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dc.contributor.author
Rosandi, Yudi  
dc.contributor.author
Grossi, Joás Santiago  
dc.contributor.author
Bringa, Eduardo Marcial  
dc.contributor.author
Urbassek, Herbert M.  
dc.date.available
2019-11-26T18:37:19Z  
dc.date.issued
2018-01  
dc.identifier.citation
Rosandi, Yudi; Grossi, Joás Santiago; Bringa, Eduardo Marcial; Urbassek, Herbert M.; The Laser ablation of a metal foam: The role of electron-phonon coupling and electronic heat diffusivity; American Institute of Physics; Journal of Applied Physics; 123; 3; 1-2018; 1-8  
dc.identifier.issn
0021-8979  
dc.identifier.uri
http://hdl.handle.net/11336/90533  
dc.description.abstract
The incidence of energetic laser pulses on a metal foam may lead to foam ablation. The processes occurring in the foam may differ strongly from those in a bulk metal: The absorption of laser light, energy transfer to the atomic system, heat conduction, and finally, the atomistic processes-such as melting or evaporation-may be different. In addition, novel phenomena take place, such as a reorganization of the ligament network in the foam. We study all these processes in an Au foam of average porosity 79% and an average ligament diameter of 2.5 nm, using molecular dynamics simulation. The coupling of the electronic system to the atomic system is modeled by using the electron-phonon coupling, g, and the electronic heat diffusivity, κe, as model parameters, since their actual values for foams are unknown. We show that the foam coarsens under laser irradiation. While κe governs the homogeneity of the processes, g mainly determines their time scale. The final porosity reached is independent of the value of g.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
American Institute of Physics  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
LASER  
dc.subject
SHOCK  
dc.subject
FOAM  
dc.subject.classification
Ingeniería de los Materiales  
dc.subject.classification
Ingeniería de los Materiales  
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INGENIERÍAS Y TECNOLOGÍAS  
dc.title
The Laser ablation of a metal foam: The role of electron-phonon coupling and electronic heat diffusivity  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2019-10-23T21:38:39Z  
dc.journal.volume
123  
dc.journal.number
3  
dc.journal.pagination
1-8  
dc.journal.pais
Estados Unidos  
dc.description.fil
Fil: Rosandi, Yudi. Universitas Padjadjaran; Indonesia  
dc.description.fil
Fil: Grossi, Joás Santiago. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina  
dc.description.fil
Fil: Bringa, Eduardo Marcial. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina  
dc.description.fil
Fil: Urbassek, Herbert M.. Universitat Kaiserslauter; Alemania  
dc.journal.title
Journal of Applied Physics  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1063/1.5012594  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/1.5012594