Origami and 4D printing of elastomer-derived ceramic structures

doi:10.1126/sciadv.aat0641

	Origami and 4D printing of elastomer-derived ceramic structures
	Liu, Guo 1; Zhao, Yan 1; Wu, Ge 1; Lu, Jian 1,2
刊名	Science Advances
	2018
卷号	4 期号:8
DOI	10.1126/sciadv.aat0641
英文摘要	Four-dimensional (4D) printing involves conventional 3D printing followed by a shape-morphing step. It enables more complex shapes to be created than is possible with conventional 3D printing. However, 3D-printed ceramic precursors are usually difficult to be deformed, hindering the development of 4D printing for ceramics. To overcome this limitation, we developed elastomeric poly(dimethylsiloxane) matrix nanocomposites (NCs) that can be printed, deformed, and then transformed into silicon oxycarbide matrix NCs, making the growth of complex ceramic origami and 4D-printed ceramic structures possible. In addition, the printed ceramic precursors are soft and can be stretched beyond three times their initial length. Hierarchical elastomer-derived ceramics (EDCs) could be achieved with programmable architectures spanning three orders of magnitude, from 200 m to 10 cm. A compressive strength of 547 MPa is achieved on the microlattice at 1.6 g cm−3. This work starts a new chapter of printing high-resolution complex and mechanically robust ceramics, and this origami and 4D printing of ceramics is cost-efficient in terms of time due to geometrical flexibility of precursors. With the versatile shape-morphing capability of elastomers, this work on origami and 4D printing of EDCs could lead to structural applications of autonomous morphing structures, aerospace propulsion components, space exploration, electronic devices, and high-temperature microelectromechanical systems. Copyright © 2018 The Authors.
出版者	American Association for the Advancement of Science
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25273]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong, China; 2.Centre for Advanced Structural Materials, City University of Hong Kong, Shenzhen Research Institute, Shenzhen Hi-Tech Industrial Park, 8 Yuexing 1st Road, Nanshan District, Shenzhen, China
推荐引用方式 GB/T 7714	Liu, Guo,Zhao, Yan,Wu, Ge,et al. Origami and 4D printing of elastomer-derived ceramic structures[J]. Science Advances,2018,4(8).
APA	Liu, Guo,Zhao, Yan,Wu, Ge,&Lu, Jian.(2018).Origami and 4D printing of elastomer-derived ceramic structures.Science Advances,4(8).
MLA	Liu, Guo,et al."Origami and 4D printing of elastomer-derived ceramic structures".Science Advances 4.8(2018).