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Helen Papadaki, Evaggelos Kaselouris, Makis Bakarezos, Michael Tatarakis, Nektarios A. Papadogiannis and Vasilis Dimitriou
The dynamic behavior of solid Si targets irradiated by nanosecond laser pulses is computationally studied with transient, therm?mechanical three-dimensional finite element method simulations. The dynamic phase changes of the target and the generation and...
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Hao Liu, Jifei Ye, Mingyu Li and Heyan Gao
For laser ablation micropropulsion technology with metal as the target to increase the total impulse, the effective utilization and supply of a working medium is a crucial aspect. In this research, the ablation characteristics and propulsion performance ...
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Chenghao Yu, Jifei Ye, Hao Chang, Weijing Zhou, Xiao Han, Mingyu Li and Heyan Gao
The ejection of the plasma plume produced by laser ablation is an important process for inducing mechanical effects. Therefore, in this paper, the characteristics of the plasma plume are investigated in order to analyze the impulse coupling mechanism wit...
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Giedrius Abromavicius, Martynas Skapas and Remigijus Ju?kenas
Co2+:MgAl2O4 crystals are successfully used as passive Q-switches within the cavity of erbium glass lasers. Their limited resistance to laser radiation might also put constraints on the generated output peak power. Usually, polishing of optical substrate...
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Victor V. Kuzenov, Sergei V. Ryzhkov and Aleksey Yu. Varaksin
This paper provides an overview of modern research on magnetoplasma methods of influencing gas-dynamic and plasma flows. The main physical mechanisms that control the interaction of plasma discharges with gaseous moving media are indicated. The ways of o...
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María del Carmen Marco de Lucas, Franck Torrent, Gianni-Paolo Pillon, Pascal Berger and Luc Lavisse
Surface laser treatment (SLT) using nanosecond IR lasers has been shown to improve the tribological behaviour of titanium. Here, we studied the fretting wear of SLT-functionalized pure titanium in a mixture of reactive gases O2" role="presentation" style...
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Suorong Zhang, Jian Li, Bin He, Jian Yuan and Guoyan Chen
The properties of high strength, wear resistance, and high brittleness, make silicon carbide (SiC) materials difficult to process by traditional processing methods. The non-traditional processing method of laser processing has emerged as a viable means o...
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Katarzyna M. Mroczkowska, Paulina Dzienny, Aleksander Budnicki and Arkadiusz J. Antonczak
This article is aimed to study the effect of laser treatment of AISI 304 stainless steel on the corrosion resistance and chemical composition of the surface layer. The samples were irradiated using two quite different laser sources: IPG Yb:glass fibre la...
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Ying Cai, Dajie Huang, He Cheng, Gang Xia and Wei Fan
Compared with the current mature point scanning metal additive manufacturing technology, the surface exposure technology by laser additive manufacturing can accelerate the construction speed, and the short pulse laser is expected to improve the resolutio...
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Jiantao Zhao, Zhenge Zhu, Yacheng Xu, Xueyong Song, Yufan Wang, Hao Peng, Ying Wang, Jinrong Zuo, Xuedao Shu and Anmin Yin
Multi-pulse nanosecond laser ablation of Ti?6Al?4V is a complex process. In this study, the effect of substrate temperature on the nanosecond laser ablation of Ti?6Al?4V was investigated. Morphology, diameter and depth of ablation craters were observed; ...
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