Abstract: Processes of forming or repairing a structure used in a high temperature application are provided whereby a refractory article lining that is glazed on a face closest to a structure wall is used to form or replace a portion of the refractory surface in such a structure. The refractory articles may be chemically and/or mechanically bonded to an adhesive mortar capable of chemically reacting with the material used to form the brick to form a high strength, substantially monolithic surface that resists penetration by flux salts dramatically increasing the life of the repair. The process allows for low cost, long lasting repair of structures used in high temperature applications that was previously unrealizable. Also provided are refractory articles with a glaze coating on at least a portion thereof that prevents flux salt penetration. The refractory articles are optionally used in a system along with a complementary adhesive mortar.