Published June 2018 | Version v1
Journal article Metadata-only

Influence of CeO2 addition on the preparation of foamed glass-ceramics from high-titanium blast furnace slag

Creators

  • 1. Sichuan University, School of Manufacturing Science and Engineering (China)

Description

Foamed glass-ceramics doped with cerium oxide (CeO2) were successfully prepared from high-titanium blast furnace slag by one-step sintering. The influence of CeO2 addition (1.5wt%–3.5wt%) on the crystalline phases, microstructure, and properties of foamed glass-ceramics was studied. Results show that CeO2 improves the stability of the glass phase and changes the two-dimensional crystallization mechanism into three-dimensional one. XRD analysis indicates the presence of Ca(Mg, Fe)Si2O6 and Ca(Ti, Mg, Al)(Si, Al)2O6 in all sintered samples. Added with CeO2, TiCeO4 precipitates, and crystallinity increases, leading to increased thickness of pore walls and uniform pores. The comprehensive properties of foamed glass-ceramics are better than that of samples without CeO2. In particular, the sample added with a suitable amount of CeO2 (2.5wt%) exhibits bulk density that is similar to and compressive strength (14.9 MPa) that is more than twice of foamed glass-ceramics without CeO2.

Additional details

Identifiers

DOI
10.1007/s12613-018-1616-5;

Publishing Information

Journal Title
International Journal of Minerals, Metallurgy, and Materials
Journal Volume
25
Journal Issue
6
Journal Page Range
p. 689-695
ISSN
1674-4799

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
50027776
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BLAST FURNACES; BULK DENSITY; CERAMICS; CERIUM OXIDES; COMPRESSION STRENGTH; CRYSTALLIZATION; DOPED MATERIALS; FOAMS; GLASS; MICROSTRUCTURE; PRECIPITATION; PRESSURE RANGE MEGA PA; SINTERING; SLAGS; STABILITY; THICKNESS; THREE-DIMENSIONAL LATTICES; TWO-DIMENSIONAL SYSTEMS; X-RAY DIFFRACTION
Descriptors DEC
CERIUM COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; COLLOIDS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DENSITY; DIFFRACTION; DIMENSIONS; DISPERSIONS; FABRICATION; FURNACES; MATERIALS; MECHANICAL PROPERTIES; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; PRESSURE RANGE; RARE EARTH COMPOUNDS; SCATTERING; SEPARATION PROCESSES

Optional Information

Copyright
Copyright (c) 2018 University of Science and Technology Beijing and Springer-Verlag GmbH Germany, part of Springer Nature