Ice-templated porous tungsten and tungsten carbide inspired by natural wood

doi:10.1016/j.jmst.2019.10.021

IMR OpenIR

	Ice-templated porous tungsten and tungsten carbide inspired by natural wood
	Zhang, Yuan 1,2; Tan, Guoqi 1,3; Jiao, Da 1; Zhang, Jian 1; Wang, Shaogang 1; Liu, Feng 2; Liu, Zengqian 1,3; Zhuo, Longchao 4; Zhang, Zhefeng 1,3; Deville, Sylvain 5; Ritchie, Robert O.6
通讯作者	Liu, Zengqian(zengqianliu@imr.ac.cn) ; Zhuo, Longchao(zhuolongchao@xaut.edu.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn)
	2020-05-15
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	45 页码:187-197
摘要	The structures of tungsten and tungsten carbide scaffolds play a key role in determining the properties of their infiltrated composites for multifunctional applications. However, it is challenging to construct and control the architectures by means of self-assembly in W/WC systems because of their large densities. Here we present the development of unidirectionally porous architectures, with high porosities exceeding 65 vol.%, for W and WC scaffolds which in many respects reproduce the design motif of natural wood using a direct ice-templating technique. This was achieved by adjusting the viscosities of suspensions to retard sedimentation during freezing. The processing, structural characteristics and mechanical properties of the resulting scaffolds were investigated with the correlations between them explored. Quantitative relationships were established to describe their strengths based on the mechanics of cellular solids by taking into account both inter- and intra-lamellar pores. The fracture mechanisms were also identified, especially in light of the porosity. This study extends the effectiveness of the ice-templating technique for systems with large densities or particle sizes. It further provides preforms for developing new nature-inspired multifunctional materials, as represented by W/WC-Cu composites. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Ice-templating Tungsten Scaffolds Fracture mechanisms Bioinspired materials
资助者	National Natural Science Foundation of China ; Opening Project of Jiangsu Province Key Laboratory of High-end Structural Materials ; U.S. Air Force Office of Scientific Research, under MURI grant
DOI	10.1016/j.jmst.2019.10.021
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51871216] ; National Natural Science Foundation of China[51501190] ; Opening Project of Jiangsu Province Key Laboratory of High-end Structural Materials[hsm1801] ; U.S. Air Force Office of Scientific Research, under MURI grant[AFSOR-FA9550-15-1-0009]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000526956200020
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：37[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/321006/138478
专题	中国科学院金属研究所
通讯作者	Liu, Zengqian; Zhuo, Longchao; Zhang, Zhefeng
作者单位	1.Chinese Acad Sci, Inst Met Res, Lab Fatigue & Fracture Mat, Shenyang 110016, Peoples R China 2.Liaoning Shihua Univ, Sch Mech Engn, Fushun 113001, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 4.Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Peoples R China 5.CNRS, St Gobain Res Provence, Lab Synthese & Fonctionnalisat Ceram, UMR3080,St Gobain CREE, F-84306 Cavaillon, France 6.Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA
推荐引用方式 GB/T 7714	Zhang, Yuan,Tan, Guoqi,Jiao, Da,et al. Ice-templated porous tungsten and tungsten carbide inspired by natural wood[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,45:187-197.
APA	Zhang, Yuan.,Tan, Guoqi.,Jiao, Da.,Zhang, Jian.,Wang, Shaogang.,...&Ritchie, Robert O..(2020).Ice-templated porous tungsten and tungsten carbide inspired by natural wood.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,45,187-197.
MLA	Zhang, Yuan,et al."Ice-templated porous tungsten and tungsten carbide inspired by natural wood".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 45(2020):187-197.