Surface melting of copper by ultrashort laser pulses

J. Vincenc Oboňa; V. Ocelík; J.Th.M De Hosson; J.Z.P. Skolski; V.S. Mitko; G.R.B.E. Römer; A.J. Huis in 't Veld

doi:10.2495/SECM110151

Surface melting of copper by ultrashort laser pulses

J. Vincenc Oboňa, V. Ocelík, J.Th.M De Hosson, J.Z.P. Skolski, V.S. Mitko, G.R.B.E. Römer, A.J. Huis in 't Veld

Faculty of Engineering Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

1 Citation (Scopus)

225 Downloads (Pure)

Abstract

The main advantage of ultrashort laser pulses in manufacturing technology is their very high removal rate of material and high quality of microstructures with the smallest dimensions at 1 μm level. The accuracy is mainly due to almost absence of thermal diffusion into bulk material. In this paper we report the investigation on polycrystalline Cu sample surface treated by 6.7 ps laser pulses with 1030 nm laser light wavelength. Scanning electron microscopy micrographs reveal the presence of jet-like structures with spherical drop-like endings, solidified spheres and many bubble bursts at even lower fluence than the threshold value for the ablation is. Within the molten material the jet-like features are due to an explosion of bubbles originated in solid-liquid-vapor transitions. In the case of below-threshold irradiation the same objects can be seen along surface scratches, dot contaminations etc., which indicate an increase of the laser light absorption on these inhomogeneities

Original language	English
Title of host publication	Surface Effects and Contact Mechanics X
Subtitle of host publication	Computational Methods and Experiments
Editors	J.T.M De Hosson, C.A Brebbia
Place of Publication	Southampton
Publisher	WIT Press
Pages	171-179
ISBN (Electronic)	978-1-84564-531-1
ISBN (Print)	978-1-84564-530-4
DOIs	https://doi.org/10.2495/SECM110151
Publication status	Published - 2011
Event	10th International Conference on Surface Effects and Contact Mechanics X, 2011 - University of Malta, Valletta, Malta, Spain Duration: 21 Sept 2011 → 23 Sept 2011 Conference number: 10 http://www.wessex.ac.uk/conferences/2011/contact-and-surface-2011

Publication series

Name	WIT Transactions on Engineering Sciences
Publisher	WIT Press
Volume	71
ISSN (Print)	1746-4471

Conference

Conference	10th International Conference on Surface Effects and Contact Mechanics X, 2011
Abbreviated title	Contact and Surface
Country/Territory	Spain
City	Valletta, Malta
Period	21/09/11 → 23/09/11
Internet address	http://www.wessex.ac.uk/conferences/2011/contact-and-surface-2011

Keywords

Electron microscopy
Bubbles bursts
Laser pulses
Thin membranes
Jets
Scanning Electron Microscopy (SEM)
Copper
Bubbles

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.2495/SECM110151

Obona2011surfaceAccepted author version, 2.23 MB
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Cite this

Vincenc Oboňa, J., Ocelík, V., De Hosson, J. T. M., Skolski, J. Z. P., Mitko, V. S., Römer, G. R. B. E., & Huis in 't Veld, A. J. (2011). Surface melting of copper by ultrashort laser pulses. In J. T. M. De Hosson, & C. A. Brebbia (Eds.), Surface Effects and Contact Mechanics X: Computational Methods and Experiments (pp. 171-179). (WIT Transactions on Engineering Sciences; Vol. 71). WIT Press. https://doi.org/10.2495/SECM110151

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title = "Surface melting of copper by ultrashort laser pulses",

abstract = "The main advantage of ultrashort laser pulses in manufacturing technology is their very high removal rate of material and high quality of microstructures with the smallest dimensions at 1 μm level. The accuracy is mainly due to almost absence of thermal diffusion into bulk material. In this paper we report the investigation on polycrystalline Cu sample surface treated by 6.7 ps laser pulses with 1030 nm laser light wavelength. Scanning electron microscopy micrographs reveal the presence of jet-like structures with spherical drop-like endings, solidified spheres and many bubble bursts at even lower fluence than the threshold value for the ablation is. Within the molten material the jet-like features are due to an explosion of bubbles originated in solid-liquid-vapor transitions. In the case of below-threshold irradiation the same objects can be seen along surface scratches, dot contaminations etc., which indicate an increase of the laser light absorption on these inhomogeneities",

keywords = "Electron microscopy, Bubbles bursts, Laser pulses, Thin membranes, Jets, Scanning Electron Microscopy (SEM), Copper, Bubbles",

author = "{Vincenc Obo{\v n}a}, J. and V. Ocel{\'i}k and {De Hosson}, J.Th.M and J.Z.P. Skolski and V.S. Mitko and G.R.B.E. R{\"o}mer and {Huis in 't Veld}, A.J.",

