Abstract
The ablation behavior of copper alloy and aluminium irradiated in air by 1.06 μm, 10 ns pulsed laser with power density of 6.4×109W/cm2 was studied using scanning electron microscopy (SEM), MCS-RBS and X-ray microanalysis. Evidence of bulk vaporization via bubble formation was observed for the copper alloy under the laser irradiation. Silver-enrichment microregions were found in the ablation crater created by the laser shots on the copper alloy sample. Material removal rates of these materials were determined by crater shape-profile measurement. Using self-similar solutions of the gas-dynamic equations, gas-dynamic parameters of the vaporization waves are obtained. These parameters are used to calculate material removal rates and impulse coupling coefficients of these materials under the pulsed laser irradiation. The calculated mass removal rates and the coupling coefficients are compared with the corresponding experimentally determined values. The surface kinetic energy of the irradiated area on the Al sample is estimated. Possible mechanisms for laser ablation of the materials under study are discussed.
Similar content being viewed by others
References
L.R. Hettche, T.R. Tucker, J.T. Schriempf, R.L. Stegman, S.A. Metz: J. Appl. Phys. 47, 1415 (1976)
E. Stürmer, M. von Allmen: J. Appl. Phys. 49, 5648 (1978)
S. Marcus, J.E. Lowder, D.L. Mooney: J. Appl. Phys. 47, 2966 (1976)
A.N. Pirri, R.G. Root, P.K.S. Wu: AIAA Journal 16, 1296 (1978)
W.E. Maher, R.B. Hall: J. Appl. Phys. 49, 2254 (1978)
D.I. Rosen, J. Mitteldorf, G. Kothandaraman, A.N. Pirri, E.R. Pugh: J. Appl. Phys. 53, 3190 (1982)
D.I. Rosen, D.E. Hastings, G.M. Weyl: J. Appl. Phys. 53, 5882 (1982)
R. Kelly, J.E. Rothenberg: Nucl. Instr. Meth. B 7/8, 755 (1985)
D.M. Follstaedt, S.T. Picraux, P.S. Peercy, W.R. Wampler: Appl. Phys. Lett. 39, 327 (1981)
J.F. Young, J.E. Sipe, J.S. Preston, H.M. van Driel: Appl. Phys. Lett. 41, 261 (1982)
e.g. C. Kittel: Introduction to Solid State Physics, 6th edn. (Wiley, New York 1986) p. 134
R. Kelly, J.J. Cuomo, P.A. Leary, J.E. Rothenberg, B.E. Braren, C.F. Aliotta: Nucl. Instrum. Methods B 9, 329 (1985)
D. Ryter, M. von Allmen: IEEE QE-17, 2015 (1981)
C.T. Lynch: Handbook of Materials Science, Vol. 1 (CRC, Ohio 1974)
A.F. Crawley: Int. Metallurg. Rev. 19, 32 (1974)
O.N. Krokhin: Laser Handbook, Vol. 2, eds. F.T. Arecchi, E.O. Schulz-Dubois (North-Holland, Amsterdam 1972) pp. 1371–1407
A.A. Uglov, A.N. Kokora: Sov. J. Quantum Electron. 7, 671 (1977)
J.E. Lowder: Laser-Surface Impulse Delivery in Vacuum. 3rd AIAA and ASME Joint Thermophysics, Fluids, Plasma and Thermal Transfer Conf. St. Louis, MO, June 7–11, 1985
N. Bloembergen, C.K.N. Patel et al.: Rev. Mod. Phys. 59, Part II, S119 (1987)
R.G. Tomlinson: Appl. Phys. Lett. 18, 149 (1971)
A. Goldsmith, T.E. Waterman, H.J. Hirschorn: Handbook of Thermophysical Properties of Solid Materials, Vol. 1 (Pergamon, Oxford 1961)
M. von Allmen: J. Appl. Phys. 47, 5460 (1976)
A.N. Pirri: Phys. Fluids 16, 1435 (1973)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Xia, Y., Mei, L., Tan, C. et al. Laser ablation of copper and aluminium in air. Appl. Phys. A 52, 425–432 (1991). https://doi.org/10.1007/BF00323654
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00323654