ABSTRACT
This chapter presents experimental studies on the immobilization of various types of solid high-level waste (HLW) into mineral-like matrices using the self-propagating high-temperature synthesis (SHS) method. Dense matrices based on perovskite, zirconolite, pollucite, pyrochlore, garnet, as well as titanium carbide and aluminum oxide were produced by forced SHS compaction. Synthesized matrices were found to exhibit high hydrolytic resistance and mechanical strength. SHS compaction technology for manufacturing large-sized (weighing up to 1.75 kg) ceramic carbide–oxide matrices containing nuclide simulators in metal containers was developed. Studies have shown that the SHS technology is promising for the immobilization of high-level wastes into mineral-like matrix systems and their environmentally safe disposal.
