Possible mechanism of void nucleation in FCC metals
| Autor: | V. I. Protasov, V. G. Chudinov |
|---|---|
| Rok vydání: | 1984 |
| Předmět: |
Void (astronomy)
Condensed Matter::Other Chemistry Kinetics General Engineering Nucleation Thermodynamics Astrophysics::Cosmology and Extragalactic Astrophysics Crystallographic defect Metal Condensed Matter::Materials Science Molecular dynamics Transition metal Vacancy defect visual_art Physics::Atomic and Molecular Clusters visual_art.visual_art_medium Physical chemistry |
| Zdroj: | Radiation Effects. 81:83-88 |
| ISSN: | 0033-7579 |
| DOI: | 10.1080/00337578408206058 |
| Popis: | Kinetics of a void in fcc metals is simulated by the molecular dynamics technique (MDT). A void is shown to overcome the critical size through a dendrite formed of di-vacancies. The scheme for void nucleation and growth is as follows: mobile vacancy-mobile di-vacancy-dendrite-void of a critical size-void growing by adding single vacancies. This mechanism is associated with entropy contribution (the value of which is comparable with that of inner energy) to free energy at the temperature of vacancy diffusion. |
| Databáze: | OpenAIRE |
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