Dynamics of Crater Evolution During Laser Treatment of Materials
- 15 Downloads
Acoustic emission of the destruction zone formed upon exposure of the metal surface to pulsed laser radiation is considered. A dependence of the waveform and spectrum of acoustic vibrations on the parameters of the irradiated material and a law of increase in the crater depth are determined. It is revealed that for the copper sample surface irradiated by the laser pulse with duration of ~20 μs, the time of growth of the destruction zone is approximately 40 μs, which is in good agreement with the time of existence of plasma formation at the surface of the target treated by laser plasma (~50 μs).
Keywordslaser radiation material destruction crater diagnostics
Unable to display preview. Download preview PDF.
- 1.A. Yu. Ivanov, Acoustic Diagnostics of the Process of Laser Treatment of Materials [in Russian], Publishing House of Grodno State University, Grodno (2007).Google Scholar
- 3.S. I. Pugachev, ed., Piezoceramic Transducers: A Handbook [in Russian], Sudostroenie, Leningrad (1984).Google Scholar
- 4.È. A. Simson and A. A. Taranukha, Akust. Zh., 39, No. 5, 896–903 (1993).Google Scholar
- 5.E. S. Voronel’ and L. P. Kiryushin, Izv. Sib. Otd. Ross. Akad. Nauk, Ser. Tekh. Nauk, No. 2, 75–79 (1991).Google Scholar
- 6.V. I. Nedolugov, in: Physical Methods of Research of Transparent Inhomogeneities [in Russian], F. E. Dzerzhinsky House of Scientific and Technical Propaganda, Moscow (1990), pp. 31–32.Google Scholar
- 7.C. West, Holographic Interferometry [Russian translation], Mir, Moscow (1982).Google Scholar
- 8.Yu. I. Ostrovskii, M. M. Butusov, and G. V. Ostrovskaya, Holographic Interferometry [in Russian], Nauka, Moscow (1977).Google Scholar
- 9.L. D. Landau and E. M. Lifshits, Elasticity Theory [in Russian], Nauka, Moscow (1987).Google Scholar