Journal ArticleDOI
In situ spinel bonded refractory castable in relation to co-precipitation and sol–gel derived spinel forming agents
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TLDR
In this paper, two types of in situ spinel bonded low cement high alumina based castable refractories were characterized and compared in terms of bulk density, apparent porosity, cold crushing strength, flexural strength, volume shrinkage, spalling resistance, and XRD phase analysis.About:
This article is published in Ceramics International.The article was published on 2003-01-01. It has received 24 citations till now. The article focuses on the topics: Spinel & Microstructure.read more
Citations
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Journal ArticleDOI
Effect of preformed and in situ spinels on microstructure and properties of a low cement refractory castable
S. Mukhopadhyay,P. K. Das Poddar +1 more
TL;DR: In this paper, two types of magnesium-aluminate spinels, one commercially available as preformed powder and the other prepared from cheaper precursors by the sol-gel route as a semidried reactive mass, were characterized in terms of particle size distribution, XRD phase evolution and chemical composition.
Journal ArticleDOI
Phase composition of bauxite-based refractory castables
TL;DR: The phase composition of the prepared castable samples was investigated by using X-ray diffraction (XRD) analysis, scanning electron microscopy, energy dispersive Xray analysis, differential thermal analysis (DTA) and thermal gravimetric analysis as mentioned in this paper.
Journal ArticleDOI
Influence of gel-derived nanocrystalline spinel in a high alumina castable: Part 2
TL;DR: In this article, an in situ spinel-alumina castable was prepared by incorporating 8.0% chemical grade pure magnesia fine in a high alumina-based low cement castable.
Journal ArticleDOI
Characteristics of Refractory Castables Containing Mullite and Spinel Coated Graphites
TL;DR: In this article, the performance of high alumina castables containing mullite and spinel coated graphites was investigated to explore their commercial application in carbon containing refractory composites, compared in terms of thermal shock resistance, refractoriness under load, static slag resistance test, pore size distribution, and physical properties, e.g., apparent porosity and cold crushing strength.
References
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Journal ArticleDOI
Microstructural evolution in self-forming spinel/calcium aluminate-bonded castable refractories
M. Fuhrer,A. Hey,W.E. Lee +2 more
TL;DR: In this article, in-situ spinel formation occurs between 1200 and 1400 °C with a net-like morphology interlinked with CaO-MgO-Al2O3-SiO2 phases.
Journal ArticleDOI
Thermomechanical Behavior of High‐Alumina Refractory Castables with Synthetic Spinel Additions
Fabien Simonin,Christian Olagnon,Sandrine Maximilien,Gilbert Fantozzi,Luiz Antonio Diaz,Ramón Torrecillas +5 more
TL;DR: In this article, the thermomechanical behavior of a high-alumina refractory that contains 10 wt% of synthetic spinel has been studied, and results have been correlated with the microstructural and mineralogical evolutions using X-ray diffraction and scanning electron microscopy.
Journal ArticleDOI
Microstructural analysis of corroded alumina-spinel castable refractories
TL;DR: In this article, microstructural analysis indicates that the corrosion of spinel-alumina castables by a liquid steel ladle slag involves initial reaction of CaO in the slag with alumina fines in the refractory bond.
Journal ArticleDOI
Permeability of High-Alumina Refractory Castables Based on Various Hydraulic Binders
Murilo D. M. Innocentini,A. R. F. Pardo,Victor C. Pandolfelli,B. A. Menegazzo,L. R. M. Bittencourt,Roberto P. Rettore +5 more
TL;DR: In this article, the authors investigated the changes in the permeability of high-alumina self-flowing refractory castables based on calcium aluminate cement (CAC) and hydratable alumina binder (HAB) pretreated between 110° and 1650°C.
Journal ArticleDOI
Characterization of MgAl2O4 Precursor Powders Prepared by Aqueous Route
TL;DR: In this article, the spinel precursors exhibit different morphology and crystallization behavior, and they have different aluminum local structures, possibly stabilized by residual carbonates, characteristic of the complexed precursor.
Related Papers (5)
Effect of preformed and in situ spinels on microstructure and properties of a low cement refractory castable
S. Mukhopadhyay,P. K. Das Poddar +1 more
Microstructural evolution in self-forming spinel/calcium aluminate-bonded castable refractories
M. Fuhrer,A. Hey,W.E. Lee +2 more