MgAl2O4 spinel refractory as containment liner for high-temperature alkali salt containing environments

摘要

A method includes containing a high-temperature alkali salt containing environment using a refractory containment liner containing MgAl₂O₄ spinel. A method, includes forming a refractory brick containing MgAl₂O₄ spinel having an exterior chill zone defined by substantially columnar crystallization and an interior zone defined by substantially equiaxed crystallization; and removing at least a portion of the exterior chill zone from the refractory brick containing MgAl₂O₄ spinel by scalping the refractory brick containing MgAl₂O₄ spinel to define at least one outer surface having an area of substantially equiaxed crystallization. A product of manufacture includes a refractory brick containing MgAl₂O₄ spinel including an interior zone defined by substantially equiaxed crystallization; and at least one outer surface having an area of substantially equiaxed crystallization.