(Na, Zr) and (Ca, Zr) Phosphate-Molybdates and Phosphate-Tungstates: II–Radiation Test and Hydrolytic Stability
Karaeva M.E. Savinykh D.O. Orlova A.I. Nokhrin A.V. Boldin M.S. Murashov A.A. Chuvil’deev V.N. Skuratov V.A. Issatov A.T. Yunin P.A. Nazarov A.A. Drozdov M.N. Potanina E.A. Tabachkova N.Y.
February 2023MDPI
Materials
2023#16Issue 3
This paper introduces the results of hydrolytic stability tests and radiation resistance tests of phosphate molybdates and phosphate tungstates Na1−xZr2(PO4)3−x(XO4)x, X = Mo, W (0 ≤ x ≤ 0.5). The ceramics characterized by relatively high density (more than 97.5%) were produced by spark plasma sintering (SPS) of submicron powders obtained by sol–gel synthesis. The study focused on hydrolytic resistance of the ceramics in static mode at room temperature. After 28 days of testing in distilled water, the normalized leaching rate was determined. It was found that the ceramics demonstrated high hydrolytic resistance in static mode: the normalized leaching rates for Mo- and W-containing ceramics were 31·10−6 and 3.36·10−6 g·cm−2·day−1, respectively. The ceramics demonstrated high resistance to irradiation with 167 MeV Xe+26 multiple-charged ions at fluences ranging from 1·1012 to 6·1013 cm−2. The Mo-containing Na0.5Zr2(PO4)2.5(XO4)0.5 ceramics were shown to have higher radiation resistance than phosphate tungstates. Radiation was shown to trigger an increase in leaching rates for W and Mo in the crystal structure of NZP ceramics.
ceramics , hydrolytic stability , NASICON , NZP , radiation resistance , spark plasma sintering
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Physical and Technical Research Institute, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, 603022, Russian Federation
G.N. Flerov Laboratory of Nuclear Reactions, Joint Institute of Nuclear Research, Dubna, 141980, Russian Federation
Institute of Nuclear Physics and Engineering, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow, 115409, Russian Federation
Department of Nuclear Physics, Dubna State University, Dubna, 181982, Russian Federation
International Department of Nuclear Physics, New Materials and Technologies, The Faculty of Physics and Technology, Gumilov Eurasian National University, Nur-Sultan, 010000, Kazakhstan
Laboratory of Nuclear Processes, Nuclear Physics Department, The Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
Laboratory of Diagnostics of Radiation Defects in Solid State Nanostructure, Institute for Physics of Microstructure, Russian Academy of Science, Nizhniy Novgorod, 603950, Russian Federation
Center Collective Use “Materials Science and Metallurgy”, National University of Science and Technology “MISIS”, Moscow, 119991, Russian Federation
Laboratory “FIANIT”, Laser Materials and Technology Research Center, A.M. Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, 119991, Russian Federation
Physical and Technical Research Institute
G.N. Flerov Laboratory of Nuclear Reactions
Institute of Nuclear Physics and Engineering
Department of Nuclear Physics
International Department of Nuclear Physics
Laboratory of Nuclear Processes
Laboratory of Diagnostics of Radiation Defects in Solid State Nanostructure
Center Collective Use “Materials Science and Metallurgy”
Laboratory “FIANIT”
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