Abstract The main goal of this work is to study the effect of irradiation with protons with an energy of 0.5–1.5 MeV at a fluence of 1х1017 proton/cm2 on the mechanical and structural properties of AlN ceramics. The choice of AlN ceramics as objects of study is due to their high resistance to radiation damage, their great potential for using them as structural materials, dosimetric materials, etc. During the tests, it was found that at low incident particle energies the degree of deformation of the crystal structure is greatest, due to the fact that all radiation defects are closed in a small volume of the surface layer. An increase in proton energy leads to an increase in the path length of protons in ceramics, while a decrease in damage to the surface layer is observed, however, the damage depth becomes larger with an increase in proton energy. The obtained results confirm a high degree of resistance to hydrogenation processes when irradiated with protons with energies of 1.0–1.5 MeV, however, at energies of incident protons of 0.5 MeV, a decrease in strength properties is observed due to the presence of a large number of dislocation and point defects in the near-surface layer of small volume, which leads to partial disordering and degradation of structural and optical properties.

中文翻译：

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入射质子能量对AlN陶瓷缺陷形成和耐辐射性能的影响

摘要 这项工作的主要目标是研究能量为 0.5-1.5 MeV 的质子在 1х1017 质子/cm2 的能量密度下对 AlN 陶瓷的机械和结构性能的影响。选择 AlN 陶瓷作为研究对象是因为它们具有较高的抗辐射损伤能力，具有用作结构材料、剂量学材料等的巨大潜力。在测试过程中发现，在低入射粒子能量下，晶体结构的变形最大，因为所有的辐射缺陷都封闭在小体积的表面层中。质子能量的增加导致质子在陶瓷中的路径长度增加，同时观察到对表面层的损伤减少，但随着质子能量的增加，损伤深度变大。