利用物理气相沉积法成功制备出了镁纳米线,并研究了镁纳米线的制备工艺,提出了其形成机理。结果发现,在特定的蒸发温度和沉积距离下,可制备得到不同尺寸的镁纳米线。随蒸发温度和沉积距离增加,镁纳米线随之变得更粗更长,并最终转变为镁微米颗粒。根据实验结果,本文绘制了一个镁纳米线在不同蒸发温度和沉积距离下的分布图。同时研究还发现镁纳米线是沿着[1120]这一晶体学方向生长,并提出了镁纳米线沿着[1120]方向生长的生长机理。 Magnesium nanowires were successfully prepared by physical vapor deposition and the preparation of magnesium nanowires was studied. The formation mechanism of magnesium nanowires was also proposed. As a result, it was found that magnesium nanowires of different sizes can be prepared at a specific evaporation temperature and deposition distance. With the increase of evaporation temperature and deposition distance, the Mg nanowires become coarser and longer and finally transform to Mg microparticles. According to the experimental results, we plot the distribution of magnesium nanowires at different evaporation temperatures and deposition distances. At the same time, the study also found that magnesium nanowires grow along the [1120] direction of crystallography and proposed the growth mechanism of magnesium nanowires along the [1120] direction.