The influence of femtosecond laser repetition rates and pulse numbers on the formation of micro/nano structures on stainless steel

Yao, Caizhen; Xu, Shuxin; Ye, Yayun; Jiang, Yong; Ding, Renjie; Gao, Wei; Yuan, Xiaodong

doi:10.1016/j.jallcom.2017.06.080

Cited by 21 publications

(8 citation statements)

References 17 publications

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“…Interestingly, with increasing PPS from 5 pulses to 300 pulses at the same F, the structure types were kept almost the same. However, the dimensions of nodular structures increased dramatically, which may be due to the incubation effect [27,29,30]. us, in this F-PPS model, F determines the type of structures and PPS determines the dimensions of structures.…”

Section: Resultsmentioning

confidence: 98%

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A Simple Way to Achieve Self-Cleaning Surfaces with Unique Antifouling Property

Yao

Jiang

et al. 2020

Journal of Chemistry

Self Cite

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Self-cleaning surfaces may have wide applications such as microfluidic devices, lab-on-a-chip, sensors, microreactors, air purification, and antimicrobial fields. In this article, by using a combination of femtosecond (fs) laser irradiation and fluorination technique, self-cleaning stainless steel surfaces with unique antifouling property were obtained. New insight is developed through a detailed analysis of the antifouling behavior of the self-cleaning surfaces. The surface free energy and its polar and disperse components were calculated by using the Owens–Wendt-–Rabel–Kaelble (OWRK) method. X-ray photoelectron spectroscopy was employed to analyse the surface elemental compositions and functional groups. The antifouling property of the surface was recorded by using a high speed camera. Water sliding angles (SAs) were reduced by fluorination treatment, resulting in low adhesive superhydrophobic surfaces with the self-cleaning property. The influences of micro/nanostructures, fluorination, and their combination on the surface free energy were investigated. The interaction process between water droplets and pollutants (inorganic and organic particles) on the treated surface was explored. The antifouling property of an optimized specimen (CA = 162° and SA = 1°) was tested and compared with the untreated sample.

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Section: Resultsmentioning

confidence: 98%

“…e schematic of experimental setting up can be referred to a previous study [27]. In brief, a commercial Ti:sapphire chirped-pulse amplification laser system (Spectra Physics) was used to generate a 35 fs horizontally linear polarized laser with a central wavelength of 800 nm.…”

Section: Experimental Processmentioning

confidence: 99%

A Simple Way to Achieve Self-Cleaning Surfaces with Unique Antifouling Property

Yao

Jiang

et al. 2020

Journal of Chemistry

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“…Normally, a commercial Ti:sapphire chirped-pulse amplification laser system [32,33] is adopted to create a femtosecond laser for the fabrication of a micro/nano periodic surface structure; the schematic layout of such an experimental system is shown in Figure 1. The attenuator is used to adjust the laser energy, the quarter or half wave-length plate is used to control the laser polarization, and the electronic shutter is used to control the number of pulses.…”

Section: Machines Equipment and Type Of Lasermentioning

confidence: 99%

“…Micro/nanostructures are always prepared on the surface of a structural material with suitable processing parameters [39][40][41][42][43]. Through special designs and processes, micro/nanoripple structures also are often found together with other structures constituting more complex structural features [32,44,45]. Many factors affect the micro/nano surface structure, mainly including the physical and chemical properties of the material itself; the laser physical parameters related to the femtosecond laser system, such as the laser's wavelength, pulse width, repetition frequency, fluence, and polarization direction; and the machining parameters, such as the processing environment, scanning speed, radiation direction, and focus position.…”

Section: Micro/nanoripple Structurementioning

confidence: 99%

“…When the laser fluence was higher, due to the characteristics of the Gaussian distribution of the femtosecond laser energy, an LSFL Micro/nanostructures are always prepared on the surface of a structural material with suitable processing parameters [39][40][41][42][43]. Through special designs and processes, micro/nanoripple structures also are often found together with other structures constituting more complex structural features [32,44,45].…”

Section: Ablation Threshold and Laser Fluencementioning

confidence: 99%

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Micro/Nano Periodic Surface Structures and Performance of Stainless Steel Machined Using Femtosecond Lasers

Cheng

Zhao

et al. 2022

Micromachines

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The machining of micro/nano periodic surface structures using a femtosecond laser has been an academic frontier and hotspot in recent years. With an ultrahigh laser fluence and an ultrashort pulse duration, femtosecond laser machining shows unique advantages in material processing. It can process almost any material and can greatly improve the processing accuracy with a minimum machining size and heat-affected zone. Meanwhile, it can fabricate a variety of micro/nano periodic surface structures and then change a material’s surface performance dramatically, such as the material’s wetting performance, corrosive properties, friction properties, and optical properties, demonstrating great application potential in defense, medical, high-end manufacturing, and many other fields. In recent years, the research is gradually deepening from the basic theory to optimization design, intelligent control, and application technology. Nowadays, while focusing on metal structure materials, especially on stainless steel, research institutions in the field of micro and nano manufacturing have conducted systematic and in-depth experimental research using different experimental environments and laser-processing parameters. They have prepared various surface structures with different morphologies and periods with sound performance, and are one step closer to many civilian engineering applications. This paper reviews the study of micro/nano periodic surface structures and the performance of stainless steel machined using a femtosecond laser, obtains the general evolution law of surface structure and performance with the femtosecond laser parameters, points out several key technical challenges for future study, and provides a useful reference for the engineering research and application of femtosecond laser micro/nano processing technology.

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Effects of pulse durations and environments on femtosecond laser ablation of stainless steel

Ding

Yao

et al. 2018

Appl. Phys. A

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The influence of femtosecond laser repetition rates and pulse numbers on the formation of micro/nano structures on stainless steel

Cited by 21 publications

References 17 publications

A Simple Way to Achieve Self-Cleaning Surfaces with Unique Antifouling Property

A Simple Way to Achieve Self-Cleaning Surfaces with Unique Antifouling Property

Micro/Nano Periodic Surface Structures and Performance of Stainless Steel Machined Using Femtosecond Lasers

Effects of pulse durations and environments on femtosecond laser ablation of stainless steel

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