Crystallization Kinetics of CaO-SiO2(CaO/SiO2=1)-TiO2-10 mass%B2O3 Glassy Slag by Differential Thermal Analysis

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	Crystallization Kinetics of CaO-SiO2(CaO/SiO2=1)-TiO2-10 mass%B2O3 Glassy Slag by Differential Thermal Analysis
	Wang, Zhen 1,2; Shu, Qifeng 1,3; Chou, Kuochih 1,3
刊名	ISIJ INTERNATIONAL
	2015
卷号	55 期号:4 页码:709-716
关键词	fluoride-free mould fluxes crystallization differential thermal analysis
ISSN号	0915-1559
英文摘要	Crystallization characteristics of the CaO-SiO2-TiO2-10%B2O3 glassy slag at w(CaO)/w(SiO2)=1 have been studied by Differential Thermal Analysis (DTA) and Matusita-Sakka method. Crystallization products have been distinguished by employing X-ray diffraction (XRD) and Scanning Electron Microscopy equipped with Energy Dispersive Spectroscopy (SEM-EDS). As the TiO2 content is within 10-18%, the crystal phase precipitated is mainly CaSiO3, and the effective activation energies for crystal growth increase with the increase of TiO2 content. Crystallization mechanism for CaSiO3 shifted from surface crystallization to one-dimensional growth with increase of TiO2. As the TiO2 content in slag further increases to 22% and 26%, CaTiSiO5 becomes the predominant crystal phase precipitated, and the effective activation energies for crystal growth decrease with the increase of TiO2 content. Crystallization mechanism for CaTiSiO5 is mainly surface crystallization. Therefore, with the increase of TiO2 content, the crystallization ability of the CaO-SiO2-TiO2-10%B2O3 glass system decreases initially and then increases.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Metallurgy & Metallurgical Engineering
研究领域[WOS]	Metallurgy & Metallurgical Engineering
关键词[WOS]	CONTINUOUS-CASTING MOLD ; HOT THERMOCOUPLE TECHNIQUE ; ZINC SILICATE GLASS ; FLUORIDE-FREE ; HEAT-TRANSFER ; AMORPHOUS MATERIALS ; PHASE-CHANGE ; FLUXES ; VISCOSITY ; BEHAVIOR
收录类别	SCI
语种	英语
WOS记录号	WOS:000353609000001
公开日期	2015-07-08
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/16751]
专题	过程工程研究所_多相复杂系统国家重点实验室
作者单位	1.Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 3.Univ Sci & Technol Beijing, Sch Met & Ecol Engn, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zhen,Shu, Qifeng,Chou, Kuochih. Crystallization Kinetics of CaO-SiO2(CaO/SiO2=1)-TiO2-10 mass%B2O3 Glassy Slag by Differential Thermal Analysis[J]. ISIJ INTERNATIONAL,2015,55(4):709-716.
APA	Wang, Zhen,Shu, Qifeng,&Chou, Kuochih.(2015).Crystallization Kinetics of CaO-SiO2(CaO/SiO2=1)-TiO2-10 mass%B2O3 Glassy Slag by Differential Thermal Analysis.ISIJ INTERNATIONAL,55(4),709-716.
MLA	Wang, Zhen,et al."Crystallization Kinetics of CaO-SiO2(CaO/SiO2=1)-TiO2-10 mass%B2O3 Glassy Slag by Differential Thermal Analysis".ISIJ INTERNATIONAL 55.4(2015):709-716.