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

doi:10.1016/j.compscitech.2018.05.025

CORC > 金属研究所 > 中国科学院金属研究所

	Flexible and self-assembly anisotropic FeCo nanochain-polymer composite films for highly stretchable magnetic device
	Yuan, Jie 1,2; Liu, Zhi-Quan 1,2
刊名	COMPOSITES SCIENCE AND TECHNOLOGY
	2018-08-18
卷号	164 页码:8-16
关键词	Flexible composites Nano particles Anisotropy Magnetic properties Mechanical properties
ISSN号	0266-3538
DOI	10.1016/j.compscitech.2018.05.025
通讯作者	Liu, Zhi-Quan(zqliu@imr.ac.cn)
英文摘要	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.
资助项目	National Key R&D Program of China[2017YFB0305501] ; Chinese Academy of Sciences
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000440121700002
资助机构	National Key R&D Program of China ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/128943]
专题	金属研究所_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.