Preparation of Tc-NpO2 metal-ceramic compositions and their imitators (Re, Th, Nd) for long-term safe storage of long-life fission products
Source abstract
Abstract
The preparation routes for ceramic-metal matrices (CMM) Tc-NpO 2 and their imitators Tc(Re)-ThO 2 and Tc(Re)-Nd 2O 3 with different metal-oxide ratios has been investigated and the physical and chemical properties (such as leaching, thermal stability) of the products were determined. The structure of [Np(H 2O) 3(TcO 4) 4]×H 2O has been determined by single crystal X-ray diffraction analysis. Thermal decomposition of neptunium pertechnetates (IV and VI) as well as their imitators neodymium and thorium perrhenates were considered in detail. The surface morphology for CMM Tc-NpO 2 and the leaching rate of each radionuclide was experimentally determined.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear Materials and Properties · Nuclear materials and radiation effects · Nuclear reactor physics and engineering
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
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