Ukrainian Journal of Physical Optics 

Volume 21, Issue 4, 2020
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Picosecond-laser processing of stainless steel for fabricating superhydrophobic surfaces

1Dupliak I., 1Yuchen Liang, 1Guozhu Yan, 1*Fenping Li, 2Ivaniuk K. and 3Xiaogang Li

1Wenzhou University Institute of Laser and Optoelectronic Intelligent  Manufacturing, Ocean Science and Technology Innovation Park, No. 19 Binhai 3rd Road, Yongxing Street, Longwan District, Wenzhou, Zhejiang, China
2Lviv Polytechnic National University, 12 S. Bandera Street, 79013 Lviv, Ukraine.
3Lyncwell Innovation Intelligent System (Zhejiang) Co., Ltd., Ocean Science and Technology Innovation Park, No. 19 Binhai 3rd Road, Yongxing Street, Longwan District, Wenzhou, Zhejiang, China

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Abstract. We create a high-precision surface microstructure at the surfaces of SAE 304 stainless steel plates, using picosecond-laser pulses with high repetition rates. The surfaces acquire cross-groove patterns due to a line-by-line laser ablation technology. The wettability of the microstructured metal surface is studied. The microstructured surface provides a superhydrophobicity with good anticorrosion and antibacterial properties, which can extend significantly the scope of applications of the underlying material

Keywords: picosecond lasers, superhydrophobicity, stainless steel, wettability

UDC: 535.21
Ukr. J. Phys. Opt. 21 171-177
doi: 10.3116/16091833/21/4/170/2020
Received: 11.08.2020

Анотація.  Використовуючи пікосекундні лазерні імпульси з високою швидкістю повторення, ми створили високоточну мікроструктуру на поверхнях пластинок з нержавіючої сталі SAE 304. Завдяки технології порядкової лазерної абляції поверхням надано форму поперечних канавок. Вивчено змочуваність мікроструктурованих металевих поверхонь. Мікроструктурована поверхня забезпечує надгідрофобність з хорошими антикорозійними та антибактеріальними властивостями, що може значно розширити сфери застосування основного матеріалу.
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