Tailoring the microstructure of high porosity Si3N4 foams by direct foaming with mixed surfactants

doi:10.1111/jace.16599

SIC OpenIR

	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 Publication	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN	0002-7820
Volume	102 Issue:11 Pages:6827
Subtype	Article
Abstract	The 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.
Keyword	compressive strength direct foaming high porosity mixed surfactants silicon nitride
DOI	10.1111/jace.16599
Language	英语
WOS Research Area	Materials Science
Publisher	WILEY
Citation statistics	Cited Times:4[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://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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