Laser ablation method for treating a zirconia containing ceramic surface

摘要

A method of treating a ceramic surface containing zirconia, whereby the ceramic surface is ablated by directing a laser beam with a diameter of 200-400 μm produced by a CO₂ laser with a pulse frequency of 1200-1800 Hz onto the ceramic surface, and a N₂ assist gas is concurrently applied with a pressure of 550-650 KPa co-axially with the laser beam to form an ablated ceramic surface comprising microgrooves with ZrN present on a surface of the microgrooves, wherein the ablated ceramic surface has a higher surface hydrophobicity than the ceramic surface prior to the ablating.