Laser machining of transparent brittle materials: from machining strategies to applications

Xie, Xiaozhu; Zhou, Caixia; Wei, Xin; Hu, Wei; Ren, Qinglei

doi:10.29026/oea.2019.180017

Cited by 72 publications

(17 citation statements)

References 73 publications

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“…Laser machining is a one-step direct fabrication method that makes it possible to produce features on a micro and/or nano scale on a broad range of substrates such as metals [ 54 , 95 ], polymers [ 96 , 97 ] and glasses [ 98 ]. Laser-based techniques have been demonstrated to be an outstanding method for obtaining surfaces with controllable superhydrophobic and anti-icing properties [ 99 ] without the environmental impact of chemical methods, and with high flexibility, without the need for expensive masks or molds.…”

Section: Fabrication Of Superhydrophobic Surfaces With Anti-icing mentioning

confidence: 99%

Laser Fabrication of Anti-Icing Surfaces: A Review

2020

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In numerous fields such as aerospace, the environment, and energy supply, ice generation and accretion represent a severe issue. For this reason, numerous methods have been developed for ice formation to be delayed and/or to inhibit ice adhesion to the substrates. Among them, laser micro/nanostructuring of surfaces aiming to obtain superhydrophobic behavior has been taken as a starting point for engineering substrates with anti-icing properties. In this review article, the key concept of surface wettability and its relationship with anti-icing is discussed. Furthermore, a comprehensive overview of the laser strategies to obtain superhydrophobic surfaces with anti-icing behavior is provided, from direct laser writing (DLW) to laser-induced periodic surface structuring (LIPSS), and direct laser interference patterning (DLIP). Micro-/nano-texturing of several materials is reviewed, from aluminum alloys to polymeric substrates.

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Section: Fabrication Of Superhydrophobic Surfaces With Anti-icing mentioning

confidence: 99%

Laser Fabrication of Anti-Icing Surfaces: A Review

2020

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“…Femtosecond laser ablation (fs-LA) is a versatile technique that enables the production of a large variety of surface structures [1][2][3][4][5], and the structures' diversity can be further enriched in combination with other techniques [6,7]. Laser-induced periodic surface structures (LIPSSs) [1,[8][9][10][11][12][13] are the most typical nanoscale structures that are uniquely achievable by fs-LA, whose periods can be manipulated from tens of nm to hundreds of nm by changing the laser properties [14], processing parameters [8] and ablation environments [15].…”

Section: Introductionmentioning

confidence: 99%

Multiscale Hierarchical Micro/Nanostructures Created by Femtosecond Laser Ablation in Liquids for Polarization-Dependent Broadband Antireflection

et al. 2020

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In this work, we present the possibility of producing multiscale hierarchical micro/nanostructures by the femtosecond laser ablation of transition metals (i.e., Ta and W) in water and investigate their polarization-dependent reflectance. The hierarchical micro/nanostructures are composed of microscale-grooved, mountain-like and pit-rich structures decorated with hybrid laser-induced periodic surface structures (LIPSSs). The hybrid LIPSSs consist of low/high and ultrahigh spatial frequency LIPSSs (LSFLs/HSFLs and UHSFLs). LSFLs/HSFLs of 400–600 nm in a period are typically oriented perpendicular to the direction of the laser polarization, while UHSFLs (widths: 10–20 nm and periods: 30–50 nm) are oriented perpendicular to the curvatures of LSFLs/HSFLs. On the microstructures with height gradients, the orientations of LSFLs/HSFLs are misaligned by 18°. On the ablated W metasurface, two kinds of UHSFLs are observed. UHSFLs become parallel nanowires in the deep troughs of LSFLs/HSFLs but result in being very chaotic in shallow LSFLs, turning into polygonal nanonetworks. In contrast, chaotic USFLs are not found on the ablated Ta metasurfaces. With the help of Fourier transform infrared spectroscopy, it is found that microgrooves show an obvious polarization-dependent reflectance at wavelengths of 15 and 17.5 μm associated with the direction of the groove, and the integration of microstructures with LSFs/HSFLs/UHSFLs is thus beneficial for enhancing the light absorbance and light trapping in the near-to-mid-infrared (NIR-MIR) range.

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“…For higher machining efficiency, better processing accuracy and surface morphology, nontraditional technologies have proposed for glass in recent years [ 4 ], and the typical methods are laser machining [ 5 , 6 , 7 ] and electrochemical discharge machining (ECDM) [ 8 , 9 , 10 , 11 , 12 ], both of which are noncontact methods and removing materials in a stress-less manner. Therefore, noncontact methods can avoid the stress damage, and reduce the chipping and cracks [ 13 ] significantly improving the processing accuracy and surface quality.…”

Section: Introductionmentioning

confidence: 99%

An Investigation into Laser-Assisted Electrochemical Discharge Machining of Transparent Insulating Hard-Brittle Material

et al. 2020

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Electrochemical discharge machining (ECDM) and laser machining are emerging nontraditional machining technologies suitable for micro-processing of insulating and hard-brittle materials typified by glass. However, poor machinability of glass is a major constraint, which remains to be solved. For the micro-grooves processed by ECDM, the bottom surface is usually uneven and associated with protrusion structures, while the edges are not straight with obvious wave-shaped heat-affected zones (HAZs) and over-cutting. Besides, the cross section of the micro-grooves processed by the laser is V-shape with a large taper. To solve these problems, this study proposed the laser-assisted ECDM for glass micro-grooving, which combines ECDM and laser machining. This study compared morphological features of the single processing method and the hybrid processing method. The results show that ECDM caused cylindrical protrusions at the bottom of the microgrooves. After processing these micro-grooves by laser, the cylindrical protrusions were removed. However, the edge quality of the microgrooves was still poor. Therefore, we used the laser to get microgrooves first, so we got micro-grooves with better edge quality. Then we use ECDM to improve the taper of microgrooves and the cross-sectional shape of the microgrooves transformed from a V-shape to a U-shape.

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Laser machining of transparent brittle materials: from machining strategies to applications

Cited by 72 publications

References 73 publications

Laser Fabrication of Anti-Icing Surfaces: A Review

Laser Fabrication of Anti-Icing Surfaces: A Review

Multiscale Hierarchical Micro/Nanostructures Created by Femtosecond Laser Ablation in Liquids for Polarization-Dependent Broadband Antireflection

An Investigation into Laser-Assisted Electrochemical Discharge Machining of Transparent Insulating Hard-Brittle Material

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