year = "2011",

doi = "10.2495/SECM110151",

language = "English",

isbn = "978-1-84564-530-4",

series = "WIT Transactions on Engineering Sciences",

publisher = "WIT Press",

pages = "171--179",

editor = "{De Hosson}, J.T.M and C.A Brebbia",

booktitle = "Surface Effects and Contact Mechanics X",

address = "United Kingdom",

note = "10th International Conference on Surface Effects and Contact Mechanics X, 2011, Contact and Surface ; Conference date: 21-09-2011 Through 23-09-2011",

url = "http://www.wessex.ac.uk/conferences/2011/contact-and-surface-2011",

}

Vincenc Oboňa, J, Ocelík, V, De Hosson, JTM, Skolski, JZP, Mitko, VS, Römer, GRBE & Huis in 't Veld, AJ 2011, Surface melting of copper by ultrashort laser pulses. in JTM De Hosson & CA Brebbia (eds), Surface Effects and Contact Mechanics X: Computational Methods and Experiments. WIT Transactions on Engineering Sciences, vol. 71, WIT Press, Southampton, pp. 171-179, 10th International Conference on Surface Effects and Contact Mechanics X, 2011, Valletta, Malta, Spain, 21/09/11. https://doi.org/10.2495/SECM110151

Surface melting of copper by ultrashort laser pulses. / Vincenc Oboňa, J.; Ocelík, V.; De Hosson, J.Th.M et al.
Surface Effects and Contact Mechanics X: Computational Methods and Experiments. ed. / J.T.M De Hosson; C.A Brebbia. Southampton: WIT Press, 2011. p. 171-179 (WIT Transactions on Engineering Sciences; Vol. 71).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Surface melting of copper by ultrashort laser pulses

AU - Vincenc Oboňa, J.

AU - Ocelík, V.

AU - De Hosson, J.Th.M

AU - Skolski, J.Z.P.

AU - Mitko, V.S.

AU - Römer, G.R.B.E.

AU - Huis in 't Veld, A.J.

N1 - Conference code: 10

PY - 2011

Y1 - 2011

N2 - The main advantage of ultrashort laser pulses in manufacturing technology is their very high removal rate of material and high quality of microstructures with the smallest dimensions at 1 μm level. The accuracy is mainly due to almost absence of thermal diffusion into bulk material. In this paper we report the investigation on polycrystalline Cu sample surface treated by 6.7 ps laser pulses with 1030 nm laser light wavelength. Scanning electron microscopy micrographs reveal the presence of jet-like structures with spherical drop-like endings, solidified spheres and many bubble bursts at even lower fluence than the threshold value for the ablation is. Within the molten material the jet-like features are due to an explosion of bubbles originated in solid-liquid-vapor transitions. In the case of below-threshold irradiation the same objects can be seen along surface scratches, dot contaminations etc., which indicate an increase of the laser light absorption on these inhomogeneities

AB - The main advantage of ultrashort laser pulses in manufacturing technology is their very high removal rate of material and high quality of microstructures with the smallest dimensions at 1 μm level. The accuracy is mainly due to almost absence of thermal diffusion into bulk material. In this paper we report the investigation on polycrystalline Cu sample surface treated by 6.7 ps laser pulses with 1030 nm laser light wavelength. Scanning electron microscopy micrographs reveal the presence of jet-like structures with spherical drop-like endings, solidified spheres and many bubble bursts at even lower fluence than the threshold value for the ablation is. Within the molten material the jet-like features are due to an explosion of bubbles originated in solid-liquid-vapor transitions. In the case of below-threshold irradiation the same objects can be seen along surface scratches, dot contaminations etc., which indicate an increase of the laser light absorption on these inhomogeneities

KW - Electron microscopy

KW - Bubbles bursts

KW - Laser pulses

KW - Thin membranes

KW - Jets

KW - Scanning Electron Microscopy (SEM)

KW - Copper

KW - Bubbles

U2 - 10.2495/SECM110151

DO - 10.2495/SECM110151

M3 - Conference contribution

SN - 978-1-84564-530-4

T3 - WIT Transactions on Engineering Sciences

SP - 171

EP - 179

BT - Surface Effects and Contact Mechanics X

A2 - De Hosson, J.T.M

A2 - Brebbia, C.A

PB - WIT Press

CY - Southampton

T2 - 10th International Conference on Surface Effects and Contact Mechanics X, 2011

Y2 - 21 September 2011 through 23 September 2011

ER -

Surface melting of copper by ultrashort laser pulses

Abstract

Publication series

Conference

Keywords

UN SDGs

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