Laser Patterning of Metallic Glass

Huang, Hao; Yan, Jiwang

doi:10.1007/978-981-10-6588-0_15-1

Cited by 2 publications

(5 citation statements)

References 60 publications

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Section: Resultsmentioning

confidence: 99%

“…Surface cracking in Figure 2 c–e can also be related to the presence of thermal stresses [ 29 ]. Multiple-pulse-laser irradiation causes accretion in thermal stresses and in turn weakens the atomic bonds and generates cracks and cavities on the irradiated target surface [ 29 ]. For Cd exposed to maximum number of pulses of 2000, pronounced cracking due to increase in number of pulses is observed, while Figure 2 f shows the full view of ablated spot for maximum number of pulses, and inset of figure shows the magnified view from boundary of ablated zone.…”

Section: Resultsmentioning

confidence: 99%

“…Some traces of micro-conical structures and generation of LIPSS inside these cavities is also observed. Generation of LIPSS on a laser-ablated surface can be related to the interaction of laser radiation with the surface-scattered waves [ 29 , 51 ]. The presence or excitation of Surface Plasmon Polaritons (SPPs) introduces periodic improvement in the local field on surface layers.…”

Section: Resultsmentioning

confidence: 99%

“…The presence of rounded ripples at boundary area of irradiated spot in propanol ambient can be related to the bubble formation and expansion process [ 29 ]. Bubbles can generate LIPSS using different mechanisms as revealed in Figure 5 a,c.…”

Section: Resultsmentioning

confidence: 99%

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Nanosecond Laser Induced Surface Structuring of Cadmium after Ablation in Air and Propanol Ambient

Umm-i-Kalsoom

Ali

Bashir

et al. 2022

IJMS

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In the present study KrF Excimer laser has been employed to irradiate the Cadmium (Cd) targets for various number of laser pulses of 500, 1000, 1500 and 2000, at constant fluence of 3.6 J cm−2. Scanning Electron Microscopy (SEM) analysis was utilized to reveal the formation of laser induced nano/micro structures on the irradiated target (Cd) surfaces. SEM results show the generation of cavities, cracks, micro/nano wires/rods, wrinkles along with re-deposited particles during irradiation in air, whereas subsurface boiling, pores, cavities and Laser Induced Periodic Surface Structures (LIPSS) on the inner walls of cavities are revealed at the central ablated area after irradiation in propanol. The ablated volume and depth of ablated region on irradiated Cd targets are evaluated for various number of pulses and is higher in air as compared to propanol ambient. Fast Fourier Transform Infrared spectroscopy (FTIR), Energy Dispersive X-ray Spectroscopy (EDS) and X-ray Diffraction (XRD) analyses show the presence of oxides and hydro-oxides of Cd after irradiation in propanol, whereas the existence of oxides is observed after irradiation in air ambient. Nano-hardness tester was used to investigate mechanical modifications of ablated Cd. It reveals an increase in hardness after irradiation which is more pronounced in propanol as compared to air.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Nanosecond Laser Induced Surface Structuring of Cadmium after Ablation in Air and Propanol Ambient

Umm-i-Kalsoom

Ali

Bashir

et al. 2022

IJMS

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“…Huang and Yan (2018) [ 124 ] reviewed the patterning process of BMG using laser surface processing. They reported various laser surface structuring mechanisms for BMG and their applications in functional surface modification.…”

Section: Non-conventional Machining Of Bmgmentioning

confidence: 99%

Multi-Scale Traditional and Non-Traditional Machining of Bulk Metallic Glasses (BMGs)—Review of Challenges, Recent Advances, and Future Directions

Jahan,

Niraula,

Nafi

et al. 2024

Micromachines

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Bulk metallic glasses (BMGs) are growing in popularity prominently due to their potential in micro-electromechanical systems (MEMSs) and aerospace applications. BMGs have unique mechanical properties, i.e., high strength, hardness, modulus of elasticity, and wear resistance, due to their disordered atomic structure. Due to their unique mechanical properties and amorphous structures, machining of BMGs remains a challenge. This paper aims to carry out a detailed literature review on various aspects of the machining of bulk metallic glasses using both conventional and non-conventional processes, including experimental approaches, modeling, statistical findings, challenges, and guidelines for machining this difficult-to-machine material. Conventional machining processes were found to be challenging for machining bulk metallic glasses due to their high hardness, brittleness, and tendency to convert their amorphous structure into a crystalline structure, especially at the machined surface and sub-surface. Although their high electrical conductivity makes them suitable for machining by non-conventional processes, they impose new challenges such as heat-affected zones and crystallization. Therefore, the successful machining of BMGs requires more in-depth analysis of cutting forces, tool wear, burr formation, surface finish, recast layers or heat-affected zones, crystallization, and mechanical property changes among different varieties of BMGs. This review paper provides guidelines emerging from in-depth analysis of previous studies, as well as offering directions for future research in the machining of BMGs.

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Laser Patterning of Metallic Glass

Cited by 2 publications

References 60 publications

Nanosecond Laser Induced Surface Structuring of Cadmium after Ablation in Air and Propanol Ambient

Nanosecond Laser Induced Surface Structuring of Cadmium after Ablation in Air and Propanol Ambient

Multi-Scale Traditional and Non-Traditional Machining of Bulk Metallic Glasses (BMGs)—Review of Challenges, Recent Advances, and Future Directions

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