Molecular dynamics simulations of tungsten bombardments on tungsten nanoparticles
Molecular dynamics simulations of tungsten bombardments on tungsten nanoparticles
复制标题
钨轰击钨纳米粒子的分子动力学模拟
DOI：
10.1016/j.nimb.2018.04.028
复制
发表时间：
2019-07-01
影响因子：
1.3
通讯作者：
Fu, Baoqin
中科院分区：
文献类型：
--
作者：
Li, Min;Hou, Qing;Fu, Baoqin
用分子动力学方法模拟了单个钨原子轰击钨纳米颗粒的过程。将50 eV ~ 50 keV的弹丸钨原子注入到直径为2 ~ 12 nm的钨纳米颗粒中。发现纳米粒子的溅射和弹丸的保留与纳米粒子的尺寸和弹丸能量有关。纳米粒子的轴向也对溅射有一定的影响。研究结果有助于理解核聚变装置中钨纳米颗粒的行为。
The bombardment process of a single tungsten atom on a tungsten nanoparticle was simulated by molecular dynamics. Projectile tungsten atoms ranging from 50 eV to 50 keV were injected into tungsten nanoparticles with diameters ranging from 2 to 12 nm. The sputtering of the nanoparticles and the retention of projectiles were found to be relative to the nanoparticle size and projectile energy. The axial direction of the nanoparticles also influenced the sputtering to some degree. The results are useful in understanding the behavior of tungsten nanoparticles generated in nuclear fusion devices.