Saturation of the ion-hammering effect for large non-hydrostatic capillarity stresses in colloidal silica nanoparticles
We investigate the role of capillarity stresses on the ion-hammering phenomenon when sub-micrometer colloidal particles are considered. To this end, nearly monodisperse, chemically synthesized silica (SiO2) colloids (100, 300 and 600nm) were irradiated at room temperature (300K) with 4MeV Au ions for fluences up to Φ = 1.8 × 1016cm-2. It has been taken for granted that the transverse dimension of an ion-deformable amorphous material grows exponentially with the irradiation fluence, L(φ) =...[Show more]
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