The dispersion behavior of Si-C-N nanopowders in organic liquids

CORC > 金属研究所 > 中国科学院金属研究所

	The dispersion behavior of Si-C-N nanopowders in organic liquids
	Y. Z. Chen ; Y. Liang ; F. Zheng ; R. C. Zhou ; Z. C. Feng
刊名	Ceramics International
	2001
卷号	27 期号:1 页码:73-79
关键词	suspensions surfaces Si-C-N ceramic materials silicon stability powders forces
ISSN号	0272-8842
中文摘要	The dispersion behavior of laser synthesized Si-C-N nanopowders in 15 pure organic liquids has been studied through particle size analysis and sedimentation test. The Van der Waals potential energy of interaction between the particles and organic liquid molecules, i.e. V-A, is estimated. The results are correlated with the surface composition of powders and the chemical and physical characteristics of the organic liquids. Poor dispersions are found in nonpolar hydrocarbons, whereas in polar organic liquids, the dispersity and stability depend on the functional group, dielectric constant and carbochain length of the organic liquids. After some of the organic groups on the powder surfaces are eliminated by heat-treatment, the dispersity is decreased. The V-A Of the dispersions can be adequately used to predicate the stability of the nonpolar hydrocarbon dispersions. However, in polar organic liquids, the contribution coming from the electric double layers and solvation layers should also be considered. (C) 2001 Elsevier Science Ltd and Techna S.r.l. All rights reserved.
原文出处	://WOS:000166552500011
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/36612]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Z. Chen,Y. Liang,F. Zheng,et al. The dispersion behavior of Si-C-N nanopowders in organic liquids[J]. Ceramics International,2001,27(1):73-79.
APA	Y. Z. Chen,Y. Liang,F. Zheng,R. C. Zhou,&Z. C. Feng.(2001).The dispersion behavior of Si-C-N nanopowders in organic liquids.Ceramics International,27(1),73-79.
MLA	Y. Z. Chen,et al."The dispersion behavior of Si-C-N nanopowders in organic liquids".Ceramics International 27.1(2001):73-79.