... alkali,salt and gas of deleterious,long contact fatigue life,high hardness,resistance to wear ... impingement and frictional modes5, Good thermal shock resistance6, Good chemical resistanceTypical Uses1, Rotating bearing balls and rollers2, Cutting ... , Seals,bearings4, Ball valve parts5, Hot gas flow liners6, Heat exchangers7, Semiconductor process equipment ceramic angular contact ball bearings