Journal
RADIOCHEMISTRY
Volume 54, Issue 3, Pages 291-297Publisher
PLEIADES PUBLISHING INC
DOI: 10.1134/S1066362212030137
Keywords
leaching; altered surface layer; borosilicate glass; simulated radioactive waste
Ask authors/readers for more resources
Borosilicate glass specimens incorporating 10, 15, and 20 wt % simulated high-level waste (HLW) were leached at 20, 90, and 120 degrees C in deionized water following the procedure accepted in Russia, GOST (State Standard) R 52126-2003. At 90 degrees C, the altered surface layer is formed already from the first days of leaching. The main interaction in the system occurs at the phase boundary between the altered surface layer and water, rather than at the phase boundary between the glass and water through the porous surface layer as it is commonly believed. The altered surface layer acts as a natural barrier preventing transfer of simulated waste components to the liquid phase. The barrier properties of the altered surface layer are manifested to the greatest extent at 20 wt % content of simulated HLW in the initial glass and leaching temperature of 120 degrees C.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available