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Ion-fluence dependencies of nanoindentation hardness (a), Young’s modulus (b), and tensile strength (c) after irradiation with MeV , , and ions. See Table I for the details of irradiation conditions.
Dependence of relative hardness on relative Young’s modulus for irradiation with MeV , , and ions. Inset: The dependence of relative tensile strength on relative hardness.
Dependencies of relative hardness (open symbols), relative Young’s modulus (closed symbols), and relative tensile strength (half filled symbols) on the total electronic energy loss deposited (defined as the stopping power times fluence). The inset shows the dependence of parameters on the electronic energy loss for the three ion species studied.
Ion irradiation conditions used in this study. In all cases, irradiation was done at room temperature. Calculated values of the projected ion range as well as electronic and nuclear stopping powers are also given. These calculations were done with the TRIM codea.
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