Ablative Laser Processing of Metals and Dielectrics in an Electrostatic Field

Кочуев, Д. А.; Raznoschikov, A. S.; Chkalov, R. V.

doi:10.1088/1757-899x/969/1/012034

Cited by 7 publications

(5 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As can be seen from the image, when processing in an electrostatic field, there are no defects associated with the deposition of ablated particles along the trajectory of exposure to laser radiation. The use of electrostatic filters to collect ablated particles from gas streams is an effective solution [20]. The only inconvenience is the need for periodic cleaning of the filter plates, since with prolonged deposition of micro-and nanoparticles on the electrode surfaces, significant buildups can form, leading to uneven field strength and, as a consequence, the formation of an electric arc.…”

Section: Discussionmentioning

confidence: 99%

Collection of Laser Ablation Products by Means of an Electrostatic Field

Chkalov

Chkalova

2021

DDF

View full text Add to dashboard Cite

The work is devoted to the problem of controlled laser micromachining of materials surface layers. The problem of ablation products reverse deposition near the laser processing region is considered. Laser ablation products, in addition to direct interaction with laser radiation, significantly increase lifetime and temperature of laser-induced plasma torch, which leads to decrease in energy entering processing area, as a result of which not removal, but heating of coating material occurs. Ablated particles can be deposited on the processed samples surface, which causes distortions in recorded structure spatial geometry. The possibility of using an electrostatic filtration system is considered as a method for protecting treated surface.

show abstract

Section: Discussionmentioning

confidence: 99%

Collection of Laser Ablation Products by Means of an Electrostatic Field

Chkalov

Chkalova

2021

DDF

View full text Add to dashboard Cite

show abstract

“…The operating principle of this approach is described in Ref. [36] for the case of solving the problem of synthesizing highly dispersed spherical powder granules by the laser ablation method. To improve the quality of the surface of the synthesized particles and to increase the process productivity, the system of ablation product collection based on an electrostatic precipitator was used directly in the area of laser beam propagation.…”

Section: Materials and Experimental Techniquementioning

confidence: 99%

Processes of ablation and structures growth under the action of femtosecond laser pulses on the gallium surface in an ammonia medium

et al. 2023

View full text Add to dashboard Cite

In this paper, we present the results of processing metallic gallium in an ammonia vapor medium at 2 bar pressure by femtosecond laser pulses. The influence of the ammonia concentration and the mode of laser beam scanning on the result of laser action is considered. It has been established that an increase in the concentration of ammonia vapor and a change in the scanning regime lead to a radical change in the laser ablation process. A decrease in the scanning speed leads to the cessation of the ablation process and the development of the nitridation process of the gallium surface, accompanied by the formation of columnar structures up to 12 mm long and about 100 μm in diameter. The synthesized nanoparticles and structures were studied using scanning electron microscopy, Raman spectroscopy, and X-ray analysis. Keywords: laser ablation, gallium nitride, gallium nitride nanoparticles manufacturing, ablative synthesis of gallium nitride nanoparticles.

show abstract

“…The products of ablation under the action of an electric field formed between the electrodes leave the treatment area and settle on the substrate surface (Fig. 3) [22].…”

Section: Laser Deposition Setupmentioning

confidence: 99%

Pulsed Laser Deposition of Thin-Film Coatings in an Electrostatic Field

Chkalov

Chkalova

2021

DDF

View full text Add to dashboard Cite

The work is devoted to the problem of thin metal coatings deposition on dielectric substrates using the method of target material pulsed laser evaporation. The main advantage of laser ablation over other methods of coating deposition is the possibility of using practically any material as a target, while the resulting films are characterized by a high correspondence of the phase and chemical composition to the target material. The possibility of using an electrostatic field to improve the efficiency of coating deposition process is considered. Under the action of an electric field formed between the plates of high-voltage electrodes, the ablation products leave the treatment area and settle on the substrate surface. Examples of coatings deposited under various ablation conditions are shown.

show abstract

Ablative Laser Processing of Metals and Dielectrics in an Electrostatic Field

Cited by 7 publications

References 9 publications

Collection of Laser Ablation Products by Means of an Electrostatic Field

Collection of Laser Ablation Products by Means of an Electrostatic Field

Processes of ablation and structures growth under the action of femtosecond laser pulses on the gallium surface in an ammonia medium

Pulsed Laser Deposition of Thin-Film Coatings in an Electrostatic Field

Contact Info

Product

Resources

About