TY - JOUR
T1 - A multiscale study of film thickness dependent femtosecond laser spallation and ablation
AU - Ji, Pengfei
AU - Zhang, Yuwen
AU - Rong, Yiming
AU - Tang, Yong
N1 - Publisher Copyright:
© 2018 International Heat Transfer Conference. All rights reserved.
PY - 2018
Y1 - 2018
N2 - A multiscale studying integrating ab initio quantum mechanics, classical molecular dynamics and two-temperature model, is carried out to study film thickness dependent femtosecond laser spallation and ablation. As an interval of 130.73 , five silver films with increasing thickness from 392.19 to 915. 11 are simulated. Absorbed laser fluences of 0.1 / and 0.3 / are chosen to observe the laser spallation and ablation. The simulation results show that film thickness has close correlation with the Kelvin degree of heating of the laser irradiated silver films, which further affects femtosecond laser spallation and ablation. Suggestions for precise micromachining are proposed in this paper.
AB - A multiscale studying integrating ab initio quantum mechanics, classical molecular dynamics and two-temperature model, is carried out to study film thickness dependent femtosecond laser spallation and ablation. As an interval of 130.73 , five silver films with increasing thickness from 392.19 to 915. 11 are simulated. Absorbed laser fluences of 0.1 / and 0.3 / are chosen to observe the laser spallation and ablation. The simulation results show that film thickness has close correlation with the Kelvin degree of heating of the laser irradiated silver films, which further affects femtosecond laser spallation and ablation. Suggestions for precise micromachining are proposed in this paper.
KW - Materials processing
KW - Multiscale modeling
KW - Numerical simulation
KW - Thermophysics and thermophysical properties
UR - http://www.scopus.com/inward/record.url?scp=85068319822&partnerID=8YFLogxK
U2 - 10.1615/ihtc16.nmt.021385
DO - 10.1615/ihtc16.nmt.021385
M3 - Conference article
AN - SCOPUS:85068319822
SN - 2377-424X
VL - 2018-August
SP - 7117
EP - 7124
JO - International Heat Transfer Conference
JF - International Heat Transfer Conference
T2 - 16th International Heat Transfer Conference, IHTC 2018
Y2 - 10 August 2018 through 15 August 2018
ER -