Bubble formation induced by nanosecond laser ablation in water and its diagnosis by optical transmission technique

Mahdieh, Mohammad Hossein; Jafarabadi, Marzieh Akbari

doi:10.1007/s00339-013-8212-3

Cited by 9 publications

(7 citation statements)

References 24 publications

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“…The target material is melted, and its structure is altered during laser ablation in air. Material removal from the surface is related to the type of laser pulse parameters, as well as the material's thermal and optical properties [49, [85][86][87]. The material ejected from the target surface forms a plasma plume, which expands and exits the target surface, producing a pressure wave that travels through the material's surface.…”

Section: Laser Surface Texture Processing Mediummentioning

confidence: 99%

“…The ejected material can redeposit on the surface, creating burrs and reducing the ablation efficiency. The hardness of these burrs or oxides is often higher than the original material's due to the oxidation effect, and elimination of these burrs is crucial for an optimum tribological behavior [41,85].…”

Section: Laser Surface Texture Processing Mediummentioning

confidence: 99%

“…In order to overcome the drawbacks of laser ablation in the air, a solution was developed that included underwater ablation or water-assisted subtractive machining processes using the liquid layer, water droplet, and moving water approaches, as shown in Figure 5 [ [85][86][87]89,90,94,96]. Underwater processing is superior to in-air processing (Figure 6a) and helps to avoid the re-deposition of debris due to the flowing effect of water [91].…”

Section: Pulse Laser Ablation Processing With Liquidsmentioning

confidence: 99%

“…Undesirable effects, such as splash and debris residue on the kerf, emerged during air processing (Figure 7a), while, in water, a smooth surface of the microgrooves was obtained (Figure 7c), with essentially no deposited debris or recast layer. This is due to the optical breakdown that happens in water, resulting in vaporization, expansion, plasma shock wave, and gas bubbles that efficiently take away the accumulated debris [85,87,92,96]. However, when a liquid, such as oil, is vaporized, the resultant shockwave compresses the ablated molten metal targeted by the pulse, and the evaporation of the oil creates the two aspects of gas (bubbles) and liquid, which can result in an unbalanced power intensity of the laser spot and a lower processing efficiency [88].…”

Section: Pulse Laser Ablation Processing With Liquidsmentioning

confidence: 99%

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Design Methodology and Application of Surface Texture: A Review

Kouediatouka

Liu

et al. 2022

Coatings

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Surface texture is regarded as a promising solution for enhancing the tribological features of industrial materials due to its outstanding benefits, such as minimization of the contact area, enhancement of the load bearing capacity, storage of the lubricant, and management of the transition between lubrication regimes. Surface texture can be processed under either liquid or gas conditions. As compared to laser ablation in air, employing liquids or other gases as ablation media provides high accuracy and uniformity by limiting the heat-affected zone (HAZ) and other undesired defects to a large extent, as well as high crater structural features. In addition, the synergistic use of different liquid, solid, and additive lubricants with surface roughness recently demonstrated excellent performance. Therefore, surface texture helps to improve the tribological characteristics of a material. This paper reviews the design methodologies and applications of surface texture, emphasizing the proper selection of the appropriate laser parameters and ambient conditions for the best texture quality and functionality. Recent texture geometric design features to improve the film thickness and the self-lubricating system are presented. The ablation environment is explored using various media. The interaction between the lubricants’ types and surface textures is explored based on the operating conditions. Furthermore, surface texture applications using superhydrophobic surfaces, anti-drag, and vibration and noise friction are discussed. We hope that this review plays an enlightening role in follow-up research on laser surface texture.

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Section: Laser Surface Texture Processing Mediummentioning

confidence: 99%

Section: Laser Surface Texture Processing Mediummentioning

confidence: 99%

Section: Pulse Laser Ablation Processing With Liquidsmentioning

confidence: 99%

Section: Pulse Laser Ablation Processing With Liquidsmentioning

confidence: 99%

See 2 more Smart Citations

Design Methodology and Application of Surface Texture: A Review

Kouediatouka

Liu

et al. 2022

Coatings

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“…Other approaches have also been used, such as Schlieren imaging [29], X-ray radiography [30], high-speed laser stroboscopic videography [31], pressure transducer or piezoelectric hydrophone [9,32], beam-deflection probe [33][34][35], and optical transmission techniques [36][37][38]. In the case of shadowgraph imaging, multiple events are required to capture the whole bubble dynamics.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the overall temporal behavior of the bubbles produced by short- and long-pulse nanosecond laser ablations in water using a laser-beam-transmission probe

et al. 2016

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We investigate the overall temporal behavior of the bubbles produced by 20-ns-and 100-ns-pulse-duration laser ablations in water using a laser-beam-transmission probe (LBTP). This technique gives the transmission signal attributed to the whole bubble dynamics, including the secondary oscillations, with a single laser shot. Comparing the signals obtained for both pulse durations, the periods of the first oscillation of the bubble are almost the same. Nevertheless, the periods of the subsequent oscillations are significantly different depending on the pulse duration. Such results are obtained by virtue of the LBTP technique.

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