... , Ball valve parts5, Hot gas flow liners6, Heat exchangers7, Semiconductor process equipmentZirconium Oxide(ZrO2)Key Properties1, Use temperatures ... toughness9, High hardnessTypical Uses1, Precision ball valve balls and seats2, High density ball and pebble mill grinding media3, ... turbine components2, Suction box covers3, Seals,bearings4, Ball valve parts5, Hot gas flow liners6, Heat exchangers7, ...