Heavy-Ion Irradiated Polymer Membranes

Heavy Ion Track-Etching of PEEK Membranes

Heavy ion tracks in polymer membranes can be transformed into microand nano-channels by means of wet-chemical etching. Up to now most commonly polycarbonate (PC), polyethylene therephthalate (PET) and polyimide (PI) membranes were employed for this purpose. For some applications such as proton conductive membranes for fuel cells, high resistance of the material against heat and solvents as well...

Infrared Analysis of Electrostatic Layer-By-Layer Polymer Membranes Having Characteristics of Heavy Metal Ion Desalination

Thermal annealing study of swift heavy-ion irradiated zirconia

Sintered samples of monoclinic zirconia (α-ZrO2) have been irradiated at room temperature with 6.0-GeV Pb ions in the electronic slowing down regime. X-ray diffraction (XRD) and micro-Raman spectroscopy measurements showed unambiguously that a transition to the ‘metastable’ tetragonal phase (β-ZrO2) occurred at a fluence of 6.5x10 cm for a large electronic stopping power value (≈ 32.5 MeV μm). ...

Structural modification of swift heavy ion irradiated amorphous germanium layers

Swift heavy ion (SHI) irradiation of conventional glasses results in non-saturable plastic flow as a consequence of the ion hammering effect [1]. SHI irradiation of amorphous Si (a-Si) at non-perpendicular incidence also leads to unsaturated plastic flow, which shows a linear dependence on the ion fluence. The positive direction of flow suggests that a liquid phase with density similar to that ...

Nanoscale density fluctuations in swift heavy ion irradiated amorphous SiO2

amorphous SiO2 P. Kluth, O. H. Pakarinen, F. Djurabekova, R. Giulian, M. C. Ridgway, A. P. Byrne, and K. Nordlund Department of Electronic Materials Engineering, Australian National University, Canberra ACT 0200, Australia Department of Physics and Helsinki Institute of Physics, University of Helsinki, Helsinki, Finland Department of Nuclear Physics, Australian National University, Canberra ACT...