Method for hydrophobicizing a zirconia surface
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United States of America Patent
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Nov 13, 2018
Grant Date -
Sep 14, 2017
app pub date -
May 19, 2017
filing date -
Nov 17, 2015
priority date (Note) -
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Abstract
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.
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