Open AccessIn-situ spectro-electrochemical studies of radionuclide contaminated surface films on metals and the mechanism of their formation and dissolution. 1998 annual progress report
Author(s) -
C. A. Melendres,
S. M. Mini
Publication year - 1998
Language(s) - English
Resource type - Reports
DOI - 10.2172/13676
Subject(s) - radioactive waste , dissolution , radionuclide , materials science , corrosion , raman spectroscopy , piping , electrochemistry , metallurgy , contamination , chromium , human decontamination , chemical engineering , environmental science , waste management , chemistry , nuclear chemistry , environmental engineering , electrode , nuclear physics , engineering , physics , optics , biology , ecology
'The objective of this research program is to gain a fundamental understanding of the structure, composition, and mechanism of formation of radionuclide-containing surface films on metals that are relevant to the problem of decontamination of piping systems and waste storage tanks at DOE nuclear processing facilities. As of May 1998, after about a year and a half of work towards implementing this project, considerable progress has been made in understanding the mechanism and structure of heavy metal ions incorporated into simulated corrosion films of nickel. The nature of iron and chromium oxide films, which are used to model the other components of steels used in piping systems and waste storage tanks in nuclear facilities, has also been elucidated. The principal techniques used in these investigations consist of coupled electrochemical and in-situ synchrotron X-ray absorption spectroscopy, as well as vibrational spectroscopy (infrared and laser Raman).