Intense sonoimplantation of atoms from gases into metals

摘要

It was found that various gaseous atoms can be easily implanted into metal powders under ultrasonic cavitation inside a vessel with water (H_(2)O, D_(2)O or a mixture thereof). Inert gases (~(3)He, ~(4)He, Ne, and Ar) and others (N_(2), air, H_(2), and D_(2)) were strongly sonoimplanted into metals such as Ti, Fe, Ni, Cu, Zr, Pd, Ag, Ta, Pt, and Au, which were originally set in the vessel as foils, and were broken into ultrafine metal powders during intense ultrasonic processing. A large amount of implanted atoms was verified to exist in these powders from mass spectroscopic analyses.