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中文摘要：
运用分子动力学方法研究了金属钛中氦的扩散聚集行为.在300—800K的温度范围内,模拟了钛基底中氦团簇之间的融合过程.研究发现,温度的升高会加快氦团簇的融合.在300—800K,融合后的氦团簇在所模拟的时间尺度内三维结构保持不变.模拟结果还表明,常温下氦团簇之间的吸引力是导致氦团簇融合的重要因素.
英文摘要：
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 800 K.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.
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