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Tailoring the microstructure of high porosity Si3N4 foams by direct foaming with mixed surfactants
Du, Zhongpei; Yao, Dongxu; Xia, Yongfeng; Zuo, Kaihui; Yin, Jinwei; Liang, Hanging; Zeng, Yu-Ping
2019-11-01
Source PublicationJOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN0002-7820
Volume102Issue:11Pages:6827
SubtypeArticle
AbstractThe mixed surfactants were successfully applied to fabricate the highly porous Si3N4 ceramic foams by the direct foaming method. The oppositely charged surfactants mixed in slurries could combined into catanionic surfactant by the electrostatic attraction and facilitate the formation of ultra-stable foams. The microstructure of the Si3N4 ceramic foams, including pore structure, mean pore size, pore size distribution and porosity were tailored by varying the mixing ratio of surfactant, mixed surfactants concentration and solid content of the initial slurries. Si3N4 ceramic foams with porosity of 92%-97%, mean pore size of 140-240 mu m and compressive strength of 0.85-5.38 MPa were obtained by adjusting mixed surfactants between 0.1 and 0.4 wt% and solid content between 22 and 30 vol%. The compressive strength of Si3N4 ceramic foams in current work was much higher than most reported results.
Keywordcompressive strength direct foaming high porosity mixed surfactants silicon nitride
DOI10.1111/jace.16599
Language英语
WOS Research AreaMaterials Science
PublisherWILEY
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26747
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Du, Zhongpei,Yao, Dongxu,Xia, Yongfeng,et al. Tailoring the microstructure of high porosity Si3N4 foams by direct foaming with mixed surfactants[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2019,102(11):6827.
APA Du, Zhongpei.,Yao, Dongxu.,Xia, Yongfeng.,Zuo, Kaihui.,Yin, Jinwei.,...&Zeng, Yu-Ping.(2019).Tailoring the microstructure of high porosity Si3N4 foams by direct foaming with mixed surfactants.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,102(11),6827.
MLA Du, Zhongpei,et al."Tailoring the microstructure of high porosity Si3N4 foams by direct foaming with mixed surfactants".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 102.11(2019):6827.
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