Depth concentrations of deuterium ions implanted into some pure metals and alloys

TL;DR

This study investigates the depth distribution and stability of deuterium ions implanted into pure metals and Pd alloys, revealing high diffusion rates and nanoscale defect formation through experimental analysis.

Contribution

It provides new insights into the stability and diffusion behavior of deuterium in various metals and alloys using ERDA, RBS, and X-ray scattering techniques.

Findings

High diffusion rates of deuterium in V and Pd metals and alloys.

Deuterium stability varies between pure metals and alloys.

Nanosized defects form in implanted corundum and titanium.

Abstract

Pure metals (Cu, Ti, Zr, V, Pd) and diluted Pd-alloys (Pd-Ag, Pd-Pt, Pd-Ru, Pd-Rh) were implanted by 25 keV deuterium ions at fluences in the range (1.2{\div}2.3)x1022 D+/m2. The post-treatment depth distributions of deuterium ions were measured 10 days and three months after the implantation using Elastic Recoil Detection Analysis (ERDA) and Rutherford Backscattering (RBS). Comparison of the obtained results allowed to make conclusions about relative stability of deuterium and hydrogen gases in pure metals and diluted Pd alloys. Very high diffusion rates of implanted deuterium ions from V and Pd pure metals and Pd alloys were observed. Small-angle X-ray scattering revealed formation of nanosized defects in implanted corundum and titanium.