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Characteristics of refractory castables containing mullite and spinel coated graphites
, S A ANSAR, D PAUL, G BHOWMICK, S SENGUPTA
Published in TAYLOR & FRANCIS INC
2012
Volume: 27
   
Issue: 2
Pages: 177 - 184
Abstract
The performance of high alumina castables containing mullite and spinel coated graphites was investigated to explore their commercial application in carbon containing refractory composites. It was 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. The microstructures of these two castables, along with the other containing uncoated graphites, were also studied. Differential thermal analysis and X-ray diffraction patterns of heat-treated carbon-containing castable composites have also been noted. Castables containing mullite-coated graphite were found to be more resistant to repeated thermal shock cycles, whereas those containing spinel-coated graphites were more encouraging when slag resistance and overall physical properties are concerned. © 2012 Copyright Taylor and Francis Group, LLC.
About the journal
JournalMaterials and Manufacturing Processes
PublisherTAYLOR & FRANCIS INC
ISSN1042-6914
Open AccessNo