Preparation of hollow silica spheres by DC thermal plasma

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	Preparation of hollow silica spheres by DC thermal plasma
	Lu, Chen 1,2; Fan, Junmei1 ; Zhao, Peichen 1; Yuan, Fangli 1
刊名	POWDER TECHNOLOGY
	2014-11-01
卷号	266 期号:NOV.页码:210-217
关键词	Hollow silica spheres Spray drying DC thermal plasma sintering Cavity formation
ISSN号	0032-5910
其他题名	Powder Technol.
中文摘要	Hollow silica spheres (HSSs) are prepared via a two-step method: producing micrometer-sized agglomerated granules with nano-silica by spray drying and spheroidizing and hollowing the spray-dried granules (SDG) by DC thermal plasma sintering. The morphology, particle size distribution and porosity of SDG are affected by the solid concentration of the slurry. The shell structure and shell thickness of HSSs can be tuned by plasma sintering different kinds of SDG. The cavity formation mechanisms of two different types of HSSs, including single large void and multiple small voids are further investigated. The DC thermal plasma sintering method provides a facile way to produce HSSs with low density and high crush strength which have promising applications in many fields. (C) 2014 Elsevier B.V. All rights reserved.
英文摘要	Hollow silica spheres (HSSs) are prepared via a two-step method: producing micrometer-sized agglomerated granules with nano-silica by spray drying and spheroidizing and hollowing the spray-dried granules (SDG) by DC thermal plasma sintering. The morphology, particle size distribution and porosity of SDG are affected by the solid concentration of the slurry. The shell structure and shell thickness of HSSs can be tuned by plasma sintering different kinds of SDG. The cavity formation mechanisms of two different types of HSSs, including single large void and multiple small voids are further investigated. The DC thermal plasma sintering method provides a facile way to produce HSSs with low density and high crush strength which have promising applications in many fields. (C) 2014 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	FILLED POLYPROPYLENE COMPOSITES ; PARTICLES ; CONDUCTIVITY ; MICROSPHERES ; FABRICATION ; MORPHOLOGY ; POWDERS ; SHELLS
收录类别	SCI
原文出处	://WOS:000341221800025
语种	英语
WOS记录号	WOS:000341221800025
公开日期	2014-09-30
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/11483]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Lu, Chen,Fan, Junmei,Zhao, Peichen,et al. Preparation of hollow silica spheres by DC thermal plasma[J]. POWDER TECHNOLOGY,2014,266(NOV.):210-217.
APA	Lu, Chen,Fan, Junmei,Zhao, Peichen,&Yuan, Fangli.(2014).Preparation of hollow silica spheres by DC thermal plasma.POWDER TECHNOLOGY,266(NOV.),210-217.
MLA	Lu, Chen,et al."Preparation of hollow silica spheres by DC thermal plasma".POWDER TECHNOLOGY 266.NOV.(2014):210-217.