期刊
JETP LETTERS
卷 95, 期 4, 页码 176-181出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0021364012040042
关键词
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资金
- Russian Foundation for Basic Research [10-08-92661- NNF-a, 10-02-00434-a]
- US National Science Foundation [DMR-1008676]
- Ministry of Education and Science of the Russian Federation [14.740.11.0064]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1008676] Funding Source: National Science Foundation
It has been revealed experimentally that nanocavities remain inside a surface layer of aluminum after action of a femtosecond laser pulse. This result is in agreement with numerical simulation. A detailed picture of melting, formation of expansion and compression waves, and bubble nucleation in the stretched melt has been reconstructed through atomistic simulation. It has been shown that the bubbles do not fully collapse but remain as frozen disk-shaped nanocavities upon recrystallization of the melt. The formation of a porous metal with small voids is very important for understanding the physics of laser exposure and may have significant applications.
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