An Investigation of the Evaporation of B2O3 and Na2O in F-Free Mold   Slags

doi:10.2355/isijinternational.51.80

CORC > 北京大学 > 工学院

	An Investigation of the Evaporation of B2O3 and Na2O in F-Free Mold Slags
	Zhang, Zuo Tai ; Sridhar, Seetharaman ; Cho, Jung Wook
刊名	isij international
	2011
关键词	F-free mold slag evaporation TiO2 ZrO2 thermogravimetric analysis HEAT-TRANSFER FLUXES CRYSTALLIZATION VISCOSITIES SYSTEM STEEL MELTS GLASS
DOI	10.2355/isijinternational.51.80
英文摘要	The present paper deals with the investigation of evaporation of B2O3 and Na2O from F-free mold slags in the temperature range of 1 573 to 1 673 K by Thermogravimetric Analysis (TGA) method. The study was aimed at elucidating the evaporation mechanism during continuous casting and identifying the resulting effect on the flux composition. The basicity was found to slightly enhance the evaporation rate of mold slags, suggesting that the mass transport in the liquid phase plays a role in controlling the evaporation. TiO2 addition resulted in an increasing evaporation rate due to the decrease of viscosity of the slag. The diffusional flux resulting from gas phase mass transfer from the gas/slag interface to the bulk gas was theoretically estimated and the results suggest that this process is not the controlling step. The evaporation rate was found to increase with increasing ZrO2 addition possibly due to the fact that the solid particles existing in the slag act as nucleation sites of bubbles formation. The evaporation rate was also found to increase with increasing experimental temperatures.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000286683800012&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Metallurgy & Metallurgical Engineering; SCI(E); 9; ARTICLE; 1; 80-87; 51
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/316043]
专题	工学院
推荐引用方式 GB/T 7714	Zhang, Zuo Tai,Sridhar, Seetharaman,Cho, Jung Wook. An Investigation of the Evaporation of B2O3 and Na2O in F-Free Mold Slags[J]. isij international,2011.
APA	Zhang, Zuo Tai,Sridhar, Seetharaman,&Cho, Jung Wook.(2011).An Investigation of the Evaporation of B2O3 and Na2O in F-Free Mold Slags.isij international.
MLA	Zhang, Zuo Tai,et al."An Investigation of the Evaporation of B2O3 and Na2O in F-Free Mold Slags".isij international (2011).