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Spheroidization of silica powders by radio frequency inductively coupled plasma with Ar-H-2 and Ar-N-2 as the sheath gases at atmospheric pressure
Li, Lin; Ni, Guo-hua; Guo, Qi-jia; Lin, Qi-fu; Zhao, Peng; Cheng, Jun-li
2017-09-01
Source PublicationINTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
Volume24Issue:9Pages:1067-1074
AbstractAmorphous spherical silica powders were prepared by inductively coupled thermal plasma treatment at a radio frequency of 36.2 MHz. The effects of the added content of hydrogen and nitrogen into argon (serving as the sheath gas), as well as the carrier gas flow rate, on the spheroidization rate of silica powders, were investigated. The prepared silica powders before and after plasma treatment were examined by scanning electron microscopy, X-ray diffraction, and laser granulometric analysis. Results indicated that the average size of the silica particles increased, and the transformation of crystals into the amorphous state occurred after plasma treatment. Discharge image processing was employed to analyze the effect of the plasma temperature field on the spheroidization rate. The spheroidization rate of the silica powder increased with the increase of the hydrogen content in the sheath gas. On the other hand, the spheroidization rate of the silica power first increased and then decreased with the increase of the nitrogen content in the sheath gas. Moreover, the amorphous content increased with the increase of the spheroidization rate of the silica powder.
SubtypeArticle
KeywordSilica Powders Spheroidization Inductively Coupled Plasma Mixed Gas
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
Funding OrganizationNational Natural Science Foundation of China(21377133 ; National Natural Science Foundation of China(21377133 ; 11535003 ; 11535003 ; 11405221) ; 11405221) ; National Natural Science Foundation of China(21377133 ; National Natural Science Foundation of China(21377133 ; 11535003 ; 11535003 ; 11405221) ; 11405221)
DOI10.1007/s12613-017-1497-z
WOS KeywordTHERMAL PLASMA ; CU3V2O8 NANOPARTICLES ; OPTICAL-PROPERTIES ; SPHERICAL SILICA ; LIGAND
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(21377133 ; National Natural Science Foundation of China(21377133 ; 11535003 ; 11535003 ; 11405221) ; 11405221) ; National Natural Science Foundation of China(21377133 ; National Natural Science Foundation of China(21377133 ; 11535003 ; 11535003 ; 11405221) ; 11405221)
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS IDWOS:000409182300014
Citation statistics
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/33639
Collection中科院等离子体物理研究所
AffiliationChinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Li, Lin,Ni, Guo-hua,Guo, Qi-jia,et al. Spheroidization of silica powders by radio frequency inductively coupled plasma with Ar-H-2 and Ar-N-2 as the sheath gases at atmospheric pressure[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2017,24(9):1067-1074.
APA Li, Lin,Ni, Guo-hua,Guo, Qi-jia,Lin, Qi-fu,Zhao, Peng,&Cheng, Jun-li.(2017).Spheroidization of silica powders by radio frequency inductively coupled plasma with Ar-H-2 and Ar-N-2 as the sheath gases at atmospheric pressure.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,24(9),1067-1074.
MLA Li, Lin,et al."Spheroidization of silica powders by radio frequency inductively coupled plasma with Ar-H-2 and Ar-N-2 as the sheath gases at atmospheric pressure".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 24.9(2017):1067-1074.
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