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arXiv · 2111.12973

NaRe$_2$(PO$_4$)$_3$ phosphate-based ceramic with kosnarite structure as a matrix for technetium immobilization. Production. Properties

L. Alekseeva·A. Nokhrin·A. Orlova·M. Boldin·E. Lantcev·A. Murashov·K. Korchenkin·D. Ryabkov·V. Chuvildeev
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Abstract

NaRe$_2$(PO$_4$)$_3$ phosphate-based ceramic with the structure of kosnarite mineral was obtained by spark plasma sintering. Rhenium (Re) served as a chemical and structural analog of technetium. The ceramic relative density was 85%. The mechanism of Re static leaching from NaRe$_2$(PO$_4$)$_3$ ceramic at room temperature was investigated. The leaching rate of rhenium was $1.3\times10^{-5}$ g/(cm$^2$*day).

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L. Alekseeva, A. Nokhrin, A. Orlova, M. Boldin, E. Lantcev, A. Murashov, K. Korchenkin, D. Ryabkov, V. Chuvildeev. 2021-11-25. NaRe$_2$(PO$_4$)$_3$ phosphate-based ceramic with kosnarite structure as a matrix for technetium immobilization. Production. Properties. https://doi.org/10.1134/s0020168522030013

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