Abstract
The thermal stability of the metastable solid solutions obtained by implantation of Au- and Pb-ions in Fe single crystals at room temperature was studied by the channeling and backscattering technique. The maximum observed substitutional concentration in as-implanted crystals was 7 at.% in the case of Au and 3 at.% in the case of Pb. Equilibrium phase diagrams show that Au is soluble whereas Pb is insoluble in Fe. The precipitation and diffusion of the implanted species started at 450°C. The observed Au and Pb transport towards the surface at this temperature is probably due to the vacancy assisted migration. Pb-atoms are lost at the surface by sublimation. Au-atoms agglomerate at the surface. These Au precipitates act as a source for the observed in-diffusion of Au at higher temperatures with an activation energy of about 3 eV.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Nuclear Instruments and Methods in Physics Research
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
