Jian1; Wang, Yu3; He, Jun3; Geng, Dianyu1; Liu, Wei1; Ma, Song1; Zhang, Zhidong1 | |
| Corresponding Author | Ma, Song(songma@imr.ac.cn) |
| 2019-02-01 | |
| Source Publication | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
 |
| ISSN | 0304-8853 |
| Volume | 471Pages:561-567 |
| Abstract | Nanoscale heterostructures, like core-shell structures, show attractive microwave-absorption characteristics because of the synergetic effects of their dielectric shells and soft-magnetic cores. A new type of nanocapsules with amorphous C shell encapsulating Heusler soft-magnetic Fe3Si alloy has been designed and synthesized in which Si atoms were doped in the C shell to effectively produce a large amount of Si-C bonds to induce the formation of an amorphous C shell. This further significantly improves the dielectric properties of C shells by enhanced dielectric polarization. These tailored Fe3Si/C nanocapsules, exhibit enhanced microwave-absorption properties because of the desirable impedance match between the amorphous C shell and the soft-magnetic Fe3Si. The optimal Fe3Si/C nanocapsules exhibit a highest absorption intensity of - 68.3 dB at 13 GHz and an absorption bandwidth of 4.6 GHz (for RL lower than -10 dB) for absorber thicknesses of 2.1 mm and 1.4 mm, respectively. This new type of nanocapsules is of potential interest for application as novel microwave-absorption material. |
| Keyword | Fe3Si nanocapsules Amorphous C shell Arc-discharge Microwave absorption |
| Funding Organization | Natural Science Foundation of China (NSFC) ; National Key R&D Program of China |
| DOI | 10.1016/j.jmmm.2018.09.095 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Natural Science Foundation of China (NSFC)[51571195] ; Natural Science Foundation of China (NSFC)[51871219] ; Natural Science Foundation of China (NSFC)[51271178] ; Natural Science Foundation of China (NSFC)[51331006] ; Natural Science Foundation of China (NSFC)[51590883] ; National Key R&D Program of China[2017YFA0206301] |
| WOS Research Area | Materials Science ; Physics |
| WOS Subject | Materials Science, Multidisciplinary ; Physics, Condensed Matter |
| WOS ID | WOS:000450089600082 |
| Publisher | ELSEVIER SCIENCE BV |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/130471 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Ma, Song |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Cent Iron & Steel Res Inst, Div Funct Mat Res, Beijing 100081, Peoples R China |
| Recommended Citation GB/T 7714 | Hua, An,Pan, Desheng,Li, Yong,et al. Fe3Si-core/amorphous-C-shell nanocapsules with enhanced microwave absorption[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2019,471:561-567. |
| APA | Hua, An.,Pan, Desheng.,Li, Yong.,Luan, Jian.,Wang, Yu.,...&Zhang, Zhidong.(2019).Fe3Si-core/amorphous-C-shell nanocapsules with enhanced microwave absorption.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,471,561-567. |
| MLA | Hua, An,et al."Fe3Si-core/amorphous-C-shell nanocapsules with enhanced microwave absorption".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 471(2019):561-567. |
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