NDLI: Effects of additives on the phase transformation, occurrence state, and the interface of the Ti component in Ti-bearing blast furnace slag

Content Provider	Springer Nature Link
Author	Zhang, Li Zhang, Wu Zhang, Ju hua Li, Guang qiang
Copyright Year	2016
Abstract	The influences of additives on the phase transformation, occurrence state, and the interface of the Ti component in Ti-bearing blast furnace slag were investigated. After oxidation, most of the Ti component in the slag was enriched into the perovskite phase, which served as the Ti-rich phase during the crystallization process. The phase transformation, occurrence state, and the interface of the Ti component were observed to be affected by the addition of different types of agents. During the oxidation process, titanaugite and Ti-rich diopside phases gradually transformed into non-Ti phases (anorthite: CaMgSi$_{2}$O$_{6}$ and CaAl$_{2}$Si$_{2}$O$_{8}$) in the form of dendrites or columns, which were observed to be distributed at the surface of the perovskite phase. Several more cracks appeared along the grain boundaries of the perovskite phase after the addition of P$_{2}$O$_{5}$, facilitating the liberation of the perovskite phase. Composite additives combining both an acid and a base, such as CaO + CaF$_{2}$ or P$_{2}$O$_{5}$ + CaF$_{2}$, were used. We observed that the disadvantages of using single additives were successfully overcome.
Starting Page	1029
Ending Page	1040
Page Count	12
File Format	PDF
ISSN	16744799
Journal	International Journal of Minerals, Metallurgy, and Materials
Volume Number	23
Issue Number	9
e-ISSN	1869103X
Language	English
Publisher	University of Science and Technology Beijing
Publisher Date	2016-09-06
Publisher Place	Beijing
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	blast furnace slag titanium additives phase transformation interfaces Materials Science Metallic Materials Characterization and Evaluation of Materials Ceramics, Glass, Composites, Natural Methods Surfaces and Interfaces, Thin Films Tribology, Corrosion and Coatings
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Mechanics of Materials Metals and Alloys Geochemistry and Petrology Mechanical Engineering

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