Ceramic armor is defined as protective materials or composites that are used by armored vehicles and in personnel armor for their attenuation properties. These properties along with thermal and mechanical properties can be tailored as is the case for metal-ceramic composites and reaction bonded composites for armor manufacture. L&L Kiln Mfg. makes large-format industrial Bell-Lift kilns (100 ft³) which have been used in the manufacture of ceramic armor. The kiln can be equipped with or without a retort and with inert atmosphere controls. The kilns are easy to load, and economical to run and maintain.