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Preparation of ZrC/SiC porous self-supporting monoliths via sol-gel process using polyethylene glycol as phase separation inducer

文献类型：期刊论文

作者Li, Fei; Wang, Xin-Gang; Huang, Xiao1; Liu, Ji-Xuan; Bao, Weichao1; Zhang, Guo-Jun; Wang, Hongzhi2
刊名JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
出版日期2018
卷号38期号:14页码:4806
关键词Transition metal carbide Porous monolith Sol-gel Induced phase separation Ambient pressure drying
ISSN号0955-2219
DOI10.1016/j.jeurceramsoc.2018.06.033
英文摘要We present a straightforward method via sol-gel process using polyethylene glycol (PEG) as phase separation inducer to prepare zirconium carbide/silicon carbide (ZrC/SiC) porous monoliths. Organic/inorganic hybrid gels are prepared using zirconium oxychloride, furfuryl alcohol, and tetraethyl orthosilicate as major starting materials. In the presence of PEG, crack-free hybrid monoliths are obtained by drying the wet gels under ambient pressure, whereas in the absence of PEG, the wet gels break into pieces as expected. PEG plays a key role in maintaining the macroscopic shape of the monoliths. After ceramization at 1300-1500 degrees C, ZrC/SiC porous monoliths are obtained. SEM and mercury intrusion porosimetry data show that PEG also has strong influence on the microstructures of the monoliths. The compressive strengths of the ceramic monoliths are in the range of 0.3 to 0.7 MPa. And their compressive behavior starts to differ due to the changes in their microstructures, especially the pore structure.
学科主题Materials Science, Ceramics
WOS记录号WOS:000440960600028
出版者ELSEVIER SCI LTD
资助机构Financial support from the National Natural Science Foundation of China (No. 51602324, 51532009, 11575275, and 51502322) and the Innovation Project of Instrument and Equipment Function Development of the Chinese Academy of Sciences (No. 2060499) are gratefully acknowledged. ; Financial support from the National Natural Science Foundation of China (No. 51602324, 51532009, 11575275, and 51502322) and the Innovation Project of Instrument and Equipment Function Development of the Chinese Academy of Sciences (No. 2060499) are gratefully acknowledged.
源URL[http://ir.sic.ac.cn/handle/331005/24636]  
专题中国科学院上海硅酸盐研究所
作者单位1.Donghua Univ, Inst Funct Mat, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
3.Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
推荐引用方式
GB/T 7714		 Li, Fei,Wang, Xin-Gang,Huang, Xiao,et al. Preparation of ZrC/SiC porous self-supporting monoliths via sol-gel process using polyethylene glycol as phase separation inducer[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2018,38(14):4806, 4813.
APA Li, Fei.,Wang, Xin-Gang.,Huang, Xiao.,Liu, Ji-Xuan.,Bao, Weichao.,...&Wang, Hongzhi.(2018).Preparation of ZrC/SiC porous self-supporting monoliths via sol-gel process using polyethylene glycol as phase separation inducer.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,38(14),4806.
MLA Li, Fei,et al."Preparation of ZrC/SiC porous self-supporting monoliths via sol-gel process using polyethylene glycol as phase separation inducer".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 38.14(2018):4806.

入库方式： OAI收割

来源：上海硅酸盐研究所

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