The paper presents data on the radiation resistance of Ni nanotubes when irradiated with heavy Xe²²⁺ ions with an energy of 230 MeV and fluences of 5 × 10¹⁰–5 × 10¹² ion/cm². The choice of fluences of 5 × 10¹⁰–5 × 10¹² ion/cm² is due to the possibility of simulating the effects of single ion collisions at low irradiation fluences, for which the probability of two ions entering one point is quite low, and by modeling the effects of overlapping defects from two or more ions at high radiation densities. The initial nanostructures are polycrystalline nanotubes with a face-centered nickel phase. According to the results of X-ray phase analysis, no oxide impurities or oxide phases are observed in the structure of nanotubes, which indicates the absence of oxidative processes in the synthesized nanostructures. Also, for the irradiated samples, there are no new diffraction peaks, which indicates the absence of phase transition processes as a result of irradiation. It was found that, at low irradiation fluences, a change in the orientation of crystallites occurs, which indicates a rearrangement of the crystal structure and partial ordering. However, an increase in the irradiation fluence above 1 × 10¹¹ ion/cm² leads to a sharp decrease in long-range intensities, as well as a shift of diffraction maxima to the region of small angles, which indicates a distortion of the crystal structure and its partial disordering as a result of irradiation. In the case of large irradiation fluences, which are characterized by the occurrence of areas of overlapping ion trajectories, the material exhibits disorientation of crystallites in the structure, as well as the absence of pronounced texture orientations.

本文介绍了以230 MeV能量和5×10 ¹⁰ –5×10 ¹²  ion / cm ^2的通量辐照的重Xe ²²⁺离子辐照后，镍纳米管的抗辐射性数据。通量的选择为5×10 ¹⁰ –5×10 ¹²  ion / cm ²这是由于有可能模拟在低辐照通量下单离子碰撞的影响（对于该影响，两个离子进入一个点的可能性非常低），以及通过对高辐射密度下两个或多个离子的重叠缺陷的影响进行建模。最初的纳米结构是具有面心镍相的多晶纳米管。根据X射线相分析的结果，在纳米管的结构中没有观察到氧化物杂质或氧化物相，这表明在合成的纳米结构中不存在氧化过程。另外，对于被辐照的样品，没有新的衍射峰，这表明由于辐照而没有相变过程。发现在低辐射通量下，会发生微晶取向的变化，这表明晶体结构和部分有序的重排。但是，辐射通量增加到1×10以上¹¹  ion / cm ²导致远距离强度急剧下降，并且衍射最大值移至小角度区域，这表明由于辐射导致晶体结构的变形及其部分无序。在大的辐照通量的情况下，其特征是出现重叠的离子轨迹，该材料在结构中显示出微晶取向失调，并且没有明显的织构取向。