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Continuous ice-templating of macro-porous materials with uniformly ordered architecture
Qiu, Wenxing1,2; Zhang, Jian2; Tan, Guoqi2,3; Gao, Kefeng2; Zhang, Mingyang2,3; Liu, Zengqian2,3; Zhang, Zhefeng2,3
Corresponding AuthorLiu, Zengqian(zengqianliu@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn)
2022-06-14
Source PublicationSCIENCE CHINA-MATERIALS
ISSN2095-8226
Pages10
AbstractIce-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.
Keywordice-templating porous materials architecture strength directional solidification
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Liaoning Revitalization Talents Program
DOI10.1007/s40843-022-2078-8
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000812613800001
PublisherSCIENCE PRESS
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/174432
Collection中国科学院金属研究所
Corresponding AuthorLiu, Zengqian; Zhang, Zhefeng
Affiliation1.Zhengzhou Univ, Henan Inst Adv Technol, Zhengzhou 450001, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
Recommended Citation
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.
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