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Preparation of hollow silica spheres by DC thermal plasma
Alternative TitlePowder Technol.
Lu, Chen1,2; Fan, Junmei1; Zhao, Peichen1; Yuan, Fangli1
2014-11-01
Source PublicationPOWDER TECHNOLOGY
ISSN0032-5910
Volume266Issue:NOV.Pages:210-217
AbstractHollow 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.; 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.
KeywordHollow Silica Spheres Spray Drying Dc Thermal Plasma Sintering Cavity Formation
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.powtec.2014.06.045
URL查看原文
Indexed BySCI
Language英语
WOS KeywordFILLED POLYPROPYLENE COMPOSITES ; PARTICLES ; CONDUCTIVITY ; MICROSPHERES ; FABRICATION ; MORPHOLOGY ; POWDERS ; SHELLS
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000341221800025
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11483
Collection研究所(批量导入)
Affiliation1.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
Recommended Citation
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.
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