Patent ID: 6602813
Filing Date: 2003-08-05
Classification: C04B,F16C,G11B,H01L

Abstract:
An electrostatic removing member comprising a semiconductive zirconia sintered body having 60 to 90 weight % of ZrO2 with a stabilizing agent present in amount by molar percent of ZrO2 selected from the group consisting of 3 to 9 mol % Y2O3, 16 to 26 mol % MgO, 8 to 12 mol % CaO, and 10 to 16 mol % CeO2, and from more than 10 to less than about 40 weight % of a conductivity giving agent including one or more metal oxides,wherein the semiconductive zirconia sintered body has a volume specific resistance value from 106 to 109&OHgr;Â·cm, and wherein the semiconductive zirconia sintered body has less than or equal to 2 wt % Al2O3.