Characterisation of refractory ceramic pressed body containing industrial waste
authors Frade, SB; Gomes, G; Correia, SL; Segadaes, AM
nationality International
author keywords Industrial waste; Microstructural characterization; Physical and mechanical properties; Refractory ceramic body
keywords Alumina; Brick; Ceramic materials; Characterization; Industrial wastes; Melting furnaces; Mixtures; Processing; Scanning electron microscopy; Shrinkage; Silica; Sintered alumina; Sintering; Micro-structural characterization; Modulus of rupture; Physical and mechanical properties; Processing condition; Refractory bricks; Refractory ceramics; Secondary electrons; Sintering process; Refractory materials
abstract This study investigates the use of an industrial refractory brick waste in the refractory based silica and alumina ceramic body. From the characterization of the waste, a mixture containing a clay, silica, alumina and waste was processed via wet route and sintered at 1400 °C. The specimens were evaluated in dry (density) and after sintering (linear shrinkage, density and modulus of rupture).Microstructural characterization by scanning electron microscopy (secondary electron) revealed a microstructure unevenly and a presence of big porous which shows also small amounts of vitreous phase, which can be related to sintering process not fully finished. The results for the linear shrinkage (about 6 %) and modulus of rupture at three points (about 63 MPa) showed that the mixture containing the refractory brick waste and the processing conditions were satisfactory for obtaining a suitable refractory material for the manufacture of bricks for melting furnaces. © 2018 Trans Tech Publications, Switzerland.
publisher Trans Tech Publications Ltd
year published 2018
volume 912 MSF
beginning page 71
ending page 76
digital object identifier (doi) 10.4028/
unique article identifier 2-s2.0-85042493591
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