| Title | MULTISCALE INVESTIGATION OF THICKNESS DEPENDENT MELTING THRESHOLDS OF NICKEL FILM UNDER FEMTOSECOND LASER HEATING |
| Author | |
| Corresponding Author | Ji, Pengfei |
| DOI | |
| Publication Years | 2019
|
| Source Title | |
| Volume | 8A-2018
|
| Conference Place | Pittsburgh, PA, United states
|
| Publication Place | THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
|
| Publisher | |
| Abstract | A multiscale modeling that integrates electronic scale ab initio quantum mechanical calculation, atomic scale molecular dynamics simulation, and continuum scale two-temperature model description of the femtosecond laser processing of nickel film at different thicknesses is carried out in this paper. The electron thermophysical parameters (heat capacity, thermal conductivity, and electron-phonon coupling factor) are calculated from first principles modeling, which are further substituted into molecular dynamics and two-temperature model coupled energy equations of electrons and phonons. The melting thresholds for nickel films of different thicknesses are determined from multiscale simulation. Excellent agreement between results from simulation and experiment is achieved, which demonstrates the validity of modeled multiscale framework and its promising potential to predict more complicate cases of femtosecond laser material processing. When it comes to process nickel film via femtosecond laser, the quantitatively calculated maximum thermal diffusion length provides helpful information on choosing the film thickness. |
| Keywords | |
| SUSTech Authorship | First
; Corresponding
|
| Language | English
|
| URL | [Source Record] |
| Indexed By | |
| Funding Project | Southern University of Science and Technology Presidential Postdoctoral Fellowship - China Postdoctoral Science Foundation[2017M612653]
|
| WOS Research Area | Engineering
; Mechanics
|
| WOS Subject | Engineering, Mechanical
; Mechanics
|
| WOS Accession No | WOS:000465191300034
|
| EI Accession Number | 20191206672380
|
| EI Keywords | Beryllium minerals
; Calculations
; Couplings
; Electron-phonon interactions
; Electronic scales
; Femtosecond lasers
; Heat transfer
; Melting
; Metallic films
; Molecular dynamics
; Nickel
; Quantum theory
; Specific heat
; Surface structure
; Thermal conductivity
; Thermal Engineering
|
| ESI Classification Code | Minerals:482.2
; Nickel:548.1
; Thermodynamics:641.1
; Heat Transfer:641.2
; Laser Applications:744.9
; Physical Chemistry:801.4
; Chemical Operations:802.3
; Mathematics:921
; Physical Properties of Gases, Liquids and Solids:931.2
; Quantum Theory; Quantum Mechanics:931.4
|
| Data Source | Web of Science
|
| Citation statistics |
Cited Times [WOS]:0
|
| Document Type | Conference paper |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/24533 |
| Department | Department of Mechanical and Energy Engineering |
| Affiliation | 1.Southern Univ Sci & Technol, Shenzhen Key Lab Addit Mfg High Performance Mat, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China 2.Univ Missouri, Dept Mech & Aerosp Engn, Columbia, MO 65211 USA 3.South China Univ Technol, Key Lab Surface Funct Struct, Mfg Guang Dong Higher Educ Inst, Sch Mech & Automot Engn, Guangzhou 510640, Guangdong, Peoples R China |
| First Author Affilication | Department of Mechanical and Energy Engineering |
| Corresponding Author Affilication | Department of Mechanical and Energy Engineering |
| First Author's First Affilication | Department of Mechanical and Energy Engineering |
| Recommended Citation GB/T 7714 |
Ji, Pengfei,He, Mengzhe,Rong, Yiming,et al. MULTISCALE INVESTIGATION OF THICKNESS DEPENDENT MELTING THRESHOLDS OF NICKEL FILM UNDER FEMTOSECOND LASER HEATING[C]. THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA:AMER SOC MECHANICAL ENGINEERS,2019.
|
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