NaRe2(PO4)3 phosphate-based ceramic with kosnarite structure as a matrix for technetium immobilization. Production. Properties
Abstract
NaRe2(PO4)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 NaRe2(PO4)3 ceramic at room temperature was investigated. The leaching rate of rhenium was 1.3×10-5 g/(cm2*day).
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