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Flexible and self-assembly anisotropic FeCo nanochain-polymer composite films for highly stretchable magnetic device
Yuan, Jie1,2; Liu, Zhi-Quan1,2
Corresponding AuthorLiu, Zhi-Quan(zqliu@imr.ac.cn)
2018-08-18
Source PublicationCOMPOSITES SCIENCE AND TECHNOLOGY
ISSN0266-3538
Volume164Pages:8-16
AbstractMagnetic field induced self-assembly is used to successfully fabricate flexible and anisotropic FeCo nanochain-PDMS composite films. The embedded nanochains are controllable in average length (< 200 mu m) and width (< 2 mu m) through optimizing the filler mass fraction and the magnetic field intensity, and an ultra-high aspect ratio of 150 can be achieved. In-situ observations on the growth of a 600 pm long nanochain verify the connection and coarsening mechanism. The composite films are anisotropic along the directions parallel or perpendicular to the alined nanochains or nanobundles. The highest tensile strength in the tension direction perpendicular to the nanochains is 3.20 MPa for the composite film fabricated at 60 mT with 1.0 wt% of filler, which is 85.0% higher than that of the pure PDMS films (1.73 MPa). Different tensile models are proposed to discuss the fracture mechanism, concerning the effectiveness of stress transfer between soft matrix and filler. VSM measurements indicate that the nanochains are easier to be magnetized in parallel geometry due to the larger dipolar coupling. The saturated magnetization (Ms) of nanocomposite films with 1.0 wt% FeCo nanocube filler is 0.45 emu g(-1). Such highly flexible, magnetically responsive anisotropic composite films have potential applications especially for highly stretchable devices.
KeywordFlexible composites Nano particles Anisotropy Magnetic properties Mechanical properties
Funding OrganizationNational Key R&D Program of China ; Chinese Academy of Sciences
DOI10.1016/j.compscitech.2018.05.025
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFB0305501] ; Chinese Academy of Sciences
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Composites
WOS IDWOS:000440121700002
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/128944
Collection中国科学院金属研究所
Corresponding AuthorLiu, Zhi-Quan
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Yuan, Jie,Liu, Zhi-Quan. Flexible and self-assembly anisotropic FeCo nanochain-polymer composite films for highly stretchable magnetic device[J]. COMPOSITES SCIENCE AND TECHNOLOGY,2018,164:8-16.
APA Yuan, Jie,&Liu, Zhi-Quan.(2018).Flexible and self-assembly anisotropic FeCo nanochain-polymer composite films for highly stretchable magnetic device.COMPOSITES SCIENCE AND TECHNOLOGY,164,8-16.
MLA Yuan, Jie,et al."Flexible and self-assembly anisotropic FeCo nanochain-polymer composite films for highly stretchable magnetic device".COMPOSITES SCIENCE AND TECHNOLOGY 164(2018):8-16.
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