Flexible and self-assembly anisotropic FeCo nanochain-polymer composite films for highly stretchable magnetic device

doi:10.1016/j.compscitech.2018.05.025

IMR OpenIR

	Flexible and self-assembly anisotropic FeCo nanochain-polymer composite films for highly stretchable magnetic device
	Yuan, Jie 1,2; Liu, Zhi-Quan 1,2
通讯作者	Liu, Zhi-Quan(zqliu@imr.ac.cn)
	2018-08-18
发表期刊	COMPOSITES SCIENCE AND TECHNOLOGY
ISSN	0266-3538
卷号	164 页码:8-16
摘要	Magnetic 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.
关键词	Flexible composites Nano particles Anisotropy Magnetic properties Mechanical properties
资助者	National Key R&D Program of China ; Chinese Academy of Sciences
DOI	10.1016/j.compscitech.2018.05.025
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2017YFB0305501] ; Chinese Academy of Sciences
WOS研究方向	Materials Science
WOS类目	Materials Science, Composites
WOS记录号	WOS:000440121700002
出版者	ELSEVIER SCI LTD
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/128948
专题	中国科学院金属研究所
通讯作者	Liu, Zhi-Quan
作者单位	1.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
推荐引用方式 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.