Patent ID: 8808523
Filing Date: 2014-08-19
Classification: C23C,C25D

Abstract:
1. A method for forming a ZrO 2 film by plasma electrolytic oxidation (PEO), comprising steps of: (a) placing an anode, which is a substrate deposited with a ZrN film, and a cathode into an electrolyte of which the temperature range is from 65° C. to 75° C., wherein said electrolyte contains barium acetate or barium hydroxide ranging from 0.3 M to 0.7 M and sodium hydroxide or potassium hydroxide ranging from 1.5 M to 2.5 M; and (b) applying a voltage ranging from 50 V (volts) to 1000 V to said anode and cathode to form a ZrO