Open AccessAnalysis of components from drip tests with ATM-10 glass
Author(s) -
J. Fortner,
J.K. Bates,
T.J. Gerding
Publication year - 1996
Language(s) - English
Resource type - Reports
DOI - 10.2172/459914
Subject(s) - thorium , radioactive waste , groundwater , uranium , silicate glass , actinide , silicate , amorphous solid , titanium , materials science , corrosion , metallurgy , waste management , mineralogy , environmental science , geology , composite material , nuclear chemistry , geotechnical engineering , chemical engineering , chemistry , engineering , organic chemistry
Waste package assemblies consisting of actinide-doped West Valley ATM-10 reference glass and sensitized 304L stainless steel have been reacted with simulated repository groundwater using the Unsaturated Test Method. Analyses of surface corrosion and reaction products resulting from tests that were terminated at scheduled intervals between 13 and 52 weeks are reported. Analyses reveal complex interactions between the groundwater, the sensitized stainless steel waste form holder, and the glass. Alteration phases form that consist mainly of smectite clay, brockite, and an amorphous thorium iron titanium silicate, the latter two incorporating thorium, uranium, and possibly transuranics. The results from the terminated tests, combined with data from tests that are still ongoing, will help determine the suitability of glass waste forms in the proposed high-level repository at the Yucca Mountain Site