King Fahd University of Petroleum and Minerals

Haider Ali

Bekir Sami Yilbas

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 &#x3bc;m produced by a COlaser with a pulse frequency of 1200-1800 Hz onto the ceramic surface, and a Nassist 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.

Method for hydrophobicizing a zirconia surface

A method of treating a metallic surface comprising a copper alloy, such as phosphor bronze, whereby the metallic surface is ablated by directing a laser beam with a diameter of 200-400 &#x3bc;m produced by a COlaser with a pulse frequency of 1200-1800 HZ onto the metallic surface, and a Nassist gas is concurrently applied with a pressure of 550-650 KPa co-axially with the laser beam to form an ablated metallic surface comprising microgrooves with CuN present on a surface of the microgrooves, wherein the ablated metallic surface has a higher surface hydrophobicity than the metallic surface prior to the ablating.

Growing community of inventors

Dhahran, Saudi Arabia

Haider Ali