Selective Crystallization Behavior of CaO-SiO2-Al2O3-MgO-FetO-P2O5   Steelmaking Slags Modified through P2O5 and Al2O3

doi:10.1007/s11663-015-0391-1

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	Selective Crystallization Behavior of CaO-SiO2-Al2O3-MgO-FetO-P2O5 Steelmaking Slags Modified through P2O5 and Al2O3
	Wang, Zhanjun ; Sun, Yongqi ; Sridhar, Seetharaman ; Zhang, Mei ; Guo, Min ; Zhang, Zuotai
刊名	METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
	2015
关键词	DIFFERENTIAL THERMAL-ANALYSIS PHOSPHORUS ENRICHMENT 1573 K PHASE SILICATE SYSTEM GLASS 2CAO-CENTER-DOT-SIO2 SEPARATION MECHANISM
DOI	10.1007/s11663-015-0391-1
英文摘要	In this study, the selective crystallization behavior of synthetic FetO-rich steelmaking slags modified by P2O5 and Al2O3 additions was explored using non-isothermal differential scanning calorimetry, X-ray diffraction, and field emission scanning electron microscopy techniques. Continuous cooling transformation diagrams of Fe-enriched and P-enriched phases were constructed. It was found that P2O5 addition can suppress the crystallization due to the increasing viscosity caused by increasing degree of polymerization; however, an increase of Al2O3 content accelerated the precipitation of dystectic MgFeAlO4, copolymerized by [AlO4]-tetrahedra and [FeO4]-tetrahedra units. It was also noted that the content of phosphorus in P-enriched phase can reach a high value as 28.71 wt pct for the slags modified by 15.17 wt pct Al2O3. The non-isothermal crystallization kinetics derived from activation energy and the structure of the slags explained by Raman spectra were further analyzed, which was well in accordance with the above analysis.; National High Technology Research and Development Program of China (863 Program) [2012AA06A114]; Key Projects in the National Science & Technology Pillar Program [2013BAC14B07]; National Natural Science Foundation of China [51472007, 51272005, 5172001]; SCI(E); EI; ARTICLE; zhangmei@ustb.edu.cn; zuotaizhang@pku.edu.cn; 5; 2246-2254; 46
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/416010]
专题	工学院
推荐引用方式 GB/T 7714	Wang, Zhanjun,Sun, Yongqi,Sridhar, Seetharaman,et al. Selective Crystallization Behavior of CaO-SiO2-Al2O3-MgO-FetO-P2O5 Steelmaking Slags Modified through P2O5 and Al2O3[J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,2015.
APA	Wang, Zhanjun,Sun, Yongqi,Sridhar, Seetharaman,Zhang, Mei,Guo, Min,&Zhang, Zuotai.(2015).Selective Crystallization Behavior of CaO-SiO2-Al2O3-MgO-FetO-P2O5 Steelmaking Slags Modified through P2O5 and Al2O3.METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE.
MLA	Wang, Zhanjun,et al."Selective Crystallization Behavior of CaO-SiO2-Al2O3-MgO-FetO-P2O5 Steelmaking Slags Modified through P2O5 and Al2O3".METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE (2015).