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Improved connectivity of gelcasted and solid-state-sintered SiC foams through synergetic poring mechanism
Wu, Haibo1; Li, Yinsheng2; Liu, Xuejian1; Huang, Zhengren1; Jiang, Dongliang1
2017
Source PublicationJournal of Alloys and Compounds
ISSN09258388
Volume712Pages:633-639
AbstractIn order to improve the connectivity between pores of gelcasted and solid-state-sintered SiC (S-SiC) foams, we utilized the synergetic poring mechanism of direct foaming and sacrificial solid template through introducing organic micro-beads into aqueous foamed SiC-B4C-C suspensions. The addition of micro-beads accelerated the formation of more bubble-derived pores in S-SiC foams, and generated abundant bead-derived pores in the bubble-derived-pore struts and partial-sintering-derived pores between SiC grains as well. This multiple pore microstructures induced excellent connectivity between pores and an ultrahigh porosity of 89.5%. Consequently, an outstanding nitrogen gas permeability of 9.2 × 10−11 m2was acquired under the condition of a superior compressive strength of 2.2 ± 0.4 MPa. © 2017 Elsevier B.V.
DOI10.1016/j.jallcom.2017.04.137
EI Accession Number20171603583390
EI KeywordsSulfur compounds
EI Classification Number804 Chemical Products Generally - 931.2 Physical Properties of Gases, Liquids and Solids - 951 Materials Science
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25608
Collection中国科学院上海硅酸盐研究所
Affiliation1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.Korea Institute of Materials Science, Changwon; Gyeongnam; 51508, Korea, Republic of
Recommended Citation
GB/T 7714
Wu, Haibo,Li, Yinsheng,Liu, Xuejian,et al. Improved connectivity of gelcasted and solid-state-sintered SiC foams through synergetic poring mechanism[J]. Journal of Alloys and Compounds,2017,712:633-639.
APA Wu, Haibo,Li, Yinsheng,Liu, Xuejian,Huang, Zhengren,&Jiang, Dongliang.(2017).Improved connectivity of gelcasted and solid-state-sintered SiC foams through synergetic poring mechanism.Journal of Alloys and Compounds,712,633-639.
MLA Wu, Haibo,et al."Improved connectivity of gelcasted and solid-state-sintered SiC foams through synergetic poring mechanism".Journal of Alloys and Compounds 712(2017):633-639.
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