Electrical conductivity and viscosity of cryolite electrolytes for solar grade silicon (Si-SoG) electrowinning

IMR OpenIR

	Electrical conductivity and viscosity of cryolite electrolytes for solar grade silicon (Si-SoG) electrowinning
其他题名	Electrical conductivity and viscosity of cryolite electrolytes for solar grade silicon (Si-SoG) electrowinning
	Korenko Michal 1; Vaskova Zuzana 1; Simko Frantisek 1; Simurda Michal 1; Ambrova Marta 2; Shi Zhongning 3
	2014
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	24 期号:12 页码:3944-3948
摘要	Electrical conductivity of molten binary and ternary mixtures based on the system NaF-AlF3-SiO2 was investigated by means of a tube-cell (made of pyrolytic boron nitride) with stationary electrodes. Viscosity of the binary system Na3AlF6-SiO2 was measured by computerized torsion pendulum method. It was found that conductivity and viscosity varied linearly with temperature in all investigated mixtures. Obtained content dependence of electrical conductivity (isotherms) was divided into two parts. First, one represented the content region up to 10% (mole fraction) of SiO2; second, the region was with a higher content of SiO2 (from 10% up to 40%). While the conductivity considerably decreased with content of SiO2 in the second part; it surprisingly rose in the low content range. A small addition of SiO2 to the molten cryolite (up to 10%) could slightly increase viscosity, but had no influence on the slope of this dependence since it is responsible for a glassy-networks formation in the melt. Further addition of SiO2 to the molten cryolite had a huge effect on the viscosity.
其他摘要	Electrical conductivity of molten binary and ternary mixtures based on the system NaF-AlF_3-SiO_2 was investigated by means of a tube–cell (made of pyrolytic boron nitride) with stationary electrodes. Viscosity of the binary system Na_3AlF_6-SiO_2 was measured by computerized torsion pendulum method. It was found that conductivity and viscosity varied linearly with temperature in all investigated mixtures. Obtained content dependence of electrical conductivity (isotherms) was divided into two parts. First, one represented the content region up to 10%(mole fraction) of SiO_2;second, the region was with a higher content of SiO_2 (from 10%up to 40%). While the conductivity considerably decreased with content of SiO_2 in the second part; it surprisingly rose in the low content range. A small addition of SiO_2 to the molten cryolite (up to 10%) could slightly increase viscosity, but had no influence on the slope of this dependence since it is responsible for a glassy-networks formation in the melt. Further addition of SiO_2 to the molten cryolite had a huge effect on the viscosity.
关键词	PYROLYTIC BORON-NITRIDE TUBE-TYPE CELL MIXTURES ELECTRODEPOSITION NA3ALF6-AL2O3-SIO2 MELTS electrical conductivity viscosity solar grade silicon molten salts molten cryolite-silica melts
收录类别	CSCD
语种	英语
资助项目	[Science and Technology Assistance Agency] ; [Slovak Grant Agency] ; [National Natural Science Foundation of China] ; [Program for New Century Excellent Talents, Ministry of Education of China]
CSCD记录号	CSCD:5329670
引用统计	被引频次：2[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/145635
专题	中国科学院金属研究所
作者单位	1.Slovak Acad Sci, Institute Inorgan Chem, SK-84536 Bratislava, Slovakia 2.陕西省地震局 3.中国科学院金属研究所
推荐引用方式 GB/T 7714	Korenko Michal,Vaskova Zuzana,Simko Frantisek,et al. Electrical conductivity and viscosity of cryolite electrolytes for solar grade silicon (Si-SoG) electrowinning[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2014,24(12):3944-3948.
APA	Korenko Michal,Vaskova Zuzana,Simko Frantisek,Simurda Michal,Ambrova Marta,&Shi Zhongning.(2014).Electrical conductivity and viscosity of cryolite electrolytes for solar grade silicon (Si-SoG) electrowinning.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,24(12),3944-3948.
MLA	Korenko Michal,et al."Electrical conductivity and viscosity of cryolite electrolytes for solar grade silicon (Si-SoG) electrowinning".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 24.12(2014):3944-3948.