Continuous ice-templating of macro-porous materials with uniformly ordered architecture

doi:10.1007/s40843-022-2078-8

CORC > 金属研究所 > 中国科学院金属研究所

	Continuous ice-templating of macro-porous materials with uniformly ordered architecture
	Qiu, Wenxing 2,3; Zhang, Jian 2; Tan, Guoqi 1,2; Gao, Kefeng 2; Zhang, Mingyang 1,2; Liu, Zengqian 1,2; Zhang, Zhefeng 1,2
刊名	SCIENCE CHINA-MATERIALS
	2022-06-14
页码	10
关键词	ice-templating porous materials architecture strength directional solidification
ISSN号	2095-8226
DOI	10.1007/s40843-022-2078-8
通讯作者	Liu, Zengqian(zengqianliu@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn)
英文摘要	Ice-templating technique offers a viable means for constructing ordered macro-porous architectures in materials; nevertheless, it is generally limited by a low efficiency for fabrication, large difficulty for manipulation, along with the small dimension, and poor structural uniformity of ice-templated materials. Here, a new approach was exploited for continuous ice-templating of uniformly ordered macro-porous materials based on the establishment of a large, stable temperature gradient with specific bi-directional designs at the freezing front by descending the front toward the cooling medium to accommodate its upward growth. The freezing rate was markedly increased with the dimension of frozen body notably enlarged as compared with the case for conventional static ice-templating technique. The macro-porous architecture of materials, taking zirconia ceramics as an example, was made much finer and more uniform over the entire sample, and exhibited better ordering of alignment and enhanced inter-connectivity between lamellae. This led to an improvement in the compressive strength and its stability along the height direction for ice-templated materials than those made by the static ice-templating technique at a similar porosity. This study may facilitate the scale up of ice-templating techniques and promote the exploitation and application of new high-performance materials.
资助项目	National Key R&D Program of China[2020YFA0710404] ; National Natural Science Foundation of China[52173269] ; National Natural Science Foundation of China[51871216] ; Youth Innovation Promotion Association CAS ; Liaoning Revitalization Talents Program
WOS研究方向	Materials Science
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000812613800001
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Liaoning Revitalization Talents Program
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/174431]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Zengqian; Zhang, Zhefeng
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.Zhengzhou Univ, Henan Inst Adv Technol, Zhengzhou 450001, Peoples R China
推荐引用方式 GB/T 7714	Qiu, Wenxing,Zhang, Jian,Tan, Guoqi,et al. Continuous ice-templating of macro-porous materials with uniformly ordered architecture[J]. SCIENCE CHINA-MATERIALS,2022:10.
APA	Qiu, Wenxing.,Zhang, Jian.,Tan, Guoqi.,Gao, Kefeng.,Zhang, Mingyang.,...&Zhang, Zhefeng.(2022).Continuous ice-templating of macro-porous materials with uniformly ordered architecture.SCIENCE CHINA-MATERIALS,10.
MLA	Qiu, Wenxing,et al."Continuous ice-templating of macro-porous materials with uniformly ordered architecture".SCIENCE CHINA-MATERIALS (2022):10.