NDLI: Effects of sintering atmosphere on the physical and mechanical properties of modified BOF slag glass

Content Provider	Springer Nature Link
Author	Dai, Wen bin Li, Yu Cang, Da qiang Zhou, Yuan yuan Fan, Yong
Copyright Year	2014
Abstract	This study proposes an efficient way to utilize all the chemical components of the basic oxygen furnace (BOF) slag to prepare high value-added glass-ceramics. A molten modified BOF slag was converted from the melting BOF slag by reducing it and separating out iron component in it, and the modified BOF slag was then quenched in water to form glasses with different basicities. The glasses were subsequently sintered in the temperature range of 600–1000°C in air or nitrogen atmosphere for 1 h. The effects of different atmospheres on the physical and mechanical properties of sintered samples were studied by using differential scanning calorimetry (DSC), X-ray diffraction (XRD) and scanning electron microscopy (SEM) and by conducting experiment on evaluating the sintering shrinkage, water absorption and bulk density. It is found that the kinetics of the sintering process is significantly affected by sintering atmosphere. In particular, compared with sintering in air atmosphere, sintering in N$_{2}$ atmosphere promotes the synergistic growth of pyroxene and melilite crystalline phases, which can contribute to better mechanical properties and denser microstructure.
Starting Page	494
Ending Page	502
Page Count	9
File Format	PDF
ISSN	16744799
Journal	International Journal of Minerals, Metallurgy, and Materials
Volume Number	21
Issue Number	5
e-ISSN	1869103X
Language	English
Publisher	University of Science and Technology Beijing
Publisher Date	2014-05-07
Publisher Place	Beijing
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	glass ceramics slags sintering iron oxides physical properties mechanical properties 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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