Please use this identifier to cite or link to this item:
DC FieldValue
dc.titleFlexible Fe3Si/SiC ultrathin hybrid fiber mats with designable microwave absorption performance
dc.contributor.authorHou, Y.
dc.contributor.authorZhang, Y.
dc.contributor.authorDu, X.
dc.contributor.authorYang, Y.
dc.contributor.authorDeng, C.
dc.contributor.authorYang, Z.
dc.contributor.authorZheng, L.
dc.contributor.authorCheng, L.
dc.identifier.citationHou, Y., Zhang, Y., Du, X., Yang, Y., Deng, C., Yang, Z., Zheng, L., Cheng, L. (2018). Flexible Fe3Si/SiC ultrathin hybrid fiber mats with designable microwave absorption performance. RSC Advances 8 (59) : 33574-33582. ScholarBank@NUS Repository.
dc.description.abstractFlexible Fe3Si/SiC ultrathin fiber mats have been fabricated by electrospinning and high temperature treatment (1400 癈) using polycarbosilane (PCS) and ferric acetylacetonate (Fe(acac)3) as precursors. The crystallization degree, flexibility, electrical conductivity, dielectric loss and microwave absorption properties of the hybrid fibers have been dramatically enhanced by the introduction of Fe. Fe3Si nanoparticles with a diameter around 500 nm are embedded in SiC fibers. As the Fe3Si content increases from 0 to 6.5 wt%, the related saturation magnetization (Ms) values increase from 0 to 8.4 emu g?1, and the electrical conductivity rises from 7.9 � 10?8 to 3.1 � 10?3 S cm?1. Moreover, the flexibility of Fe3Si/SiC hybrid fiber mats is greatly improved and remains intact after 500 times 180�-bending testing. Compared with pure SiC fibers, the Fe3Si/SiC hybrid fibers process higher dielectric and magnetic loss, which would be further advanced as more Fe3Si phase is introduced. At the optimal Fe3Si content of 3.8 wt%, the Fe3Si/SiC fibers/silicon resin composite (5 wt%) exhibits minimal reflection loss (RL) of ?22.5 dB at 16.5 GHz and 2.5 mm thickness with a wide effective absorption bandwidth (EAB, RL < ?10 dB) of 8.5 GHz. The microwave absorption performance can be further promoted by multi component stacking fiber mat composites which contain both low and high Fe3Si content layers. Furthermore, the position of the microwave absorption bands can also be simply manipulated by designing the stacking components and structure. � The Royal Society of Chemistry.
dc.publisherRoyal Society of Chemistry
dc.rightsAttribution-NonCommercial 4.0 International
dc.sourceScopus OA2018
dc.contributor.departmentTEMASEK LABORATORIES
dc.description.sourcetitleRSC Advances
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
10_1039_c8ra06941g.pdf1.49 MBAdobe PDF




checked on Nov 25, 2022

Page view(s)

checked on Dec 1, 2022

Google ScholarTM



This item is licensed under a Creative Commons License Creative Commons