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Harnessing Ostwald ripening to fabricate hierarchically structured mullite-based cellular architecture via the gelation network-triggered morphology-regulation method
Ren, Bo1; Liu, Jingjing2; Wu, Jia-Min3; Wang, Ting4; Liu, Chuanbao1; Chen, Haiyang1; Li, Bin1; Chen, Junhong1
2022
Source PublicationJOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN0955-2219
Volume42Issue:1Pages:238-244
AbstractGas-in-liquid foam templating is considered as a promising method for commercial-scale production of porous materials. However, Ostwald ripening occurs frequently during the preparation, which could bring about inhomogeneous bubbles with large sizes and deteriorate the performance of resultant products. To tackle this challenging task, we report a gelation network-triggered morphology-regulation strategy during the foaming process. As an exemplar, boehmite sol was incorporated into the andalusite suspension to stabilize the foam framework. After casting, the wet foam was able to maintain its overall shape, since andalusite particles were anchored onto the gas-liquid interface by the gelation network during mechanical frothing. The samples calcined at 1400 degrees C feature homogeneous bubble with hierarchical porous architecture, smaller pore size with a mean value of 5.32 mu m and robust compressive strength of 11.97MPa at a porosity level of 84 %. Our approach substantially broadens the design philosophy of high performance porous ceramics.
KeywordMullite-based cellular architecture Gelation network Hierarchical pore architecture Ostwald ripening Rheological properties
DOI10.1016/j.jeurceramsoc.2021.09.066
Language英语
WOS KeywordPARTICLE-STABILIZED FOAMS ; CERAMICS
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000711318900006
PublisherELSEVIER SCI LTD
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/50672
Collection中国科学院过程工程研究所
Corresponding AuthorLiu, Jingjing; Wu, Jia-Min
Affiliation1.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China
4.Huizhou Univ, Guangdong Prov Key Lab Elect Funct Mat & Devices, Huizhou 516001, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Ren, Bo,Liu, Jingjing,Wu, Jia-Min,et al. Harnessing Ostwald ripening to fabricate hierarchically structured mullite-based cellular architecture via the gelation network-triggered morphology-regulation method[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2022,42(1):238-244.
APA Ren, Bo.,Liu, Jingjing.,Wu, Jia-Min.,Wang, Ting.,Liu, Chuanbao.,...&Chen, Junhong.(2022).Harnessing Ostwald ripening to fabricate hierarchically structured mullite-based cellular architecture via the gelation network-triggered morphology-regulation method.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,42(1),238-244.
MLA Ren, Bo,et al."Harnessing Ostwald ripening to fabricate hierarchically structured mullite-based cellular architecture via the gelation network-triggered morphology-regulation method".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 42.1(2022):238-244.
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