Laser ablation method for treating a copper alloy containing metallic surface and increasing hydrophobicity

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United States of America Patent

PATENT NO 9981340
SERIAL NO

15085605

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Abstract

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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 μm produced by a CO2 laser with a pulse frequency of 1200-1800 HZ onto the metallic 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 metallic surface comprising microgrooves with Cu3N 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.

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Patent Owner(s)

Patent OwnerAddress
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSDHAHRAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ali, Haider Dhahran, SA 8 4
Yilbas, Bekir Sami Dhahran, SA 17 40

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