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

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	The dispersion behavior of Si-C-N nanopowders in organic liquids
	Y. Z. Chen; Y. Liang; F. Zheng; R. C. Zhou; Z. C. Feng
	2001
发表期刊	Ceramics International
ISSN	0272-8842
卷号	27 期号:1 页码:73-79
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.
部门归属	acad sinica, inst met res, dept laser proc, shenyang 110015, peoples r china.;chen, yz (reprint author), acad sinica, inst met res, dept laser proc, shenyang 110015, peoples r china
关键词	Suspensions Surfaces Si-c-n Ceramic Materials Silicon Stability Powders Forces
URL	查看原文
WOS记录号	WOS:000166552500011
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36612
专题	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.