A Model of Ultra-Short Pulsed Laser Ablation of Metal with Considering Plasma Shielding and Non-Fourier Effect

Sheng Tan, Jianjun Wu, Yu Zhang, Moge Wang and Yang Ou
Additional contact information
Sheng Tan: College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China
Jianjun Wu: College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China
Yu Zhang: College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China
Moge Wang: College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China
Yang Ou: College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China

Energies, 2018, vol. 11, issue 11, 1-17

Abstract: In this paper, a non-Fourier heat conduction model of ultra-short pulsed laser ablation of metal is established that takes into account the effect of the heat source, laser heating of the target, the evaporation and phase explosion of target material, the formation and expansion of the plasma plume, and interaction of the plasma plume with the incoming laser. Temperature dependent optical and thermophysical properties are also considered in the model due to the properties of the target will change over a wide range during the ultra-short pulsed laser ablation process. The results show that the plasma shielding has a great influence on the process of ultra-short pulsed laser ablation, especially at higher laser fluence. The non-Fourier effect has a great influence on the temperature characteristics and ablation depth of the target. The ultra-short pulsed laser ablation can effectively reduce the heat affected zone compared to nanosecond pulsed laser ablation. The comparison between the simulation results and the experimental results in the literature shows that the model with the plasma shielding and the non-Fourier effect can simulate the ultra-short pulsed laser ablation process better.

Keywords: ultra-short pulsed laser ablation; plasma shielding; non-Fourier effect; hyperbolic heat conduction equation; phase explosion; temperature-dependent material properties; ablation depth (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/11/11/3163/pdf (application/pdf)
https://www.mdpi.com/1996-1073/11/11/3163/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:11:y:2018:i:11:p:3163-:d:183026

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().