The formation of nanopores in metal materials after irradiation by beams of Ar+ with energy of 30 keV

7th International Conference Radiation-thermal Effects and Processes in Inorganic Materials

材料科学;物理学

Ivchenko, V.A.^1,2

Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, ul. Amundsena 106, Ekaterinburg

620016, Russia^1

Yeltsin Ural Federal University, Yekaterinburg

620002, Russia^2

关键词: Atomic layer;    FCC metals;    Field ion microscopy;    Ion implanted;    Irradiated surface;    Metal materials;    Metals materials;    Radiation stability;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/168/1/012009/pdf
DOI  :  10.1088/1757-899X/168/1/012009

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this paper are the results of direction observations of nanopores in the subsurface volume of metals materials Pt and Pd(CuAg) using field-ion microscopy (FIM). Radiation of tip specimens was carried out with ions having an energy ∼ 25-30 keV in the fluency range of 1016- 1018ions/cm2, the current density lying within 150- 340 μ A/cm2. Nanopores have been observed immediately after removal of the first atomic layers from the irradiated surface. It was established that, the threshold for ion-implanted platinum corresponds to fluence F = 1017ions/cm2. For Pd(CuAg) it was revealed that nanopores have been down to 80 nm deep with current density 340 μ A/cm2. Their dimensions and volume fractions were determined. The obtained results can be used for prediction of radiation stability of materials based on fcc metals.