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Permeability of Refractory Castables at High Temperatures
Author(s) -
Innocentini Murilo D. M.,
Silva Maurícioi G.,
Menegazzo Bruno A.,
Pandolfelli Victor C.
Publication year - 2001
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2001.tb00715.x
Subject(s) - materials science , permeability (electromagnetism) , refractory (planetary science) , permeation , composite material , porosity , corrosion , molten metal , thermal , thermal expansion , metallurgy , thermodynamics , chemistry , membrane , biochemistry , physics
Temperature is an important factor affectng the permeation of fluids in refractory castables. Because of experimental difficulties, however, permeability parameters are usually obtained at room temperature and then extrapolated to the temperature of interest, with no concern regarding porous structure modification (thermal expansion, etc.). In this work, an apparatus has been developed to evaluate the air‐flow permeability of refractory castables at temperatures up to 800°C. The objective is to investigate modifications in the permeability constants obtained by Forchheimer's equation to provide a more realistic relationship with castable processing and molten‐metal corrosion parameters.