Dispersion behavior of laser-synthesized Si3N4 nanopowders in N-N-dimethylformamide

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	Dispersion behavior of laser-synthesized Si3N4 nanopowders in N-N-dimethylformamide
	R. C. Zhou; Y. Z. Chen; Y. Liang; F. Zheng; J. L. Li
	2002
发表期刊	Ceramics International
ISSN	0272-8842
卷号	28 期号:7 页码:705-709
摘要	The dispersion behavior of Si3N4 nanopowders prepared by laser-induced gas-phase reaction in a non-aqueous solvent, N-N-dimethylformamide (DNIF) was studied, and triethanolamine (TEA) was selected as a dispersant. One hundred and sixty-six-day sedimentation tests were used to study the stability of the suspensions. Photon correlation spectroscopy was employed to measure the sizes of aggregates and coagulation rates. TEA was proved an effective dispersant for nano-Si3N4 in DMF, presoaking treatment could enhance the effect of the dispersant. TEA 1.0 wt.% referred to Si3N4 and a 1-month-presoaking gave the best dispersion, the dispersion stability was improved from several minutes to several months, and the average size of the aggregates was reduced to about a twenty-fifth. The dispersion ability of TEA was believed being related to its strong affinities both to the powder surface and to the solvent. (C) 2002 Elsevier Science Ltd and Techna S.r.l. All rights reserved.
部门归属	acad sinica, inst met res, laser proc dept, shenyang 110015, peoples r china.;zhou, rc (reprint author), acad sinica, inst met res, laser proc dept, shenyang 110015, peoples r china
关键词	Si3n4 Dispersion Nanopowders N-n-dimethylformamide Triethanolamine Composite Powders
URL	查看原文
WOS记录号	WOS:000178521800002
引用统计	被引频次：10[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/321006/36590
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	R. C. Zhou,Y. Z. Chen,Y. Liang,et al. Dispersion behavior of laser-synthesized Si3N4 nanopowders in N-N-dimethylformamide[J]. Ceramics International,2002,28(7):705-709.
APA	R. C. Zhou,Y. Z. Chen,Y. Liang,F. Zheng,&J. L. Li.(2002).Dispersion behavior of laser-synthesized Si3N4 nanopowders in N-N-dimethylformamide.Ceramics International,28(7),705-709.
MLA	R. C. Zhou,et al."Dispersion behavior of laser-synthesized Si3N4 nanopowders in N-N-dimethylformamide".Ceramics International 28.7(2002):705-709.