Molecular Dynamics Simulations of Deposition and Damage on Tungsten Plasma-Facing Materials by Tungsten Dust

被引：0
|
作者：
牛国鉴 [1 ,2 ]
李小椿 [1 ]
丁锐 [1 ]
徐倩 [1 ]
罗广南 [1 ]
机构：
[1] Institute of Plasma Physics, Chinese Academy of Sciences
[2] University of Science and Technology of
来源：
Plasma Science and Technology. | 2014年 / 16卷 / 08期
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摘要：
Classical molecular dynamics has been used to study the interactions between tungsten(W) plasma-facing materials(PFMs) and dust grains. The impact velocity of dust grains is in the range from 324 m/s to 3240 m/s. The main effect of dust grains with low impact velocity is deposition. However, a material surface can be damaged by high velocity dust grains. The cumulative damage of impacting dust grains has also been take into account. When the impact velocity is low, no significant damage is detected but a porous firm forms on the surface. Serious damage can be produced on PFMs if the impact velocity is high.
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页数：4
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