Nanoprecipitation resulting from the decomposition of supersaturated solid solutions in the tracks of swift heavy ions

摘要: The electron subsystem of a material is strongly excited when swift heavy ions pass through the material. subsequent relaxation this excitation results in considerable short-term (<10−9 s) heating nanometer vicinity projectile trajectory. Nanoprecipitation stimulated by such thermal spikes supersaturated solid solutions studied. Nanoprecipitates are shown to form temperature track reaches point where characteristic time precipitation becomes shorter than cooling track. region most efficient may be offset from axis. initial cylindrical nonuniformity spatial density nucleating clusters cause formation nanodimensional tubular heterostructures extended along trajectory ions. parameters system that favorable mode found.