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Several kinds of inorganic sol and gel materials were applied to high alumina based low and ultra low cement refractory castable compositions and these were fired at elevated temperature. A scanning electron microscope (SEM) study of the fired specimens was performed and the microstructural features were analysed in terms of the desirable properties of a refractory material, with an aim to elucidate...
This paper deals with the preparation and characterization of two types of in situ spinel bonded low cement high alumina based castable refractories. Semidried magnesium aluminate mass was prepared from cheaper precursors via coprecipitation and sol-gel routes for application in a refractory castable composition in different concentrations. The pH, average particle size, solid content, DTG analysis...
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