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

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 $1.3\times 10^{-5}$ g/(cm${}^2$*day).

19 pages, 9 figures, Category: cond-mat.mtrl-sci