Open AccessCoalescence of helium clusters in titanium crystals: Molecular dynamics simulation
Author(s) -
Xie Zhao,
Qing Hou,
Jun Wang,
Sun Tie-Ying,
Xinggui Long,
ShiZhong Luo
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.5159
Subject(s) - coalescence (physics) , helium , molecular dynamics , cluster (spacecraft) , materials science , titanium , chemical physics , atmospheric temperature range , atomic physics , physics , thermodynamics , programming language , quantum mechanics , astrobiology , computer science , metallurgy
In this paper, the helium behavior in titanium crystals has been simulated by molecular dynamics method. The coalescence of helium clusters has been investigated in great detail in a range from 300 to 800K. It was found that increasing temperature contributes to the coalescence of helium clusters. However, the helium cluster resulting from coalescence assumes its three-dimensional configuration in this temperature range for the time scale of simulation. The simulation results also indicate that, at room temperature, the attractive force between helium clusters plays a key role in helium cluster coalescence.