Structure and creep of mullite-corundum refractories

Unsteady creep equation in refractory materials during monoaxial compression

“…The first is typical of aluminosilicate refractories containing significant amounts of glass phase [7], and the second -for magnesia refractories in which the absence of the glass phase contributes to the develop- ment of direct bonds between the grains of periclase and chromite [8]. It is of interest to establish how the difference in the structural changes, taking place during creep of refractories, affects the functional relationship between the deformation and time~ Actual approximation of curves c(~) with the aid of (4) requires a knowledge of the degree factor p. Then the remaining coefficients can be used to determine the construction of the relatioships…”

“…1 shows the results of treating data for the creep of mullite corundum refractories, undergoing significant densification during deformation [7,9]. As an illustration Fig.…”